{"count":1543,"next":"https://cinder.proteo.info/api/unimod/?format=json&limit=20&offset=1000&ordering=name","previous":"https://cinder.proteo.info/api/unimod/?format=json&limit=20&offset=960&ordering=name","results":[{"accession":"UNIMOD:991","name":"ISD_z+2_ion","definition":"ISD (z+2)-series.","additional_data":[{"id":"delta_composition","description":"H(-1) N(-1)"},{"id":"spec_1_group","description":"1"},{"id":"username_of_poster","description":"suckau"},{"id":"delta_avge_mass","description":"-15.0146"},{"id":"group_of_poster","description":""},{"id":"spec_1_hidden","description":"1"},{"id":"spec_1_site","description":"N-term"},{"id":"spec_1_classification","description":"Artefact"},{"id":"spec_1_misc_notes","description":"this is a virtual modification, as it only accounts for the structure of the MS/MS fragment as it occurs in Top-Down MS/MS analyses. This must be accounted for in MS³-analysis of z+2 ions"},{"id":"record_id","description":"991"},{"id":"spec_1_position","description":"Any N-term"},{"id":"delta_mono_mass","description":"-15.010899"},{"id":"date_time_posted","description":"2010-06-08 09:42:52"},{"id":"approved","description":"0"},{"id":"date_time_modified","description":"2024-08-12 11:27:50"}]},{"accession":"UNIMOD:363","name":"Isopropylphospho","definition":"O-Isopropylphosphorylation.","additional_data":[{"id":"delta_composition","description":"H(7) C(3) O(3) P"},{"id":"spec_1_group","description":"1"},{"id":"spec_3_hidden","description":"1"},{"id":"username_of_poster","description":"lmschopfer"},{"id":"delta_avge_mass","description":"122.0596"},{"id":"group_of_poster","description":"users"},{"id":"spec_1_site","description":"S"},{"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":"122.013281"},{"id":"spec_2_hidden","description":"1"},{"id":"spec_1_hidden","description":"1"},{"id":"spec_2_site","description":"T"},{"id":"spec_3_classification","description":"Chemical derivative"},{"id":"record_id","description":"363"},{"id":"spec_3_site","description":"Y"},{"id":"spec_1_position","description":"Anywhere"},{"id":"date_time_posted","description":"2005-09-14 18:08:20"},{"id":"approved","description":"0"},{"id":"date_time_modified","description":"2007-01-15 15:25:45"},{"id":"spec_3_group","description":"3"}]},{"accession":"UNIMOD:2108","name":"Isovaleryl","definition":"Isovalerylation.","additional_data":[{"id":"delta_composition","description":"H(8) C(5) O"},{"id":"spec_1_group","description":"1"},{"id":"username_of_poster","description":"JakobB"},{"id":"delta_avge_mass","description":"84.1164"},{"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":"2108"},{"id":"spec_1_position","description":"Anywhere"},{"id":"delta_mono_mass","description":"84.057515"},{"id":"date_time_posted","description":"2024-06-22 12:24:23"},{"id":"approved","description":"0"},{"id":"date_time_modified","description":"2024-06-28 10:55:54"}]},{"accession":"UNIMOD:2086","name":"iST-NHS specific cysteine modification","definition":"Preomics iST-NHS Kit specific cysteine modification.","additional_data":[{"id":"delta_composition","description":"H(11) C(6) N O"},{"id":"spec_1_group","description":"1"},{"id":"username_of_poster","description":"dzolg"},{"id":"delta_avge_mass","description":"113.1576"},{"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":"2086"},{"id":"spec_1_position","description":"Anywhere"},{"id":"delta_mono_mass","description":"113.084064"},{"id":"date_time_posted","description":"2023-12-04 11:10:14"},{"id":"approved","description":"0"},{"id":"date_time_modified","description":"2024-07-08 16:54:51"}]},{"accession":"UNIMOD:2117","name":"Itaconatyl","definition":"Itaconatylation.","additional_data":[{"id":"delta_composition","description":"H(6) C(5) O(4)"},{"id":"spec_1_group","description":"1"},{"id":"username_of_poster","description":"JakobB"},{"id":"delta_avge_mass","description":"130.0987"},{"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":"2117"},{"id":"spec_1_position","description":"Anywhere"},{"id":"delta_mono_mass","description":"130.026609"},{"id":"date_time_posted","description":"2024-06-24 20:02:30"},{"id":"approved","description":"0"},{"id":"date_time_modified","description":"2024-08-09 