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                {
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        },
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            "accession": "UNIMOD:545",
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            ]
        },
        {
            "accession": "UNIMOD:544",
            "name": "Ala->Gly",
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                {
                    "id": "delta_composition",
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                    "id": "spec_1_classification",
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                    "id": "record_id",
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                    "id": "spec_1_position",
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                    "description": "2006-11-09 10:16:35"
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                    "description": "0"
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                    "id": "date_time_modified",
                    "description": "2006-11-09 10:16:35"
                }
            ]
        },
        {
            "accession": "UNIMOD:1046",
            "name": "Ala->His",
            "definition": "Ala->His substitution.",
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                {
                    "id": "delta_composition",
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                    "id": "spec_1_hidden",
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                {
                    "id": "spec_1_site",
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                {
                    "id": "spec_1_classification",
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                {
                    "id": "record_id",
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                {
                    "id": "spec_1_position",
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                    "id": "delta_mono_mass",
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                    "id": "date_time_posted",
                    "description": "2011-06-20 16:56:21"
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                    "id": "date_time_modified",
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            ]
        },
        {
            "accession": "UNIMOD:1048",
            "name": "Ala->Lys",
            "definition": "Ala->Lys substitution.",
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                {
                    "id": "delta_composition",
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                    "id": "delta_avge_mass",
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                    "id": "group_of_poster",
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                    "id": "spec_1_hidden",
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                {
                    "id": "spec_1_site",
                    "description": "A"
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                    "id": "spec_1_classification",
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                    "id": "record_id",
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                    "id": "spec_1_position",
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        },
        {
            "accession": "UNIMOD:1049",
            "name": "Ala->Met",
            "definition": "Ala->Met substitution.",
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                {
                    "id": "delta_composition",
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                    "id": "spec_1_group",
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                    "id": "record_id",
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                    "id": "spec_1_position",
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                    "id": "delta_mono_mass",
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                    "id": "date_time_posted",
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                    "id": "approved",
                    "description": "0"
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                    "id": "date_time_modified",
                    "description": "2011-06-20 16:58:05"
                }
            ]
        },
        {
            "accession": "UNIMOD:1045",
            "name": "Ala->Phe",
            "definition": "Ala->Phe substitution.",
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                {
                    "id": "delta_composition",
                    "description": "H(4) C(6)"
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                    "id": "spec_1_group",
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                    "id": "username_of_poster",
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                    "id": "delta_avge_mass",
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                    "id": "spec_1_hidden",
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                    "id": "spec_1_site",
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                    "id": "spec_1_classification",
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                    "id": "record_id",
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                    "id": "spec_1_position",
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                    "id": "delta_mono_mass",
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                    "id": "date_time_posted",
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            ]
        },
        {
            "accession": "UNIMOD:543",
            "name": "Ala->Pro",
            "definition": "Ala->Pro substitution.",
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                {
                    "id": "delta_composition",
                    "description": "H(2) C(2)"
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                    "id": "spec_1_group",
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                    "id": "username_of_poster",
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                {
                    "id": "delta_avge_mass",
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                    "id": "group_of_poster",
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                    "id": "spec_1_hidden",
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                    "id": "spec_1_site",
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                    "id": "spec_1_classification",
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                    "id": "record_id",
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                    "id": "spec_1_position",
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            ]
        },
        {
            "accession": "UNIMOD:540",
            "name": "Ala->Ser",
            "definition": "Ala->Ser substitution.",
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                {
                    "id": "delta_composition",
                    "description": "O"
                },
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                    "id": "spec_1_group",
                    "description": "1"
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                    "id": "username_of_poster",
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                {
                    "id": "delta_avge_mass",
                    "description": "15.9994"
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                    "id": "record_id",
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                }
            ]
        },
        {
            "accession": "UNIMOD:541",
            "name": "Ala->Thr",
            "definition": "Ala->Thr substitution.",
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                {
                    "id": "delta_composition",
                    "description": "H(2) C O"
                },
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                    "id": "spec_1_group",
                    "description": "1"
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                    "id": "username_of_poster",
