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                {
                    "id": "spec_1_classification",
                    "description": "Artefact"
                },
                {
                    "id": "spec_2_group",
                    "description": "2"
                },
                {
                    "id": "spec_2_position",
                    "description": "Any C-term"
                },
                {
                    "id": "spec_2_classification",
                    "description": "Artefact"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "23.958063"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "C-term"
                },
                {
                    "id": "record_id",
                    "description": "1910"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "date_time_posted",
                    "description": "2017-09-05 17:13:59"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2017-09-05 17:13:59"
                }
            ]
        },
        {
            "accession": "UNIMOD:1911",
            "name": "Xlink:DMP[139]",
            "definition": "Ammonia quenched monolink of DMP crosslinker.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(13) C(7) N(3)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "139.1982"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "spec_2_group",
                    "description": "2"
                },
                {
                    "id": "spec_2_position",
                    "description": "Protein N-term"
                },
                {
                    "id": "spec_2_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "139.110947"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "N-term"
                },
                {
                    "id": "record_id",
                    "description": "1911"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "date_time_posted",
                    "description": "2017-09-06 10:03:30"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2017-09-06 10:03:30"
                }
            ]
        },
        {
            "accession": "UNIMOD:1912",
            "name": "Xlink:DMP[122]",
            "definition": "Intact DMP crosslinker.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(10) C(7) N(2)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "122.1677"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "spec_2_group",
                    "description": "2"
                },
                {
                    "id": "spec_2_position",
                    "description": "Protein N-term"
                },
                {
                    "id": "spec_2_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "122.084398"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "N-term"
                },
                {
                    "id": "record_id",
                    "description": "1912"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "date_time_posted",
                    "description": "2017-09-06 10:04:39"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2017-09-06 10:04:39"
                }
            ]
        },
        {
            "accession": "UNIMOD:1913",
            "name": "glyoxalAGE",
            "definition": "Glyoxal-derived AGE.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-2) C(2)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "mlefers"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "22.0055"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "R"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Post-translational"
                },
                {
                    "id": "record_id",
                    "description": "1913"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "21.98435"
                },
                {
                    "id": "date_time_posted",
                    "description": "2017-10-05 13:54:48"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2017-11-08 17:25:30"
                }
            ]
        },
        {
            "accession": "UNIMOD:1914",
            "name": "Met->AspSA",
            "definition": "Methionine oxidation to aspartic semialdehyde.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-4) C(-1) O S(-1)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "-32.1081"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "M"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "record_id",
                    "description": "1914"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "-32.008456"
                },
                {
                    "id": "date_time_posted",
                    "description": "2017-10-06 15:35:18"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2017-10-06 15:37:35"
                }
            ]
        },
        {
            "accession": "UNIMOD:1915",
            "name": "Decarboxylation",
            "definition": "Decarboxylation.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-2) C(-1) O(-1)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "-30.026"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_site",
                    "description": "D"
                },
                {
                    "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": "-30.010565"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "E"
                },
                {
                    "id": "record_id",
                    "description": "1915"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "date_time_posted",
                    "description": "2017-10-06 15:40:31"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2017-10-06 15:40:31"
                }
            ]
        },
        {
            "accession": "UNIMOD:1916",
            "name": "Aspartylurea",
            "definition": "Aspartylurea.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-2) C(-1) N(-2) O(2)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "-10.0412"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "H"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "record_id",
                    "description": "1916"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "-10.031969"
                },
                {
                    "id": "date_time_posted",
                    "description": "2017-10-06 15:43:52"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2017-10-06 15:43:52"
                }
            ]
        },
        {
            "accession": "UNIMOD:1917",
            "name": "Formylasparagine",
            "definition": "In Bachi as Formylaspargine (typo?).",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-1) C(-1) N(-1) O(2)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "4.9735"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "H"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "record_id",
                    "description": "1917"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "4.97893"
                },
                {
                    "id": "date_time_posted",
                    "description": "2017-10-06 16:01:29"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2017-11-02 17:23:35"
                }
            ]
        },
        {
            "accession": "UNIMOD:1918",
            "name": "Carbonyl",
            "definition": "Aldehyde and ketone modifications.",
            "additional_data": [
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "spec_5_group",
                    "description": "5"
                },
                {
                    "id": "spec_4_position",
                    "description": "Anywhere"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_site",
                    "description": "A"
                },
                {
                    "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": "13.979265"
                },
                {
                    "id": "spec_6_site",
                    "description": "R"
                },
                {
                    "id": "spec_7_group",
                    "description": "7"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_4_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "E"
                },
                {
                    "id": "spec_3_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "spec_5_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "spec_5_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_6_position",
                    "description": "Anywhere"
                },
                {
                    "id": "spec_3_site",
                    "description": "I"
                },
                {
                    "id": "spec_7_position",
                    "description": "Anywhere"
                },
                {
                    "id": "spec_4_group",
                    "description": "4"
                },
                {
                    "id": "date_time_posted",
                    "description": "2017-10-06 16:09:53"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "spec_3_group",
                    "description": "3"
                },
                {
                    "id": "delta_composition",
                    "description": "H(-2) O"
                },
                {
                    "id": "spec_7_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "spec_3_hidden",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "13.9835"
                },
                {
                    "id": "spec_8_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "spec_8_group",
                    "description": "8"
                },
                {
                    "id": "spec_4_site",
                    "description": "L"
                },
                {
                    "id": "spec_5_site",
                    "description": "Q"
                },
                {
                    "id": "spec_7_site",
                    "description": "S"
                },
                {
                    "id": "spec_8_position",
                    "description": "Anywhere"
                },
                {
                    "id": "spec_5_position",
                    "description": "Anywhere"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_8_site",
                    "description": "V"
                },
                {
                    "id": "record_id",
                    "description": "1918"
                },
                {
                    "id": "spec_7_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "spec_6_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_4_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "spec_6_group",
                    "description": "6"
                },
                {
                    "id": "spec_8_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_6_classification",
                    "description": "Chemical derivative"
                },
                {
                    "id": "date_time_modified",
                    "description": "2017-10-06 16:12:57"
                }
            ]
        }
    ]
}