_EC Cyanophycin synthase (L-arginine-adding). 0 PDB entries  
EC 6.-.-.- Ligases. [1,591 PDB entries]
EC 6.3.-.- Forming carbon-nitrogen bonds. [803 PDB entries]
EC 6.3.2.- Acid--amino-acid ligases (peptide synthases). [339 PDB entries]
EC Cyanophycin synthase (L-arginine-adding). [-]    

Reaction: Atp + (L-Asp(4-L-Arg))(n)-L-Asp + L-Arg = adp + phosphate + (L-Asp(4-L- Arg))(n+1).

+ (L-Asp(4-L-Arg))(n)-L-Asp
+ L-Arg
+ (L-Asp(4-L- Arg))(n+1)
Molecule diagrams generated from .mol files obtained from the KEGG ftp site.

Other name(s): Cyanophycin synthetase. Multi-L-arginyl-poly-L-aspartate synthase.
Cofactor(s): Mg(2+).
Comments: Both this enzyme and Ec 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. Canavanine and lysine can be incoporated into the polymer instead of arginine.
Links:   [IntEnz]   [ExPASy]   [KEGG]  

There are no PDB entries in enzyme class E.C.