25-hidroksiholesterol 7α-hidroksilaza
| 25-hidroksiholesterol 7α-hidroksilaza | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifikatori | |||||||||
| EC broj | 1.14.13.100 | ||||||||
| Baze podataka | |||||||||
| IntEnz | IntEnz pregled | ||||||||
| BRENDA | BRENDA pristup | ||||||||
| ExPASy | NiceZyme pregled | ||||||||
| KEGG | KEGG pristup | ||||||||
| MetaCyc | metabolički put | ||||||||
| PRIAM | profil | ||||||||
| Strukture PBP | RCSB PDB PDBe PDBj PDBsum | ||||||||
| |||||||||
25-hidroksiholesterol 7α-hidroksilaza (EC 1.14.13.100, 25-hidroksiholesterol 7alfa-monooksigenaza, CYP7B1, CYP7B1 oksisterol 7alfa-hidroksilaza) je enzim sa sistematskim imenom holest-5-en-3beta,25-diol,NADPH:kiseonik oksidoreduktaza (7alfa-hidroksilacija).[1][2][3][4] Ovaj enzim katalizuje sledeću hemijsku reakciju
- (1) holest-5-en-3beta,25-diol + NADPH + H+ + O2 holest-5-en-3beta,7alfa,25-triol + NADP+ + H2O
- (2) holest-5-en-3beta,27-diol + NADPH + H+ + O2 holest-5-en-3beta,7alfa,27-triol + NADP+ +H2O
Ovaj enzim je hem-tiolatni protein (P-450).
Reference[уреди | уреди извор]
- ^ Toll, A., Wikvall, K., Sudjana-Sugiaman, E., Kondo, K.H. and Björkhem, I. (1994). „7α hydroxylation of 25-hydroxycholesterol in liver microsomes. Evidence that the enzyme involved is different from cholesterol 7α-hydroxylase”. Eur. J. Biochem. 224: 309—316. PMID 7925343.
- ^ Li-Hawkins, J., Lund, E.G., Bronson, A.D. and Russell, D.W. (2000). „Expression cloning of an oxysterol 7α-hydroxylase selective for 24-hydroxycholesterol”. J. Biol. Chem. 275: 16543—16549. PMID 10748047.
- ^ Ren, S., Marques, D., Redford, K., Hylemon, P.B., Gil, G., Vlahcevic, Z.R. and Pandak, W.M. (2003). „Regulation of oxysterol 7alpha-hydroxylase (CYP7B1) in the rat”. Metabolism. 52: 636—642. PMID 12759897.
- ^ Russell, D.W. (2003). „The enzymes, regulation, and genetics of bile acid synthesis”. Annu. Rev. Biochem. 72: 137—174. PMID 12543708.
Literatura[уреди | уреди извор]
- Nicholas C. Price; Lewis Stevens (1999). Fundamentals of Enzymology: The Cell and Molecular Biology of Catalytic Proteins (Third изд.). USA: Oxford University Press. ISBN 019850229X.
- Eric J. Toone (2006). Advances in Enzymology and Related Areas of Molecular Biology, Protein Evolution (Volume 75 изд.). Wiley-Interscience. ISBN 0471205036.
- Branden C; Tooze J. Introduction to Protein Structure. New York, NY: Garland Publishing. ISBN 0-8153-2305-0.
- Irwin H. Segel. Enzyme Kinetics: Behavior and Analysis of Rapid Equilibrium and Steady-State Enzyme Systems (Book 44 изд.). Wiley Classics Library. ISBN 0471303097.
- William P. Jencks (1987). Catalysis in Chemistry and Enzymology. Dover Publications. ISBN 0486654605.
Spoljašnje veze[уреди | уреди извор]
- 25-hydroxycholesterol+7alpha-hydroxylase на US National Library of Medicine Medical Subject Headings (MeSH)