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                {
                    "id": "delta_avge_mass",
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                    "id": "group_of_poster",
                    "description": ""
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                    "id": "spec_1_hidden",
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                    "id": "spec_1_site",
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                },
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                    "id": "spec_1_classification",
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                {
                    "id": "record_id",
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                    "id": "spec_1_position",
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                    "id": "delta_mono_mass",
                    "description": "30.010565"
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                {
                    "id": "date_time_posted",
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        },
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                {
                    "id": "delta_composition",
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                    "id": "spec_1_group",
                    "description": "1"
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                    "id": "username_of_poster",
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                {
                    "id": "delta_avge_mass",
                    "description": "115.132"
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                    "id": "group_of_poster",
                    "description": ""
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                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
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                },
                {
                    "id": "spec_1_classification",
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                {
                    "id": "record_id",
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                {
                    "id": "spec_1_position",
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                {
                    "id": "delta_mono_mass",
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                    "id": "date_time_posted",
                    "description": "2011-06-20 16:59:45"
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                    "description": "2011-06-20 16:59:45"
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            ]
        },
        {
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            "definition": "Ala->Tyr substitution.",
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                    "id": "delta_composition",
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                    "id": "username_of_poster",
                    "description": "unimod"
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                {
                    "id": "delta_avge_mass",
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                    "id": "delta_mono_mass",
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            ]
        },
        {
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            "name": "Ala->Val",
            "definition": "Ala->Val substitution.",
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                    "id": "delta_composition",
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                },
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                },
                {
                    "id": "record_id",
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                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
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                },
                {
                    "id": "date_time_posted",
                    "description": "2006-11-09 10:20:15"
                },
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                    "id": "approved",
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                },
                {
                    "id": "date_time_modified",
                    "description": "2006-11-09 10:20:15"
                }
            ]
        },
        {
            "accession": "UNIMOD:1047",
            "name": "Ala->Xle",
            "definition": "Ala->Leu/Ile substitution.",
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                {
                    "id": "delta_composition",
                    "description": "H(6) C(3)"
                },
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                },
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                    "id": "group_of_poster",
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                    "id": "spec_1_hidden",
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                },
                {
                    "id": "spec_1_site",
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                },
                {
                    "id": "spec_1_classification",
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                },
                {
                    "id": "record_id",
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                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "42.04695"
                },
                {
                    "id": "date_time_posted",
                    "description": "2011-06-20 16:57:10"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-06-21 15:12:27"
                }
            ]
        },
        {
            "accession": "UNIMOD:2",
            "name": "Amidated",
            "definition": "Amidation.",
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                {
                    "id": "delta_composition",
                    "description": "H N O(-1)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "spec_2_misc_notes",
                    "description": "MS/MS experiments of mass spectrometric c-ions (MS^3) can be used for protein identification by library searching. T3-sequencing is such a technique (see reference). Search engines must recognize this as a virtual modification."
                },
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                    "id": "username_of_poster",
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                },
                {
                    "id": "delta_avge_mass",
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                },
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                    "id": "group_of_poster",
                    "description": "admin"
                },
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                    "id": "spec_1_site",
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                    "id": "spec_1_classification",
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                },
                {
                    "id": "spec_2_group",
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                },
                {
                    "id": "spec_2_position",
                    "description": "Any C-term"
                },
                {
                    "id": "spec_2_classification",
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                },
                {
                    "id": "delta_mono_mass",
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                },
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                    "id": "spec_1_hidden",
                    "description": "0"
                },
                {
                    "id": "spec_2_site",
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                },
                {
                    "id": "record_id",
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                },
                {
                    "id": "spec_1_position",
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                },
                {
                    "id": "date_time_posted",
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                },
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                {
