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                {
                    "id": "delta_mono_mass",
                    "description": "106.041865"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "K"
                },
                {
                    "id": "record_id",
                    "description": "1254"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "date_time_posted",
                    "description": "2011-06-30 19:24:11"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-07-09 09:17:45"
                }
            ]
        },
        {
            "accession": "UNIMOD:1825",
            "name": "RNPXL",
            "definition": "Simulate peptide-RNA conjugates.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(13) C(9) N(2) O(9) P"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "324.1813"
                },
                {
                    "id": "spec_1_neutral_loss_325_composition",
                    "description": "H(13) C(9) N(2) O(9) P"
                },
                {
                    "id": "spec_2_neutral_loss_325_flag",
                    "description": "false"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Other"
                },
                {
                    "id": "spec_2_group",
                    "description": "2"
                },
                {
                    "id": "spec_2_position",
                    "description": "Any N-term"
                },
                {
                    "id": "spec_2_classification",
                    "description": "Other"
                },
                {
                    "id": "spec_1_neutral_loss_325_flag",
                    "description": "false"
                },
                {
                    "id": "spec_2_neutral_loss_325_avge_mass",
                    "description": "324.1813"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "324.035867"
                },
                {
                    "id": "spec_1_neutral_loss_325_avge_mass",
                    "description": "324.1813"
                },
                {
                    "id": "spec_2_neutral_loss_325_composition",
                    "description": "H(13) C(9) N(2) O(9) P"
                },
                {
                    "id": "spec_1_neutral_loss_325_mono_mass",
                    "description": "324.035867"
                },
                {
                    "id": "spec_2_neutral_loss_325_mono_mass",
                    "description": "324.035867"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "R"
                },
                {
                    "id": "record_id",
                    "description": "1825"
                },
                {
                    "id": "spec_1_position",
                    "description": "Any N-term"
                },
                {
                    "id": "date_time_posted",
                    "description": "2016-06-05 14:23:58"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2016-07-01 11:23:46"
                }
            ]
        },
        {
            "accession": "UNIMOD:380",
            "name": "Retinylidene",
            "definition": "Retinal.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(26) C(20)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "266.4204"
                },
                {
                    "id": "group_of_poster",
                    "description": "admin"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "K"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Post-translational"
                },
                {
                    "id": "record_id",
                    "description": "380"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "266.203451"
                },
                {
                    "id": "date_time_posted",
                    "description": "2005-10-07 22:27:27"
                },
                {
                    "id": "approved",
                    "description": "1"
                },
                {
                    "id": "date_time_modified",
                    "description": "2006-10-16 15:47:14"
                }
            ]
        },
        {
            "accession": "UNIMOD:2044",
            "name": "RBS-ID_Uridine",
            "definition": "RNA-protein UVC-crosslinked, hydrofluoride-digested uridine adduct.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(12) C(9) N(2) O(6)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "jwbaebio"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "244.2014"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "Y"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Other"
                },
                {
                    "id": "spec_1_misc_notes",
                    "description": "Crosslink to all 20 amino acids. Not C-term (Missed cleavage). Partial in-source fragmentation to Uracil (loss of ribose): H(4) C(4) N(2) O(2)"
                },
                {
                    "id": "record_id",
                    "description": "2044"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "244.069536"
                },
                {
                    "id": "date_time_posted",
                    "description": "2021-06-02 01:11:04"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2021-11-20 23:24:33"
                }
            ]
        },
        {
            "accession": "UNIMOD:392",
            "name": "Quinone",
            "definition": "Quinone.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-2) O(2)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "29.9829"
                },
                {
                    "id": "group_of_poster",
                    "description": "admin"
                },
                {
                    "id": "spec_1_site",
                    "description": "Y"
                },
                {
                    "id": "spec_1_classification",
                    "description": "Post-translational"
                },
                {
                    "id": "spec_2_group",
                    "description": "2"
                },
                {
                    "id": "spec_2_position",
                    "description": "Anywhere"
                },
                {
                    "id": "spec_2_classification",
                    "description": "Post-translational"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "29.974179"
                },
                {
                    "id": "spec_2_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_2_site",
                    "description": "W"
                },
                {
                    "id": "record_id",
                    "description": "392"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "date_time_posted",
                    "description": "2005-10-11 18:56:28"
                },
                {
                    "id": "approved",
                    "description": "1"
                },
                {
                    "id": "date_time_modified",
                    "description": "2006-10-15 18:03:47"
                }
            ]
        }
    ]
}