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ENZYME entry: EC 2.7.9.5

Accepted Name
Phosphoglucan, water dikinase.
Reaction catalysed
ATP + (phospho-alpha-glucan) + H(2)O <=> AMP + O-phospho-(phospho-alpha-glucan) + phosphate
Comment(s)
  • The enzyme phosphorylates granular starch that has previously been phosphorylated by EC 2.7.9.4; there is no activity with unphosphorylated glucans.
  • It transfers the beta-phosphate of ATP to the phosphoglucan, whereas the gamma-phosphate is transferred to water.
  • In contrast to EC 2.7.9.4, which phosphorylates the glucose groups in glucans predominantly on O-6, this enzyme phosphorylates glucose groups in phosphorylated starch predominantly on O-3.
  • The protein phosphorylates itself with the beta-phosphate of ATP, which is then transferred to the glucan.
Cross-references
BRENDA2.7.9.5
EC2PDB2.7.9.5
ExplorEnz2.7.9.5
PRIAM enzyme-specific profiles2.7.9.5
KEGG Ligand Database for Enzyme Nomenclature2.7.9.5
IUBMB Enzyme Nomenclature2.7.9.5
IntEnz2.7.9.5
MEDLINEFind literature relating to 2.7.9.5
MetaCyc2.7.9.5
UniProtKB/Swiss-Prot
Q6ZY51, PWD_ARATH;  Q2QTC2, PWD_ORYSJ;  

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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.7.9.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.7.-.-
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