Keksin (EC 3.4.21.61, proteinaza yscF, prohormon-transformišuća endoproteaza, uparena-bazna endopeptidaza, kvaščana cisteinska proteinaza F, uparena-bazna endopeptidaza, andrenorfin-Gly-generišući enzim, endoproteinaza Kex2p, gen KEX2 dibazna proteinaza, Kex 2p proteinaza, Kex2 endopeptidaza, Kex2 endoproteaza, Kex2 endoproteinaza, Kex2 proteaza, proteinaza Kex2p, proteinaza transformacije prohormona, proproteinska konvertaza, proteaza KEX2, Kex2 proteinaza, Kex2-slična endoproteinaza) je enzim.[1][2][3][4][5] Ovaj enzim katalizuje sledeću hemijsku reakciju

Keksin
Identifikatori
EC broj 3.4.21.61
CAS broj 99676-46-7
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB RCSB PDB PDBe PDBj PDBsum
Razlaganje -Lys-Arg- i -Arg-Arg- veza u kvaščanom alfa-faktorskom feromonu i prekursorima smrtonisnih toksina

Ova peptidaza se aktivira jonom Ca2+.

Reference uredi

  1. Julius, D., Brake, A., Blair, L., Kunisawa, R. and Thorner, J. (1984). „Isolation of the putative structural gene for the lysine-arginine-cleaving endopeptidase required for processing of yeast prepro-α-factor”. Cell 37: 1075-1089. PMID 6430565. 
  2. Achstetter, T. and Wolf, D.H. (1985). „Hormone processing and membrane-bound proteinases in yeast”. EMBO J. 4: 173-177. PMID 3894003. 
  3. Mizuno, K., Nakamura, T., Ohshima, T., Tanaka, S. and Matsuo, H. (1988). „Yeast KEX2 gene encodes an endopeptidase homologous to subtilisin-like serine proteases”. Biochem. Biophys. Res. Commun. 156: 246-254. PMID 2845974. 
  4. Fuller, R.S., Brake, A. and Thorner, J. (1989). „Yeast prohormone processing enzyme (KEX2 gene product) is a Ca2+-dependent serine protease”. Proc. Natl. Acad. Sci. USA 86: 1434-1438. PMID 2646633. 
  5. Mizuno, K., Nakamura, T., Ohshima, T., Tanaka, S. and Matsuo, H. (1989). „Characterization of KEX2-encoded endopeptidase from yeast Saccharomyces cerevisiae”. Biochem. Biophys. Res. Commun. 159: 305-311. PMID 2845974. 

Literatura uredi

Spoljašnje veze uredi