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A new class EC 7, Translocases, has been added to the EC list. It will be part of ENZYME from release 2018_10. Read more about EC 7 here.

ENZYME entry: EC 2.7.99.1

Accepted Name
Triphosphate--protein phosphotransferase.
Alternative Name(s)
Diphosphate--protein phosphotransferase.
DiPPT.
Pyrophosphate-protein phosphotransferase.
Reaction catalysed
Triphosphate + [microsomal-membrane protein] <=> diphosphate + [microsomal-membrane protein] phosphate
Comment(s)
  • This enzyme was originally thought to use diphosphate as substrate but this has since been disproved.
  • The activity is observed as the second part of a biphasic reaction after depletion of ATP.
  • Tripolyphosphate is a contaminant of (gamma-(32)P)ATP.
  • Formerly EC 2.7.1.104.
Cross-references
BRENDA2.7.99.1
EC2PDB2.7.99.1
ExplorEnz2.7.99.1
PRIAM enzyme-specific profiles2.7.99.1
KEGG Ligand Database for Enzyme Nomenclature2.7.99.1
IUBMB Enzyme Nomenclature2.7.99.1
IntEnz2.7.99.1
MEDLINEFind literature relating to 2.7.99.1
MetaCyc2.7.99.1

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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.7.99.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.7.-.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.-.-.-