Any feedback?
Please rate this page
(ecexplorer.php)
(0/150)

BRENDA support

EC Explorer

EC 6.3.2.30 Details
EC number
6.3.2.30
Accepted name
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
Other name(s)
CphA (ambiguous), CphA1 (ambiguous), CphA2 (ambiguous), cyanophycin synthetase (ambiguous), multi-L-arginyl-poly-L-aspartate synthase (ambiguous)
Systematic name
cyanophycin:L-arginine ligase (ADP-forming)
CAS registry number
131554-17-1
Comment
Requires Mg2+ for activity. Both this enzyme and EC 6.3.2.29, cyanophycin synthase (L-aspartate-adding), 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 [2]. Both enzymes are found in the same protein but have different active sites [2,4]. Both L-Asp and L-Arg must be present before either enzyme will display significant activity [2]. Canavanine and lysine can be incoporated into the polymer instead of arginine [2].
History
created 2007
EC Tree
3.1.1.9 created 1961, deleted 1972
3.1.1.12 created 1961, deleted 1972
3.1.1.16 created 1961, deleted 1972
3.1.1.18 created 1961, deleted 1982
3.1.1.62 created 1989, deleted 1992
3.1.1.69 created 1992, deleted 2002