09:55:04"}]},{"accession":"UNIMOD:2118","name":"Itaconyl","definition":"Itaconylation.","additional_data":[{"id":"delta_composition","description":"H(4) C(5) O(3)"},{"id":"spec_1_group","description":"1"},{"id":"username_of_poster","description":"JakobB"},{"id":"delta_avge_mass","description":"112.0835"},{"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":"2118"},{"id":"spec_1_position","description":"Anywhere"},{"id":"delta_mono_mass","description":"112.016044"},{"id":"date_time_posted","description":"2024-06-26 14:01:07"},{"id":"approved","description":"0"},{"id":"date_time_modified","description":"2024-08-09 09:55:19"}]},{"accession":"UNIMOD:214","name":"iTRAQ4plex","definition":"Representative mass and accurate mass for 116 & 117.","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":"admin"},{"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":"spec_3_position","description":"Anywhere"},{"id":"delta_mono_mass","description":"144.102063"},{"id":"spec_8_misc_notes","description":"side reaction"},{"id":"spec_6_site","description":"T"},{"id":"spec_4_misc_notes","description":"Very low abundance"},{"id":"spec_3_misc_notes","description":"Low abundance"},{"id":"spec_7_group","description":"7"},{"id":"spec_2_hidden","description":"0"},{"id":"spec_4_hidden","description":"1"},{"id":"spec_2_site","description":"N-term"},{"id":"spec_3_classification","description":"Isotopic label"},{"id":"spec_5_classification","description":"Isotopic label"},{"id":"spec_5_hidden","description":"1"},{"id":"spec_6_position","description":"Anywhere"},{"id":"spec_3_site","description":"Y"},{"id":"spec_7_position","description":"Protein N-term"},{"id":"spec_4_group","description":"4"},{"id":"date_time_posted","description":"2004-06-08 14:04:07"},{"id":"approved","description":"0"},{"id":"spec_3_group","description":"3"},{"id":"delta_composition","description":"H(12) C(4) 13C(3) N 15N O"},{"id":"spec_7_classification","description":"Isotopic label"},{"id":"spec_3_hidden","description":"0"},{"id":"username_of_poster","description":"unimod"},{"id":"delta_avge_mass","description":"144.1544"},{"id":"spec_8_classification","description":"Isotopic label"},{"id":"spec_8_group","description":"8"},{"id":"spec_4_site","description":"H"},{"id":"spec_6_misc_notes","description":"Very low abundance"},{"id":"spec_5_site","description":"S"},{"id":"spec_7_site","description":"N-term"},{"id":"spec_5_misc_notes","description":"Very low abundance"},{"id":"spec_8_position","description":"Anywhere"},{"id":"spec_5_position","description":"Anywhere"},{"id":"spec_1_hidden","description":"0"},{"id":"spec_8_site","description":"C"},{"id":"record_id","description":"214"},{"id":"spec_7_hidden","description":"1"},{"id":"spec_1_position","description":"Anywhere"},{"id":"spec_6_hidden","description":"1"},{"id":"spec_4_classification","description":"Isotopic label"},{"id":"spec_6_group","description":"6"},{"id":"spec_8_hidden","description":"1"},{"id":"spec_6_classification","description":"Isotopic label"},{"id":"date_time_modified","description":"2024-08-12 09:52:54"}]},{"accession":"UNIMOD:532","name":"iTRAQ4plex114","definition":"Accurate mass for 114.","additional_data":[{"id":"delta_composition","description":"H(12) C(5) 13C(2) N(2) 18O"},{"id":"spec_1_group","description":"1"},{"id":"spec_3_hidden","description":"1"},{"id":"username_of_poster","description":"unimod"},{"id":"delta_avge_mass","description":"144.168"},{"id":"spec_4_position","description":"Anywhere"},{"id":"group_of_poster","description":""},{"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_4_site","description":"C"},{"id":"spec_2_classification","description":"Isotopic label"},{"id":"spec_3_position","description":"Anywhere"},{"id":"delta_mono_mass","description":"144.105918"},{"id":"spec_4_misc_notes","description":"side reaction"},{"id":"spec_3_misc_notes","description":"Low abundance"},{"id":"spec_2_hidden","description":"1"},{"id":"spec_1_hidden","description":"1"},{"id":"spec_4_hidden","description":"1"},{"id":"spec_2_site","description":"N-term"},{"id":"spec_3_classification","description":"Isotopic