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ENZYME entry: EC 2.7.9.4

Accepted Name
Alpha-glucan, water dikinase.
Alternative Name(s)
Alpha-glucan,water dikinase.
Starch-related R1 protein.
Reaction catalysed
ATP + alpha-glucan + H(2)O <=> AMP + phospho-alpha-glucan + phosphate
Cofactor(s)
Mg(2+).
Comment(s)
  • ATP appears to be the only phosphate donor.
  • No activity could be detected using GTP, UTP, phosphoenolpyruvate or diphosphate.
  • The protein phosphorylates glucans exclusively at O-6 of glucosyl residues.
  • The protein phosphorylates itself with the beta-phosphate of ATP, which is then transferred to the glucan.
Cross-references
BRENDA2.7.9.4
EC2PDB2.7.9.4
ExplorEnz2.7.9.4
PRIAM enzyme-specific profiles2.7.9.4
KEGG Ligand Database for Enzyme Nomenclature2.7.9.4
IUBMB Enzyme Nomenclature2.7.9.4
IntEnz2.7.9.4
MEDLINEFind literature relating to 2.7.9.4
MetaCyc2.7.9.4
UniProtKB/Swiss-Prot
Q9SAC6, GWD1_ARATH;  Q8LPT9, GWD1_CITRE;  Q9AWA5, GWD1_SOLTU;  
Q9STV0, GWD2_ARATH;  

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