GET /api/unimod/?format=api&offset=460&ordering=-name
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 1543,
    "next": "https://cinder.proteo.info/api/unimod/?format=api&limit=20&offset=480&ordering=-name",
    "previous": "https://cinder.proteo.info/api/unimod/?format=api&limit=20&offset=440&ordering=-name",
    "results": [
        {
            "accession": "UNIMOD:971",
            "name": "maleimide3",
            "definition": "Maleimide-3-saccharide.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(59) C(37) N(7) O(23)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "hooverdm"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "969.8975"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Post-translational"
                },
                {
                    "id": "spec_2_group",
                    "description": "2"
                },
                {
                    "id": "spec_2_position",
                    "description": "Anywhere"
                },
                {
                    "id": "spec_2_classification",
                    "description": "Post-translational"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "969.366232"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "C"
                },
                {
                    "id": "record_id",
                    "description": "971"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "date_time_posted",
                    "description": "2010-02-12 17:23:33"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2010-04-05 21:30:05"
                }
            ]
        },
        {
            "accession": "UNIMOD:773",
            "name": "maleimide",
            "definition": "Maleimide.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(3) C(4) N O(2)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "mjayson"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "97.0721"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_site",
                    "description": "C"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "spec_2_group",
                    "description": "2"
                },
                {
                    "id": "spec_2_position",
                    "description": "Anywhere"
                },
                {
                    "id": "spec_2_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "97.016378"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "K"
                },
                {
                    "id": "record_id",
                    "description": "773"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "date_time_posted",
                    "description": "2007-09-05 23:31:52"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2007-09-06 11:28:09"
                }
            ]
        },
        {
            "accession": "UNIMOD:600",
            "name": "Lys->Xle",
            "definition": "Lys->Leu/Ile substitution.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-1) N(-1)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "-15.0146"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "600"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "-15.010899"
                },
                {
                    "id": "date_time_posted",
                    "description": "2006-11-09 11:22:38"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-06-21 15:25:01"
                }
            ]
        },
        {
            "accession": "UNIMOD:1139",
            "name": "Lys->Val",
            "definition": "Lys->Val substitution.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-3) C(-1) N(-1)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "-29.0412"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "1139"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "-29.026549"
                },
                {
                    "id": "date_time_posted",
                    "description": "2011-06-21 16:03:49"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-06-21 16:03:49"
                }
            ]
        },
        {
            "accession": "UNIMOD:1141",
            "name": "Lys->Tyr",
            "definition": "Lys->Tyr substitution.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-3) C(3) N(-1) O"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "35.001"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "1141"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "34.968366"
                },
                {
                    "id": "date_time_posted",
                    "description": "2011-06-21 16:04:35"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-06-21 16:04:35"
                }
            ]
        },
        {
            "accession": "UNIMOD:1140",
            "name": "Lys->Trp",
            "definition": "Lys->Trp substitution.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-2) C(5)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "58.0376"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "1140"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "57.98435"
                },
                {
                    "id": "date_time_posted",
                    "description": "2011-06-21 16:04:11"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-06-21 16:04:11"
                }
            ]
        },
        {
            "accession": "UNIMOD:594",
            "name": "Lys->Thr",
            "definition": "Lys->Thr substitution.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-5) C(-2) N(-1) O"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "-27.0684"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "594"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "-27.047285"
                },
                {
                    "id": "date_time_posted",
                    "description": "2006-11-09 11:20:28"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2006-11-09 11:20:28"
                }
            ]
        },
        {
            "accession": "UNIMOD:1138",
            "name": "Lys->Ser",
            "definition": "Lys->Ser substitution.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-7) C(-3) N(-1) O"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "-41.095"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "1138"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "-41.062935"
                },
                {
                    "id": "date_time_posted",
                    "description": "2011-06-21 16:03:27"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-06-21 16:03:27"
                }
            ]
        },
        {
            "accession": "UNIMOD:1137",
            "name": "Lys->Pro",
            "definition": "Lys->Pro substitution.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-5) C(-1) N(-1)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "-31.0571"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "1137"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "-31.042199"
                },
                {
                    "id": "date_time_posted",
                    "description": "2011-06-21 16:03:06"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-06-21 16:03:06"
                }
            ]
        },
        {
            "accession": "UNIMOD:1134",
            "name": "Lys->Phe",
            "definition": "Lys->Phe substitution.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-3) C(3) N(-1)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "19.0016"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "1134"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "18.973451"
                },
                {
                    "id": "date_time_posted",
                    "description": "2011-06-21 16:01:56"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-06-21 16:01:56"
                }
            ]
        },
        {
            "accession": "UNIMOD:2036",
            "name": "Lys+O(2)",
