Katepsin K (EC 3.4.22.38, katepsin O2) je enzim.[1][2][3][4][5] Ovaj enzim katalizuje sledeću hemijsku reakciju

Katepsin K
Identifikatori
EC broj3.4.22.38
CAS broj94716-09-3
Baze podataka
IntEnzIntEnz pregled
BRENDABRENDA pristup
ExPASyNiceZyme pregled
KEGGKEGG pristup
MetaCycmetabolički put
PRIAMprofil
Strukture PBPRCSB PDB PDBe PDBj PDBsum
Široka proteolitička aktivnost na malim molekulima. Glavna odrednica specifičnosti je P2, koji je preferentno Leu, Met > Phe, i odsustvo Arg

Ovaj enzim je prominentno izražen u osteoklastima sisara.

Reference

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  1. ^ Inaoka, T., Bilbe, G., Ishibashi, O., Tezuka, K., Kumegawa, M. and Kokubo, T. (1995). „Molecular cloning of human cDNA for cathepsin K: Novel cysteine proteinase predominantly expressed in bone”. Biochem. Biophys. Res. Commun. 206: 89—96. PMID 7818555. 
  2. ^ Bossard, M.J., Tomaszek, T.A., Thompson, S.K., Amegadzie, B.Y., Hanning, C.R., Jones, C., Kurdyla, J.T., McNulty, D.E., Drake, F.H., Gowen, M. and Levy, M.A. (1996). „Proteolytic activity of human osteoclast cathepsin K - Expression, purification, activation, and substrate identification”. J. Biol. Chem. 271: 12517—12524. PMID 8647860. 
  3. ^ Bromme, D., Klaus, J.L., Okamoto, K., Rasnick, D. and Palmer, J.T. (1996). „Peptidyl vinyl sulphones: A new class of potent and selective cysteine protease inhibitors - S2P2 specificity of human cathepsin O2 in comparison with cathepsins S and L”. Biochem. J. 315: 85—89. PMID 8670136. 
  4. ^ Zhao, B.G., Janson, C.A., Amegadzie, B.Y., D'Alessio, K., Griffin, C., Hanning, C.R., Jones, C., Kurdyla, J., McQueney, M., Qiu, X.Y., Smith, W.W. and Abdel-Meguid, S.S. (1997). „Crystal structure of human osteoclast cathepsin K complex with E-64”. Nature Struct. Biol. 4: 109—111. PMID 9033588. 
  5. ^ McGrath, M.E., Klaus, J.L., Barnes, M.G. and Brömme, D. (1997). „Crystal structure of human cathepsin K complexed with a potent inhibitor”. Nature Struct. Biol. 4: 105—109. PMID 9033587. 

Literatura

уреди

Spoljašnje veze

уреди
  • Cathepsin+K на US National Library of Medicine Medical Subject Headings (MeSH)