IUBMB Enzyme Nomenclature


Accepted name: UDP-arabinopyranose mutase

Reaction: UDP-β-L-arabinofuranose = UDP-β-L-arabinopyranose

Other name(s): Os03g40270 protein; UAM1; UAM3; RGP1; RGP3; OsUAM1; OsUAM2; Os03g0599800 protein; Os07g41360 protein

Systematic name: UDP-arabinopyranose pyranomutase

Comments: The reaction is reversible and at thermodynamic equilibrium the pyranose form is favored over the furanose form (90:10) [1].

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number:


1. Konishi, T., Takeda, T., Miyazaki, Y., Ohnishi-Kameyama, M., Hayashi, T., O'Neill, M.A. and Ishii, T. A plant mutase that interconverts UDP-arabinofuranose and UDP-arabinopyranose. Glycobiology 17 (2007) 345-354. [PMID: 17182701]

2. Konishi, T., Ohnishi-Kameyama, M., Funane, K., Miyazaki, Y., Konishi, T. and Ishii, T. An arginyl residue in rice UDP-arabinopyranose mutase is required for catalytic activity and autoglycosylation. Carbohydr. Res. 345 (2010) 787-791. [PMID: 20149347]

3. Konishi, T., Miyazaki, Y., Yamakawa, S., Iwai, H., Satoh, S. and Ishii, T. Purification and biochemical characterization of recombinant rice UDP-arabinopyranose mutase generated in insect cells. Biosci. Biotechnol. Biochem. 74 (2010) 191-194. [PMID: 20057139]

[EC created 2011]

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