            "definition": "Photo-induced Lysine adduct.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(12) C(6) N(2) O(3)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "tomp1808"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "160.1711"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "H"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Post-translational"
                },
                {
                    "id": "record_id",
                    "description": "2036"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "160.084792"
                },
                {
                    "id": "date_time_posted",
                    "description": "2021-02-01 13:33:53"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2021-03-09 13:28:34"
                }
            ]
        },
        {
            "accession": "UNIMOD:906",
            "name": "Lys->MetOx",
            "definition": "Lys->Met substitution and sulfoxidation.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-3) C(-1) N(-1) O S"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "hooverdm"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "19.0232"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Pre-translational"
                },
                {
                    "id": "record_id",
                    "description": "906"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "18.940436"
                },
                {
                    "id": "date_time_posted",
                    "description": "2009-04-17 14:51:35"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2009-05-01 16:46:28"
                }
            ]
        },
        {
            "accession": "UNIMOD:598",
            "name": "Lys->Met",
            "definition": "Lys->Met substitution.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-3) C(-1) N(-1) S"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "3.0238"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "598"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "2.945522"
                },
                {
                    "id": "date_time_posted",
                    "description": "2006-11-09 11:21:56"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2006-11-09 11:21:56"
                }
            ]
        },
        {
            "accession": "UNIMOD:313",
            "name": "Lys-loss",
            "definition": "Loss of Lysine.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-12) C(-6) N(-2) O(-1)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "spec_2_misc_notes",
                    "description": "Error in peptide synthesis"
                },
                {
                    "id": "username_of_poster",
                    "description": "whaskins"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "-128.1723"
                },
                {
                    "id": "group_of_poster",
                    "description": "users"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Post-translational"
                },
                {
                    "id": "spec_2_group",
                    "description": "2"
                },
                {
                    "id": "spec_2_position",
                    "description": "Anywhere"
                },
                {
                    "id": "spec_2_classification",
                    "description": "Artefact"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "-128.094963"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "K"
                },
                {
                    "id": "record_id",
                    "description": "313"
                },
                {
                    "id": "spec_1_position",
                    "description": "Protein C-term"
                },
                {
                    "id": "date_time_posted",
                    "description": "2005-04-25 20:05:38"
                },
                {
                    "id": "approved",
                    "description": "1"
                },
                {
                    "id": "date_time_modified",
                    "description": "2021-09-06 11:24:44"
                }
            ]
        },
        {
            "accession": "UNIMOD:1136",
            "name": "Lys->His",
            "definition": "Lys->His substitution.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-5) N"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "8.967"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "1136"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "8.963949"
                },
                {
                    "id": "date_time_posted",
                    "description": "2011-06-21 16:02:42"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-06-21 16:02:42"
                }
            ]
        },
        {
            "accession": "UNIMOD:1135",
            "name": "Lys->Gly",
            "definition": "Lys->Gly substitution.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-9) C(-4) N(-1)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "-71.121"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "1135"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "-71.073499"
                },
                {
                    "id": "date_time_posted",
                    "description": "2011-06-21 16:02:20"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-06-21 16:02:20"
                }
            ]
        },
        {
            "accession": "UNIMOD:596",
            "name": "Lys->Glu",
            "definition": "Lys->Glu substitution.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-5) C(-1) N(-1) O(2)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "0.9417"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "596"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "0.94763"
                },
                {
                    "id": "date_time_posted",
                    "description": "2006-11-09 11:21:12"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2006-11-09 11:21:12"
                }
            ]
        },
        {
            "accession": "UNIMOD:597",
            "name": "Lys->Gln",
            "definition": "Lys->Gln substitution.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-4) C(-1) O"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "-0.0431"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "597"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "-0.036386"
                },
                {
                    "id": "date_time_posted",
                    "description": "2006-11-09 11:21:32"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2006-11-09 11:21:32"
                }
            ]
        },
        {
            "accession": "UNIMOD:1132",
            "name": "Lys->Cys",
            "definition": "Lys->Cys substitution.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-7) C(-3) N(-1) S"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "-25.0294"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "1132"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "-25.085779"
                },
                {
                    "id": "date_time_posted",
                    "description": "2011-06-21 16:01:01"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-06-21 16:01:01"
                }
            ]
        },
        {
            "accession": "UNIMOD:903",
            "name": "Lys->CamCys",
            "definition": "Lys->Cys substitution and carbamidomethylation.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-4) C(-1) O S"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "hooverdm"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "32.0219"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Pre-translational"
                },
                {
                    "id": "record_id",
                    "description": "903"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "31.935685"
                },
                {
                    "id": "date_time_posted",
                    "description": "2009-04-17 14:47:30"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2009-05-01 16:47:52"
                }
            ]
        }
    ]
}