PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 31707653-2 2020 We describe a procedure for determining the stoichiometry of histidine phosphorylation on the human histidine kinases NME1 and NME2 by intact mass spectrometry under conditions that retain this acid-labile protein modification. histidine-pyridine-histidine-3 61-70 NME/NM23 nucleoside diphosphate kinase 2 Homo sapiens 127-131 31707653-2 2020 We describe a procedure for determining the stoichiometry of histidine phosphorylation on the human histidine kinases NME1 and NME2 by intact mass spectrometry under conditions that retain this acid-labile protein modification. histidine-pyridine-histidine-3 100-109 NME/NM23 nucleoside diphosphate kinase 2 Homo sapiens 127-131