label"},{"id":"record_id","description":"532"},{"id":"spec_3_site","description":"Y"},{"id":"spec_1_position","description":"Anywhere"},{"id":"spec_4_group","description":"4"},{"id":"spec_4_classification","description":"Isotopic label"},{"id":"date_time_posted","description":"2006-10-16 13:46:49"},{"id":"approved","description":"0"},{"id":"date_time_modified","description":"2024-08-12 09:55:37"},{"id":"spec_3_group","description":"3"}]},{"accession":"UNIMOD:533","name":"iTRAQ4plex115","definition":"Accurate mass for 115.","additional_data":[{"id":"delta_composition","description":"H(12) C(6) 13C N 15N 18O"},{"id":"spec_1_group","description":"1"},{"id":"spec_3_hidden","description":"1"},{"id":"username_of_poster","description":"unimod"},{"id":"delta_avge_mass","description":"144.1688"},{"id":"spec_4_position","description":"Anywhere"},{"id":"group_of_poster","description":""},{"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_4_site","description":"C"},{"id":"spec_2_classification","description":"Isotopic label"},{"id":"spec_3_position","description":"Anywhere"},{"id":"delta_mono_mass","description":"144.099599"},{"id":"spec_4_misc_notes","description":"side reaction"},{"id":"spec_3_misc_notes","description":"Low abundance"},{"id":"spec_2_hidden","description":"1"},{"id":"spec_1_hidden","description":"1"},{"id":"spec_4_hidden","description":"1"},{"id":"spec_2_site","description":"N-term"},{"id":"spec_3_classification","description":"Isotopic label"},{"id":"record_id","description":"533"},{"id":"spec_3_site","description":"Y"},{"id":"spec_1_position","description":"Anywhere"},{"id":"spec_4_group","description":"4"},{"id":"spec_4_classification","description":"Isotopic label"},{"id":"date_time_posted","description":"2006-10-16 13:48:16"},{"id":"approved","description":"0"},{"id":"date_time_modified","description":"2024-08-12 09:55:49"},{"id":"spec_3_group","description":"3"}]},{"accession":"UNIMOD:730","name":"iTRAQ8plex","definition":"Representative mass and accurate mass for 113, 114, 116 & 117.","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":"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":"spec_3_position","description":"Anywhere"},{"id":"delta_mono_mass","description":"304.20536"},{"id":"spec_8_misc_notes","description":"side reaction"},{"id":"spec_6_site","description":"T"},{"id":"spec_4_misc_notes","description":"Very low abundance"},{"id":"spec_3_misc_notes","description":"Low abundance"},{"id":"spec_7_group","description":"7"},{"id":"spec_2_hidden","description":"0"},{"id":"spec_4_hidden","description":"1"},{"id":"spec_2_site","description":"N-term"},{"id":"spec_3_classification","description":"Isotopic label"},{"id":"spec_5_classification","description":"Isotopic label"},{"id":"spec_5_hidden","description":"1"},{"id":"spec_6_position","description":"Anywhere"},{"id":"spec_3_site","description":"Y"},{"id":"spec_7_position","description":"Protein N-term"},{"id":"spec_4_group","description":"4"},{"id":"date_time_posted","description":"2007-01-11 09:53:13"},{"id":"approved","description":"0"},{"id":"spec_3_group","description":"3"},{"id":"delta_composition","description":"H(24) C(7) 13C(7) N(3) 15N O(3)"},{"id":"spec_7_classification","description":"Isotopic label"},{"id":"spec_3_hidden","description":"0"},{"id":"username_of_poster","description":"unimod"},{"id":"delta_avge_mass","description":"304.3074"},{"id":"spec_8_classification","description":"Isotopic label"},{"id":"spec_8_group","description":"8"},{"id":"spec_4_site","description":"H"},{"id":"spec_6_misc_notes","description":"Very low abundance"},{"id":"spec_5_site","description":"S"},{"id":"spec_7_site","description":"N-term"},{"id":"spec_5_misc_notes","description":"Very low abundance"},{"id":"spec_8_position","description":"Anywhere"},{"id":"spec_5_position","description":"Anywhere"},{"id":"spec_1_hidden","description":"0"},{"id":"spec_8_site","description":"C"},{"id":"record_id","description":"730"},{"id":"spec_7_hidden","description":"1"},{"id":"spec_1_position","description":"Anywhere"},{"id":"spec_6_hidden","description":"1"},{"id":"spec_4_classification","description":"Isotopic label"},{"id":"spec_6_group","description":"6"},{"id":"spec_8_hidden","description":"1"},{"id":"spec_6_classification","description":"Isotopic