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Literature summary for 1.14.14.1 extracted from

  • Zhao, Y.; White, M.A.; Muralidhara, B.K.; Sun, L.; Halpert, J.R.; Stout, C.D.
    Structure of microsomal cytochrome P450 2B4 complexed with the antifungal drug bifonazole: insight into P450 conformational plasticity and membrane interaction (2006), J. Biol. Chem., 281, 5973-5981.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expression of mutant H226Y in Escherichia coli Oryctolagus cuniculus

Crystallization (Commentary)

Crystallization (Comment) Organism
purified recombinant mutant enzyme H226Y in complex with bifonazole, X-ray diffraction structure determination and analysis at 2.3 A resolution Oryctolagus cuniculus

Protein Variants

Protein Variants Comment Organism
H226Y site-directed mutagenesis, altered coordination of the Fe2+ ion and binding of inhibitor bifonazole Oryctolagus cuniculus

Inhibitors

Inhibitors Comment Organism Structure
bifonazole an anti-fungal drug, complex formation with CYP2B4, inhibits monooxygenase activity and induces a type II binding spectrum in CYP2B4 mutant H226Y, plastic regions efficiently, because conformational changes are clustered, the 2B4-bifonazole dimer is different from the ligand-free 2B4dH dimer, which involves the coordination of His226 to the heme iron of the other monomer Oryctolagus cuniculus

Localization

Localization Comment Organism GeneOntology No. Textmining
microsome
-
Oryctolagus cuniculus
-
-

Metals/Ions

Metals/Ions Comment Organism Structure
Fe2+ heme iron, His226 is involved in metal ion coordination Oryctolagus cuniculus

Organism

Organism UniProt Comment Textmining
Oryctolagus cuniculus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
recombinant mutant H226Y from Escherichia coli by ion exchange chromatography and ultracentrifugation Oryctolagus cuniculus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
7-ethoxy-trifluoromethylcoumarin + [reduced NADPH-hemoprotein reductase] + O2 O-deethylation Oryctolagus cuniculus ?
-
?
additional information regiospecific and stereo-specific activity, overview Oryctolagus cuniculus ?
-
?

Subunits

Subunits Comment Organism
dimer
-
Oryctolagus cuniculus

Synonyms

Synonyms Comment Organism
CYP2B4
-
Oryctolagus cuniculus
cytochrome P450 2B4
-
Oryctolagus cuniculus