Aspartat kinaza

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Aspartat kinaza
Identifikatori
EC broj 2.7.2.4
CAS broj 9012-50-4
Baze podataka
IntEnz IntEnz pregled
BRENDA BRENDA pristup
ExPASy NiceZyme pregled
KEGG KEGG pristup
MetaCyc metabolički put
PRIAM profil
Strukture PBP RCSB PDB PDBe PDBsum

Aspartat kinaza (EC 2.7.2.4, aspartokinaza, AK, beta-aspartokinaza, aspartinska kinaza) je enzim sa sistematskim imenom ATP:L-aspartat 4-fosfotransferaza.[1][2][3][4][5][6] Ovaj enzim katalizuje sledeću hemijsku reakciju

ATP + L-aspartat ADP + 4-fosfo-L-aspartat

Enzim iz Escherichia coli je multifunkcionalni protein, koji takođe katalizuje reakciju EC 1.1.1.3, homoserin dehidrogenaze.

Reference[уреди]

  1. Black, S. (1962). „Conversion of aspartic acid to homoserine”. Methods Enzymol. 5: 820—827. 
  2. Paulus, H. & Gray, E. (1967). „Multivalent feedback inhibition of aspartokinase in Bacillus polymyxa. I. Kinetic studies”. J. Biol. Chem. 242: 4980—4986. PMID 6058940. 
  3. Starnes, W.L., Munk, P., Maul, S.B., Cunningham, G.N., Cox, D.J. and Shive, W. (1972). „Threonine-sensitive aspartokinase-homoserine dehydrogenase complex, amino acid composition, molecular weight, and subunit composition of the complex”. Biochemistry. 11: 677—687. PMID 4551091. 
  4. Véron, M., Falcoz-Kelly, F. and Cohen, G.N. (1972). „The threonine-sensitive homoserine dehydrogenase and aspartokinase activities of Escherichia coli K12. The two catalytic activities are carried by two independent regions of the polypeptide chain”. Eur. J. Biochem. 28: 520—527. PMID 4562990. 
  5. Chassagnole, C., Rais, B., Quentin, E., Fell, D. A. and Mazat, J.-P. (2001). „An integrated study of threonine-pathway enzyme kinetics in Escherichia coli”. Biochem. J. 356: 415—423. 
  6. Curien, G., Ravanel, S., Robert, M. and Dumas, R. (2005). „Identification of six novel allosteric effectors of Arabidopsis thaliana aspartate kinase-homoserine dehydrogenase isoforms”. J. Biol. Chem. 280: 41178—41183. 

Literatura[уреди]

Spoljašnje veze[уреди]