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                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "L"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Isotopic label"
                },
                {
                    "id": "record_id",
                    "description": "1299"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "10.062767"
                },
                {
                    "id": "date_time_posted",
                    "description": "2011-11-21 14:51:01"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-11-21 14:51:01"
                }
            ]
        },
        {
            "accession": "UNIMOD:262",
            "name": "Label:2H(3)",
            "definition": "Trideuteration.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-3) 2H(3)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "mmolloy"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "3.0185"
                },
                {
                    "id": "group_of_poster",
                    "description": "users"
                },
                {
                    "id": "spec_1_site",
                    "description": "L"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Isotopic label"
                },
                {
                    "id": "spec_2_group",
                    "description": "2"
                },
                {
                    "id": "spec_2_position",
                    "description": "Anywhere"
                },
                {
                    "id": "spec_2_classification",
                    "description": "Isotopic label"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "3.01883"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "M"
                },
                {
                    "id": "spec_1_misc_notes",
                    "description": "for SILAC expt"
                },
                {
                    "id": "record_id",
                    "description": "262"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "date_time_posted",
                    "description": "2004-09-29 08:52:01"
                },
                {
                    "id": "approved",
                    "description": "1"
                },
                {
                    "id": "date_time_modified",
                    "description": "2013-02-22 12:42:11"
                }
            ]
        },
        {
            "accession": "UNIMOD:1370",
            "name": "Label:2H(3)+Oxidation",
            "definition": "Oxidised 2H(3) labelled Methionine.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-3) 2H(3) O"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "Plank"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "19.0179"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "M"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Isotopic label"
                },
                {
                    "id": "record_id",
                    "description": "1370"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "19.013745"
                },
                {
                    "id": "date_time_posted",
                    "description": "2013-02-14 16:36:56"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2013-02-22 12:39:51"
                }
            ]
        },
        {
            "accession": "UNIMOD:481",
            "name": "Label:2H(4)",
            "definition": "4,4,5,5-D4 Lysine.",
            "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": "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": "Anywhere"
                },
                {
                    "id": "spec_2_classification",
                    "description": "Isotopic label"
                },
                {
                    "id": "spec_3_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "4.025107"
                },
                {
                    "id": "spec_4_misc_notes",
                    "description": "485845 Aldrich"
                },
                {
                    "id": "spec_3_misc_notes",
                    "description": "Cambridge Labs DLM-451"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_4_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "F"
                },
                {
                    "id": "spec_3_classification",
                    "description": "Isotopic label"
                },
                {
                    "id": "spec_5_classification",
                    "description": "Isotopic label"
                },
                {
                    "id": "spec_5_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_3_site",
                    "description": "Y"
                },
                {
                    "id": "spec_4_group",
                    "description": "4"
                },
                {
                    "id": "date_time_posted",
                    "description": "2006-02-20 11:44:19"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "spec_3_group",
                    "description": "3"
                },
                {
                    "id": "delta_composition",
                    "description": "H(-4) 2H(4)"
                },
                {
                    "id": "spec_3_hidden",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "yunwah"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "4.0246"
                },
                {
                    "id": "spec_4_site",
                    "description": "A"
                },
                {
                    "id": "spec_5_site",
                    "description": "U"
                },
                {
                    "id": "spec_5_position",
                    "description": "Anywhere"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "record_id",
                    "description": "481"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "spec_4_classification",
                    "description": "Isotopic label"
                },
                {
                    "id": "date_time_modified",
                    "description": "2019-01-10 15:45:13"
                }
            ]
        },
        {
            "accession": "UNIMOD:1300",
            "name": "Label:2H(4)13C(1)",
            "definition": "Label:2H(4)13C(1).",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-4) 2H(4) C(-1) 13C"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "5.0173"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "R"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Isotopic label"
                },
                {
                    "id": "record_id",
                    "description": "1300"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "5.028462"
                },
                {
                    "id": "date_time_posted",
                    "description": "2011-11-21 14:52:54"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-11-21 14:52:54"
                }
            ]
        },
        {
            "accession": "UNIMOD:834",
            "name": "Label:2H(4)+Acetyl",
            "definition": "Acetyl 4,4,5,5-D4 Lysine.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-2) 2H(4) C(2) O"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "Raghothama"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "46.0613"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Isotopic label"
                },
                {
                    "id": "spec_1_misc_notes",
                    "description": "Both isotopiclabel and post translational mod"
                },
                {
                    "id": "record_id",
                    "description": "834"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "46.035672"
                },
                {
                    "id": "date_time_posted",
                    "description": "2008-03-24 17:25:15"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2008-04-02 10:17:08"
                }
            ]
        },
        {
            "accession": "UNIMOD:853",
            "name": "Label:2H(4)+GG",
            "definition": "Ubiquitination 2H4 lysine.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(2) 2H(4) C(4) N(2) O(2)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "Raghothama"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "118.1273"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Post-translational"
                },
                {
                    "id": "record_id",
                    "description": "853"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "118.068034"
                },
                {
                    "id": "date_time_posted",
                    "description": "2008-06-27 14:28:36"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2014-07-09 16:52:49"
                }
            ]
        },
        {
            "accession": "UNIMOD:1403",
            "name": "Label:2H(6)15N(1)",
            "definition": "Label:2H(6)15N(1).",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-6) 2H(6) N(-1) 15N"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "7.0304"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "P"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Isotopic label"
                },
                {
                    "id": "record_id",
                    "description": "1403"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "7.034695"
                },
                {
                    "id": "date_time_posted",
                    "description": "2014-04-16 12:19:06"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2014-04-16 12:19:06"
                }
            ]
        },
        {
            "accession": "UNIMOD:1402",
            "name": "Label:2H(7)15N(4)",
            "definition": "Label:2H(7)15N(4).",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-7) 2H(7) N(-4) 15N(4)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "11.0168"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "R"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Isotopic label"
                },
                {
                    "id": "record_id",
                    "description": "1402"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "11.032077"
                },
                {
                    "id": "date_time_posted",
                    "description": "2014-04-16 12:16:45"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2014-04-16 12:16:45"
                }
            ]
        },
        {
            "accession": "UNIMOD:696",
            "name": "Label:2H(9)13C(6)15N(2)",
            "definition": "13C(6) 15N(2) (D)9 SILAC label.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-9) 2H(9) C(-6) 13C(6) N(-2) 15N(2)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "striker2000"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "16.9982"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Isotopic label"
                },
                {
                    "id": "spec_1_misc_notes",
                    "description": "Used in SILAC experiment"
                },
                {
                    "id": "record_id",
                    "description": "696"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "17.07069"
                },
                {
                    "id": "date_time_posted",
                    "description": "2006-12-01 22:36:25"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2007-08-22 18:48:35"
                }
            ]
        },
        {
            "accession": "UNIMOD:2114",
            "name": "Lactylation",
            "definition": "Lactylation(Lac).",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(4) C(3) O(2)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "cpu1107"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "72.0627"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Post-translational"
                },
                {
                    "id": "record_id",
                    "description": "2114"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "72.021129"
                },
                {
                    "id": "date_time_posted",
                    "description": "2024-06-24 10:56:15"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2024-08-09 09:54:27"
                }
            ]
        }
    ]
}