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                    "id": "delta_composition",
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                    "id": "delta_avge_mass",
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                {
                    "id": "date_time_modified",
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        },
        {
            "accession": "UNIMOD:9",
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                    "id": "delta_composition",
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                    "id": "delta_avge_mass",
                    "description": "338.4682"
                },
                {
                    "id": "group_of_poster",
                    "description": "users"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Isotopic label"
                },
                {
                    "id": "spec_2_group",
                    "description": "2"
                },
                {
                    "id": "spec_2_position",
                    "description": "Any N-term"
                },
                {
                    "id": "spec_2_classification",
                    "description": "Isotopic label"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "338.177647"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "N-term"
                },
                {
                    "id": "record_id",
                    "description": "90"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "date_time_posted",
                    "description": "2002-11-25 16:12:50"
                },
                {
                    "id": "approved",
                    "description": "1"
                },
                {
                    "id": "date_time_modified",
                    "description": "2006-10-16 15:58:19"
                }
            ]
        },
        {
            "accession": "UNIMOD:901",
            "name": "4AcAllylGal",
            "definition": "2,3,4,6-tetra-O-Acetyl-1-allyl-alpha-D-galactopyranoside modification of cysteine.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(24) C(17) O(9)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "paolo.nanni"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "372.3671"
                },
                {
                    "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": "901"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "372.142033"
                },
                {
                    "id": "date_time_posted",
                    "description": "2009-03-06 16:08:43"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2014-06-23 14:32:00"
                }
            ]
        },
        {
            "accession": "UNIMOD:902",
            "name": "DimethylArsino",
            "definition": "Reaction with dimethylarsinous (AsIII) acid.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(5) C(2) As"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "dashford"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "103.9827"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "C"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Post-translational"
                },
                {
                    "id": "record_id",
                    "description": "902"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "103.960719"
                },
                {
                    "id": "date_time_posted",
                    "description": "2009-03-09 17:03:27"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2009-03-13 15:59:22"
                }
            ]
        },
        {
            "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"
                }
            ]
        },
        {
            "accession": "UNIMOD:904",
            "name": "Phe->CamCys",
            "definition": "Phe->Cys substitution and carbamidomethylation.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-1) C(-4) N O S"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "hooverdm"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "13.0204"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "F"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Pre-translational"
                },
                {
                    "id": "record_id",
                    "description": "904"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "12.962234"
                },
                {
                    "id": "date_time_posted",
                    "description": "2009-04-17 14:49:02"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2009-07-13 18:16:29"
                }
            ]
        },
        {
            "accession": "UNIMOD:905",
            "name": "Leu->MetOx",
            "definition": "Leu->Met substitution and sulfoxidation.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-2) C(-1) O S"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "hooverdm"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "34.0378"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "L"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Pre-translational"
                },
                {
                    "id": "record_id",
                    "description": "905"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "33.951335"
                },
                {
                    "id": "date_time_posted",
                    "description": "2009-04-17 14:50:35"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2009-05-01 16:47:06"
                }
            ]
        },
        {
            "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:907",
            "name": "Galactosyl",
            "definition": "Gluconoylation.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "O Hex"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "zientek"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "178.14"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Other glycosylation"
                },
                {
                    "id": "spec_2_group",
                    "description": "2"
                },
                {
                    "id": "spec_2_position",
                    "description": "Any N-term"
                },
                {
                    "id": "spec_2_classification",
                    "description": "Other glycosylation"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "178.047738"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "N-term"
                },
                {
                    "id": "record_id",
                    "description": "907"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "date_time_posted",
                    "description": "2009-04-21 18:11:24"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2015-05-07 11:02:58"
                }
            ]
        }
    ]
}