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Literature summary for 6.3.2.30 extracted from

  • Burnat, M.; Herrero, A.; Flores, E.
    Compartmentalized cyanophycin metabolism in the diazotrophic filaments of a heterocyst-forming cyanobacterium (2014), Proc. Natl. Acad. Sci. USA, 111, 3823-3828.
    View publication on PubMedView publication on EuropePMC
Search for more literature for 6.3.2.30

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+
-
 Anabaena sp.

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
ATP + [L-Asp(4-L-Arg)]n-L-Asp + L-Arg Anabaena sp.
-
 ADP + phosphate + [L-Asp(4-L-Arg)]n+1
-
 ?
ATP + [L-Asp(4-L-Arg)]n-L-Asp + L-Arg Anabaena sp. PCC 7120
-
 ADP + phosphate + [L-Asp(4-L-Arg)]n+1
-
 ?

Organism

Organism UniProt Comment Textmining
Anabaena sp. P58572 gene cphA1
-
Anabaena sp. PCC 7120 P58572 gene cphA1
-

Source Tissue

Source Tissue Comment Organism Textmining
heterocyst high level Anabaena sp.
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + [L-Asp(4-L-Arg)]n-L-Asp + L-Arg
-
 Anabaena sp. ADP + phosphate + [L-Asp(4-L-Arg)]n+1
-
 ?
ATP + [L-Asp(4-L-Arg)]n-L-Asp + L-Arg
-
 Anabaena sp. PCC 7120 ADP + phosphate + [L-Asp(4-L-Arg)]n+1
-
 ?

Synonyms

Synonyms Comment Organism
cyanophycin synthetase
-
 Anabaena sp.

Cofactor

Cofactor Comment Organism Structure
ATP
-
 Anabaena sp.

General Information

General Information Comment Organism
malfunction heterocysts isolated from a mutant of gene cphA1, which encodes the main cyanophycin synthetase in Anabaena, produces the dipeptide only at low rates Anabaena sp.
metabolism the deletion mutant of gene all3922, encoding isoaspartyl dipeptidase, in the model heterocyst-formingcyanobacterium Anabaena sp. strain PCC 7120 leads to accumulation of cyanophycin and beta-aspartyl-arginine, and is impaired specifically in diazotrophic growth Anabaena sp.
physiological function heterocysts conspicuously accumulate polar granules made of cyanophycin, which is synthesized by cyanophycin synthetase. Heterocysts provide the vegetative cells with fixed nitrogen. The nitrogen-rich molecule beta-aspartyl-arginine is a nitrogen vehicle in the unique multicellular system represented by the heterocyst-forming cyanobacteria. Production of the dipeptide by isolated heterocysts is essentially dependent on cyanophycin, Anabaena sp.