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                {
                    "id": "delta_composition",
                    "description": "H(55) C(37) N(11) O(12)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "oosula"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "845.8991"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Other"
                },
                {
                    "id": "spec_1_misc_notes",
                    "description": "This peptide is generated from a formic acid digest"
                },
                {
                    "id": "record_id",
                    "description": "932"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "845.403166"
                },
                {
                    "id": "date_time_posted",
                    "description": "2009-09-24 16:11:11"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2010-02-02 18:25:30"
                }
            ]
        },
        {
            "accession": "UNIMOD:933",
            "name": "VIEVYQEQTGG",
            "definition": "SUMOylation by SUMO-1 (formic acid cleavage).",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(81) C(53) N(13) O(19)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "oosula"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "1204.2859"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Other"
                },
                {
                    "id": "record_id",
                    "description": "933"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "1203.577168"
                },
                {
                    "id": "date_time_posted",
                    "description": "2009-09-24 16:15:34"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2009-10-02 18:31:51"
                }
            ]
        },
        {
            "accession": "UNIMOD:934",
            "name": "AMTzHexNAc2",
            "definition": "Photocleavable Biotin + GalNAz on O-GlcNAc.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(30) C(19) N(6) O(10)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "spec_3_hidden",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "mskim"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "502.4757"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_site",
                    "description": "N"
                },
                {
                    "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": "spec_3_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "502.202341"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "S"
                },
                {
                    "id": "spec_3_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "record_id",
                    "description": "934"
                },
                {
                    "id": "spec_3_site",
                    "description": "T"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "date_time_posted",
                    "description": "2009-10-08 18:05:00"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2010-10-03 13:45:56"
                },
                {
                    "id": "spec_3_group",
                    "description": "3"
                }
            ]
        },
        {
            "accession": "UNIMOD:935",
            "name": "Atto495Maleimide",
            "definition": "High molecular absorption maleimide label for proteins.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(32) C(27) N(5) O(3)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "anikolakakis"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "474.5747"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "C"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "record_id",
                    "description": "935"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "474.250515"
                },
                {
                    "id": "date_time_posted",
                    "description": "2009-10-14 18:48:56"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2009-10-16 14:34:17"
                }
            ]
        },
        {
            "accession": "UNIMOD:936",
            "name": "Chlorination",
            "definition": "Chlorination of tyrosine residues.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-1) Cl"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "Bryan"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "34.4451"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_site",
                    "description": "Y"
                },
                {
                    "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": "33.961028"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "W"
                },
                {
                    "id": "record_id",
                    "description": "936"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "date_time_posted",
                    "description": "2009-10-15 17:07:41"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2017-11-08 16:03:56"
                }
            ]
        },
        {
            "accession": "UNIMOD:937",
            "name": "dichlorination",
            "definition": "Dichlorination.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-2) Cl(2)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "Bryan"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "68.8901"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_site",
                    "description": "Y"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Artefact"
                },
                {
                    "id": "spec_2_group",
                    "description": "2"
                },
                {
                    "id": "spec_2_position",
                    "description": "Anywhere"
                },
                {
                    "id": "spec_2_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "67.922055"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "C"
                },
                {
                    "id": "record_id",
                    "description": "937"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "date_time_posted",
                    "description": "2009-10-15 17:12:42"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2014-05-19 10:13:24"
                }
            ]
        },
        {
            "accession": "UNIMOD:938",
            "name": "AROD",
            "definition": "Cysteine modifier.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(52) C(35) N(10) O(9) S(2)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "hbromage"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "820.979"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "C"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "record_id",
                    "description": "938"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "820.336015"
                },
                {
                    "id": "date_time_posted",
                    "description": "2009-10-15 19:27:20"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2009-10-16 14:41:49"
                }
            ]
        },
        {
            "accession": "UNIMOD:939",
            "name": "Cys->methylaminoAla",
            "definition": "Carbamidomethylated Cys that undergoes beta-elimination and Michael addition of methylamine.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(3) C N S(-1)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "cbatthya"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "-3.0238"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "C"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "record_id",
                    "description": "939"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "-2.945522"
                },
                {
                    "id": "date_time_posted",
                    "description": "2009-10-16 13:50:33"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2009-10-16 14:44:00"
                }
            ]
        }
    ]
}