label"},{"id":"date_time_modified","description":"2024-08-12 09:56:06"}]},{"accession":"UNIMOD:731","name":"iTRAQ8plex:13C(6)15N(2)","definition":"Accurate mass for 115, 118, 119 & 121.","additional_data":[{"id":"delta_composition","description":"H(24) C(8) 13C(6) N(2) 15N(2) O(3)"},{"id":"spec_1_group","description":"1"},{"id":"spec_3_hidden","description":"1"},{"id":"username_of_poster","description":"unimod"},{"id":"delta_avge_mass","description":"304.3081"},{"id":"spec_4_position","description":"Anywhere"},{"id":"group_of_poster","description":""},{"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_4_site","description":"C"},{"id":"spec_2_classification","description":"Isotopic label"},{"id":"spec_3_position","description":"Anywhere"},{"id":"delta_mono_mass","description":"304.19904"},{"id":"spec_4_misc_notes","description":"side reaction"},{"id":"spec_3_misc_notes","description":"Low abundance"},{"id":"spec_2_hidden","description":"1"},{"id":"spec_1_hidden","description":"1"},{"id":"spec_4_hidden","description":"1"},{"id":"spec_2_site","description":"N-term"},{"id":"spec_3_classification","description":"Isotopic label"},{"id":"record_id","description":"731"},{"id":"spec_3_site","description":"Y"},{"id":"spec_1_position","description":"Anywhere"},{"id":"spec_4_group","description":"4"},{"id":"spec_4_classification","description":"Isotopic label"},{"id":"date_time_posted","description":"2007-01-11 09:56:21"},{"id":"approved","description":"0"},{"id":"date_time_modified","description":"2024-08-12 09:56:28"},{"id":"spec_3_group","description":"3"}]},{"accession":"UNIMOD:862","name":"Label:13C(1)2H(3)","definition":"SILAC.","additional_data":[{"id":"delta_composition","description":"H(-3) 2H(3) C(-1) 13C"},{"id":"spec_1_group","description":"1"},{"id":"username_of_poster","description":"msalek"},{"id":"delta_avge_mass","description":"4.0111"},{"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":"spec_1_misc_notes","description":"Isotopic labeled methionine SILAC"},{"id":"record_id","description":"862"},{"id":"spec_1_position","description":"Anywhere"},{"id":"delta_mono_mass","description":"4.022185"},{"id":"date_time_posted","description":"2008-08-11 13:43:25"},{"id":"approved","description":"0"},{"id":"date_time_modified","description":"2008-08-14 18:16:30"}]},{"accession":"UNIMOD:885","name":"Label:13C(1)2H(3)+Oxidation","definition":"Oxidised methionine 13C(1)2H(3) SILAC label.","additional_data":[{"id":"delta_composition","description":"H(-3) 2H(3) C(-1) 13C O"},{"id":"spec_1_group","description":"1"},{"id":"username_of_poster","description":"BThomas"},{"id":"delta_avge_mass","description":"20.0105"},{"id":"group_of_poster","description":""},{"id":"spec_1_hidden","description":"1"},{"id":"spec_1_site","description":"M"},{"id":"spec_1_classification","description":"Multiple"},{"id":"record_id","description":"885"},{"id":"spec_1_position","description":"Anywhere"},{"id":"delta_mono_mass","description":"20.0171"},{"id":"date_time_posted","description":"2008-10-24 09:47:20"},{"id":"approved","description":"0"},{"id":"date_time_modified","description":"2009-09-25 13:15:07"}]},{"accession":"UNIMOD:2088","name":"Label:13C(2)15N(1)","definition":"13C(2) 15N(1) Silac label.","additional_data":[{"id":"delta_composition","description":"C(-2) 13C(2) N(-1) 15N"},{"id":"spec_1_group","description":"1"},{"id":"username_of_poster","description":"jonasfoerster"},{"id":"delta_avge_mass","description":"2.9787"},{"id":"group_of_poster","description":""},{"id":"spec_1_hidden","description":"1"},{"id":"spec_1_site","description":"G"},{"id":"spec_1_classification","description":"Isotopic label"},{"id":"record_id","description":"2088"},{"id":"spec_1_position","description":"Anywhere"},{"id":"delta_mono_mass","description":"3.003745"},{"id":"date_time_posted","description":"2024-01-08 10:29:39"},{"id":"approved","description":"0"},{"id":"date_time_modified","description":"2024-02-29 10:49:16"}]},{"accession":"UNIMOD:1787","name":"Label:13C(2)15N(2)","definition":"13C(2) 15N(2).","additional_data":[{"id":"delta_composition","description":"C(-2) 13C(2) N(-2) 