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Background
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The B-type cofactor-dependent phosphoglycerate mutase (dPGM-B) catalyzes the interconversion of 2-phosphoglycerate and 3-phosphoglycerate in glycolysis and gluconeogenesis pathways using 2,3-bisphosphoglycerate as the cofactor. The crystal structures of human dPGM-B bound with citrate were determined in two crystal forms. These structures reveal a dimerization mode conserved in both of dPGM and BPGM (bisphosphoglycerate mutase), based on which a dPGM/BPGM heterodimer structure is proposed. Structural comparison supports that the conformational changes of residues 13-21 and 98-117 determine PGM/BPGM activity differences.
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Synonyms
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PGAMA; PGAM-B; PGAM1; RP11-452K12.8; OTTHUMP00000020190; OTTHUMP00000059414; phosphoglycerate mutase A, nonmuscle form; EC 5.4.2.1,EC 5.4.2.4,EC 3.1.3.13; BPG-dependent PGAM 1; Phosphoglycerate mutase isozyme B; phosphoglycerate mutase A, nonmuscle form
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Reference
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Wang, Y., Wei, Z., Liu, L., Cheng, Z., Lin, Y., Ji, F., Gong, W. (2005) Crystal structure of human B-type phosphoglycerate mutase bound with citrate. Biochem.Biophys.Res.Commun. 331: 1207-1215
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