The Enzyme Database

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EC 2.4.2.58     
Accepted name: hydroxyproline O-arabinosyltransferase
Reaction: UDP-β-L-arabinofuranose + [protein]-trans-4-hydroxy-L-proline = UDP + [protein]-trans-4-(β-L-arabinofuranosyl)oxy-L-proline
Glossary: trans-4-hydroxy-L-proline = (2S,4R)-4-hydroxyproline = (4R)-4-hydroxy-L-proline
Other name(s): HPAT
Systematic name: UDP-β-L-arabinofuranose:[protein]-trans-4-hydroxy-L-proline L-arabinofuranosyl transferase (configuration-retaining)
Comments: The enzyme, found in plants and mosses, catalyses the O-arabinosylation of hydroxyprolines in hydroxyproline-rich glycoproteins. The enzyme acts on the first hydroxyproline in the motif Val-hydroxyPro-hydroxyPro-Ser.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Ogawa-Ohnishi, M., Matsushita, W. and Matsubayashi, Y. Identification of three hydroxyproline O-arabinosyltransferases in Arabidopsis thaliana. Nat. Chem. Biol. 9 (2013) 726–730. [PMID: 24036508]
[EC 2.4.2.58 created 2016]
 
 


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