15N(2)"},{"id":"spec_1_group","description":"1"},{"id":"username_of_poster","description":"rbomgard"},{"id":"delta_avge_mass","description":"3.9721"},{"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":"record_id","description":"1787"},{"id":"spec_1_position","description":"Anywhere"},{"id":"delta_mono_mass","description":"4.00078"},{"id":"date_time_posted","description":"2015-05-15 22:30:48"},{"id":"approved","description":"0"},{"id":"date_time_modified","description":"2015-05-24 18:09:48"}]},{"accession":"UNIMOD:1296","name":"Label:13C(3)","definition":"13C3 label for SILAC.","additional_data":[{"id":"delta_composition","description":"C(-3) 13C(3)"},{"id":"spec_1_group","description":"1"},{"id":"username_of_poster","description":"unimod"},{"id":"delta_avge_mass","description":"2.978"},{"id":"group_of_poster","description":""},{"id":"spec_1_hidden","description":"1"},{"id":"spec_1_site","description":"A"},{"id":"spec_1_classification","description":"Isotopic label"},{"id":"record_id","description":"1296"},{"id":"spec_1_position","description":"Anywhere"},{"id":"delta_mono_mass","description":"3.010064"},{"id":"date_time_posted","description":"2011-11-21 14:36:18"},{"id":"approved","description":"0"},{"id":"date_time_modified","description":"2011-11-21 14:37:03"}]},{"accession":"UNIMOD:1297","name":"Label:13C(3)15N(1)","definition":"SILAC or AQUA label.","additional_data":[{"id":"delta_composition","description":"C(-3) 13C(3) N(-1) 15N"},{"id":"spec_1_group","description":"1"},{"id":"username_of_poster","description":"unimod"},{"id":"delta_avge_mass","description":"3.9714"},{"id":"group_of_poster","description":""},{"id":"spec_1_site","description":"A"},{"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":"4.007099"},{"id":"spec_2_hidden","description":"1"},{"id":"spec_1_hidden","description":"1"},{"id":"spec_2_site","description":"S"},{"id":"record_id","description":"1297"},{"id":"spec_1_position","description":"Anywhere"},{"id":"date_time_posted","description":"2011-11-21 14:37:53"},{"id":"approved","description":"0"},{"id":"date_time_modified","description":"2020-01-09 09:44:52"}]},{"accession":"UNIMOD:1266","name":"Label:13C(4)","definition":"13C4 Methionine label.","additional_data":[{"id":"delta_composition","description":"C(-4) 13C(4)"},{"id":"spec_1_group","description":"1"},{"id":"username_of_poster","description":"BThomas"},{"id":"delta_avge_mass","description":"3.9706"},{"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":"1266"},{"id":"spec_1_position","description":"Anywhere"},{"id":"delta_mono_mass","description":"4.013419"},{"id":"date_time_posted","description":"2011-07-27 09:55:40"},{"id":"approved","description":"0"},{"id":"date_time_modified","description":"2011-12-07 10:49:13"}]},{"accession":"UNIMOD:1298","name":"Label:13C(4)15N(1)","definition":"13C4 15N1 label for SILAC.","additional_data":[{"id":"delta_composition","description":"C(-4) 13C(4) N(-1) 15N"},{"id":"spec_1_group","description":"1"},{"id":"username_of_poster","description":"unimod"},{"id":"delta_avge_mass","description":"4.964"},{"id":"group_of_poster","description":""},{"id":"spec_1_hidden","description":"1"},{"id":"spec_1_site","description":"D"},{"id":"spec_1_classification","description":"Isotopic label"},{"id":"record_id","description":"1298"},{"id":"spec_1_position","description":"Anywhere"},{"id":"delta_mono_mass","description":"5.010454"},{"id":"date_time_posted","description":"2011-11-21 14:40:56"},{"id":"approved","description":"0"},{"id":"date_time_modified","description":"2011-11-21 14:40:56"}]},{"accession":"UNIMOD:923","name":"Label:13C(4)15N(2)+GG","definition":"13C(4) 15N(2) Lysine glygly.","additional_data":[{"id":"delta_composition","description":"H(6) 13C(4) 15N(2) O(2)"},{"id":"spec_1_group","description":"1"},{"id":"username_of_poster","description":"mpcusack"},{"id":"delta_avge_mass","description":"120.0601"},{"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 PTM (glygly) experiment"},{"id":"record_id","description":"923"},{"id":"spec_1_position","description":"Anywhere"},{"id":"delta_mono_mass","description":"120.050417"},{"id":"date_time_posted","description":"2009-09-16 21:04:07"},{"id":"approved","description":"0"},{"id":"date_time_modified","description":"2014-07-09 16:53:30"}]}]}