                    "id": "date_time_modified",
                    "description": "2010-06-28 10:52:25"
                }
            ]
        },
        {
            "accession": "UNIMOD:141",
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            "definition": "Amidination of lysines or N-terminal amines with methyl acetimidate.",
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                    "id": "delta_composition",
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                },
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                    "id": "username_of_poster",
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                },
                {
                    "id": "delta_avge_mass",
                    "description": "41.0519"
                },
                {
                    "id": "group_of_poster",
                    "description": "users"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "spec_2_group",
                    "description": "2"
                },
                {
                    "id": "spec_2_position",
                    "description": "Any N-term"
                },
                {
                    "id": "spec_2_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "41.026549"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "N-term"
                },
                {
                    "id": "record_id",
                    "description": "141"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "date_time_posted",
                    "description": "2003-09-25 11:04:41"
                },
                {
                    "id": "approved",
                    "description": "1"
                },
                {
                    "id": "date_time_modified",
                    "description": "2006-10-15 18:32:25"
                }
            ]
        },
        {
            "accession": "UNIMOD:440",
            "name": "Amidino",
            "definition": "Amidino.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(2) C N(2)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "42.04"
                },
                {
                    "id": "group_of_poster",
                    "description": "admin"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "C"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Post-translational"
                },
                {
                    "id": "record_id",
                    "description": "440"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "42.021798"
                },
                {
                    "id": "date_time_posted",
                    "description": "2005-10-15 20:49:10"
                },
                {
                    "id": "approved",
                    "description": "1"
                },
                {
                    "id": "date_time_modified",
                    "description": "2006-10-15 19:58:03"
                }
            ]
        },
        {
            "accession": "UNIMOD:342",
            "name": "Amino",
            "definition": "Tyrosine oxidation to 2-aminotyrosine.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H N"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "15.0146"
                },
                {
                    "id": "group_of_poster",
                    "description": "admin"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "Y"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "record_id",
                    "description": "342"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "15.010899"
                },
                {
                    "id": "date_time_posted",
                    "description": "2005-09-10 21:18:23"
                },
                {
                    "id": "approved",
                    "description": "1"
                },
                {
                    "id": "date_time_modified",
                    "description": "2006-10-14 10:39:53"
                }
            ]
        },
        {
            "accession": "UNIMOD:385",
            "name": "Ammonia-loss",
            "definition": "Loss of ammonia.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-3) N(-1)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "spec_3_hidden",
                    "description": "0"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "-17.0305"
                },
                {
                    "id": "spec_4_position",
                    "description": "Anywhere"
                },
                {
                    "id": "group_of_poster",
                    "description": "admin"
                },
                {
                    "id": "spec_1_site",
                    "description": "T"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Post-translational"
                },
                {
                    "id": "spec_2_group",
                    "description": "2"
                },
                {
                    "id": "spec_2_position",
                    "description": "Protein N-term"
                },
                {
                    "id": "spec_4_site",
                    "description": "N"
                },
                {
                    "id": "spec_2_classification",
                    "description": "Post-translational"
                },
                {
                    "id": "spec_3_position",
                    "description": "Any N-term"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "-17.026549"
                },
                {
                    "id": "spec_4_misc_notes",
                    "description": "N-Succinimide"
                },
                {
                    "id": "spec_3_misc_notes",
                    "description": "Pyro-carbamidomethyl as a delta from Carbamidomethyl-Cys"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_4_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "S"
                },
                {
                    "id": "spec_3_classification",
                    "description": "Artefact"
                },
                {
                    "id": "record_id",
                    "description": "385"
                },
                {
                    "id": "spec_3_site",
                    "description": "C"
                },
                {
                    "id": "spec_1_position",
                    "description": "Protein N-term"
                },
                {
                    "id": "spec_4_group",
                    "description": "4"
                },
                {
                    "id": "spec_4_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "date_time_posted",
                    "description": "2005-10-11 18:00:01"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2007-07-15 20:11:01"
                },
                {
                    "id": "spec_3_group",
                    "description": "3"
                }
            ]
        },
        {
            "accession": "UNIMOD:989",
            "name": "Ammonium",
            "definition": "Replacement of proton with ammonium ion.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(3) N"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "BThomas"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "17.0305"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_site",
                    "description": "C-term"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Artefact"
                },
                {
                    "id": "spec_2_group",
                    "description": "2"
                },
                {
                    "id": "spec_2_position",
                    "description": "Anywhere"
                },
                {
                    "id": "spec_2_classification",
                    "description": "Artefact"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "17.026549"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "E"
                },
                {
                    "id": "record_id",
                    "description": "989"
                },
                {
                    "id": "spec_1_position",
                    "description": "Any C-term"
                },
                {
                    "id": "date_time_posted",
                    "description": "2010-05-18 10:32:03"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2010-06-04 15:08:34"
                }
            ]
        }
    ]
}