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Literature summary 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

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
6.3.2.29 Mg2+
-
 Anabaena sp.
6.3.2.30 Mg2+
-
 Anabaena sp.

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
6.3.2.29 ATP + [L-Asp(4-L-Arg)]n + L-Asp Anabaena sp.
-
 ADP + phosphate + [L-Asp(4-L-Arg)]n-L-Asp
-
 ?
6.3.2.29 ATP + [L-Asp(4-L-Arg)]n + L-Asp Anabaena sp. PCC 7120
-
 ADP + phosphate + [L-Asp(4-L-Arg)]n-L-Asp
-
 ?
6.3.2.30 ATP + [L-Asp(4-L-Arg)]n-L-Asp + L-Arg Anabaena sp.
-
 ADP + phosphate + [L-Asp(4-L-Arg)]n+1
-
 ?
6.3.2.30 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

EC Number Organism UniProt Comment Textmining
3.4.15.6 Nostoc sp.
-
-
-
3.4.15.6 Nostoc sp. PCC 7120
-
-
-
6.3.2.29 Anabaena sp. P58572 gene cphA1
-
6.3.2.29 Anabaena sp. PCC 7120 P58572 gene cphA1
-
6.3.2.30 Anabaena sp. P58572 gene cphA1
-
6.3.2.30 Anabaena sp. PCC 7120 P58572 gene cphA1
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.4.15.6 heterocyst compartmentalized degradation of cyanophycin, with the first step, catalyzed by cyanophycinase, taking place in the heterocysts and the second step, catalyzed by a dipeptidase, taking place mainly in the vegetative cells Nostoc sp.
-
6.3.2.29 heterocyst high level Anabaena sp.
-
6.3.2.30 heterocyst high level Anabaena sp.
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
6.3.2.29 ATP + [L-Asp(4-L-Arg)]n + L-Asp
-
 Anabaena sp. ADP + phosphate + [L-Asp(4-L-Arg)]n-L-Asp
-
 ?
6.3.2.29 ATP + [L-Asp(4-L-Arg)]n + L-Asp
-
 Anabaena sp. PCC 7120 ADP + phosphate + [L-Asp(4-L-Arg)]n-L-Asp
-
 ?
6.3.2.30 ATP + [L-Asp(4-L-Arg)]n-L-Asp + L-Arg
-
 Anabaena sp. ADP + phosphate + [L-Asp(4-L-Arg)]n+1
-
 ?
6.3.2.30 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

EC Number Synonyms Comment Organism
6.3.2.29 cyanophycin synthetase
-
 Anabaena sp.
6.3.2.30 cyanophycin synthetase
-
 Anabaena sp.

Cofactor

EC Number Cofactor Comment Organism Structure
6.3.2.29 ATP
-
 Anabaena sp.
6.3.2.30 ATP
-
 Anabaena sp.

General Information

EC Number General Information Comment Organism
3.4.15.6 physiological function compartmentalized degradation of cyanophycin, with the first step, catalyzed by cyanophycinase, taking place in the heterocysts and the second step, catalyzed by a dipeptidase, taking place mainly in the vegetative cells Nostoc sp.
6.3.2.29 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.
6.3.2.29 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.
6.3.2.29 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.
6.3.2.30 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.
6.3.2.30 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.
6.3.2.30 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.