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ENZYME entry: EC 6.3.2.29

Accepted Name
cyanophycin synthase (L-aspartate-adding).
Alternative Name(s)
cyanophycin synthetase.
multi-L-arginyl-poly-L-aspartate synthase.
Reaction catalysed
[L-4-(L-arginin-2-N-yl)aspartate](n) + ATP + L-aspartate <=> [L-4-(L-arginin-2-N-yl)aspartate](n)-L-aspartate + ADP + H(+) + phosphate
Comment(s)
  • Both this enzyme and EC 6.3.2.30 are required for the elongation of cyanophycin, which is a protein-like cell inclusion that is unique to cyanobacteria and acts as a temporary nitrogen store.
  • Both enzymes are found in the same protein but have different active sites.
  • Both L-Asp and L-Arg must be present before either enzyme will display significant activity.
Cross-references
BRENDA6.3.2.29
EC2PDB6.3.2.29
ExplorEnz6.3.2.29
PRIAM enzyme-specific profiles6.3.2.29
KEGG Ligand Database for Enzyme Nomenclature6.3.2.29
IUBMB Enzyme Nomenclature6.3.2.29
IntEnz6.3.2.29
MEDLINEFind literature relating to 6.3.2.29
MetaCyc6.3.2.29
Rhea expert-curated reactions6.3.2.29
UniProtKB/Swiss-Prot
Q9KGY4, CPHA_CROS5;  P56947, CPHA_GEMHP;  P58572, CPHA_NOSS1;  
P73833, CPHA_SYNY3;  O86109, CPHA_TRIV2;  

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