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                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "1153"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "55.038828"
                },
                {
                    "id": "date_time_posted",
                    "description": "2011-06-21 16:32:38"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-06-21 16:32:38"
                }
            ]
        },
        {
            "accession": "UNIMOD:1154",
            "name": "Met->Tyr",
            "definition": "Met->Tyr substitution.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "C(4) O S(-1)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "31.9772"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "M"
                },
                {
                    "id": "spec_1_classification",
                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "1154"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "32.022844"
                },
                {
                    "id": "date_time_posted",
                    "description": "2011-06-21 16:33:00"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-06-21 16:33:00"
                }
            ]
        },
        {
            "accession": "UNIMOD:1155",
            "name": "Asn->Ala",
            "definition": "Asn->Ala substitution.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-1) C(-1) N(-1) O(-1)"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "-43.0247"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "N"
                },
                {
                    "id": "spec_1_classification",
                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "1155"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "-43.005814"
                },
                {
                    "id": "date_time_posted",
                    "description": "2011-06-21 16:36:38"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-06-21 16:36:38"
                }
            ]
        },
        {
            "accession": "UNIMOD:1156",
            "name": "Asn->Cys",
            "definition": "Asn->Cys substitution.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H(-1) C(-1) N(-1) O(-1) S"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "-10.9597"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "N"
                },
                {
                    "id": "spec_1_classification",
                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "1156"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "-11.033743"
                },
                {
                    "id": "date_time_posted",
                    "description": "2011-06-21 16:37:03"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-06-21 16:37:03"
                }
            ]
        },
        {
            "accession": "UNIMOD:1157",
            "name": "Asn->Glu",
            "definition": "Asn->Glu substitution.",
            "additional_data": [
                {
                    "id": "delta_composition",
                    "description": "H C N(-1) O"
                },
                {
                    "id": "spec_1_group",
                    "description": "1"
                },
                {
                    "id": "username_of_poster",
                    "description": "unimod"
                },
                {
                    "id": "delta_avge_mass",
                    "description": "15.0113"
                },
                {
                    "id": "group_of_poster",
                    "description": ""
                },
                {
                    "id": "spec_1_hidden",
                    "description": "1"
                },
                {
                    "id": "spec_1_site",
                    "description": "N"
                },
                {
                    "id": "spec_1_classification",
                    "description": "AA substitution"
                },
                {
                    "id": "record_id",
                    "description": "1157"
                },
                {
                    "id": "spec_1_position",
                    "description": "Anywhere"
                },
                {
                    "id": "delta_mono_mass",
                    "description": "14.999666"
                },
                {
                    "id": "date_time_posted",
                    "description": "2011-06-21 16:37:26"
                },
                {
                    "id": "approved",
                    "description": "0"
                },
                {
                    "id": "date_time_modified",
                    "description": "2011-06-21 16:37:26"
                }
            ]
        }
    ]
}