Cited by 707Pharmacogenetics and Drug MetabolismMetal-Catalyzed Oxygenation MechanismsEnzyme Structure and Function

Mammalian Microsomal Cytochrome P450 Monooxygenase

Open access
Williams, Pamela A., Cosme, Jose, Sridhar, Vandana, Johnson, Eric F., McRee, Duncan E.·2000·Molecular Cell

Abstract

Microsomal cytochrome P450s participate in xenobiotic detoxification, procarcinogen activation, and steroid hormone synthesis. The first structure of a mammalian microsomal P450 suggests that the association of P450s with the endoplasmic reticulum involves a hydrophobic surface of the protein formed by noncontiguous portions of the polypeptide chain. This interaction places the entrance of the putative substrate access channel in or near the membrane and orients the face of the protein proximal to the heme cofactor perpendicular to the plane of the membrane for interaction with the P450 reductase. This structure offers a template for modeling other mammalian P450s and should aid drug discovery and the prediction of drug-drug interactions.

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Registry

Crossref · 10.1016/s1097-2765(00)80408-6

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51 of 51 references verified0 citation errors · 0 not checkable

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  • Low-circulating levels of plasma XO in baseline conditions can increase in disease conditions by release from damaged cells in liver or other tissues.

    “There are low-circulating levels of plasma XO in baseline conditions that can increase in disease conditions by the release from damaged cells in liver or other tissues (1010).”

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Authors
Williams, P. A., Cosme, J., Sridhar, V., Johnson, E. F., & McRee, D. E.
Affiliations
Scripps Research Institute (US)
Corresponding author
McRee, Duncan E.
Venue
Molecular Cell
Publisher
Elsevier BV
Published
2000-01
Volume
5
Issue
1
Pages
121-131
ISSN
1097-2765 (ISSN-L)
OpenAlex
W2051639214
Cited by
696
References
52
Citations by year
2026: 4 · 2025: 5 · 2024: 10 · 2023: 5 · 2022: 8 · 2021: 7 · 2020: 19 · 2019: 15 · 2018: 18 · 2017: 18 · 2016: 21 · 2015: 13 · 2014: 18 · 2013: 20 · 2012: 11
FWCI
53.02
Type
journal article
Language
en
Open access
Locations
  • Molecular Cell (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5p01gm048495-08)
  • National Institute of General Medical Sciences (R01GM031001, GM-31001, GM-48495)
Topics
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Pharmacogenetics and Drug Metabolism
  • Physical Sciences › Chemistry › Inorganic Chemistry › Metal-Catalyzed Oxygenation Mechanisms
  • Physical Sciences › Materials Science › Materials Chemistry › Enzyme Structure and Function
Keywords
cytochrome P450, endoplasmic reticulum, protein structure, NADPH-cytochrome P450 reductase, xenobiotic detoxification, procarcinogen activation, steroidogenesis, drug-drug interactions, drug discovery
MeSH terms
Cytochrome P450 Family 2, Amino Acid Sequence, Animals, Binding Sites, Cytochrome P-450 Enzyme System, Endoplasmic Reticulum, Heme, Mammals, Microsomes, Models, Molecular, Molecular Sequence Data, Steroid 21-Hydroxylase, Protein Structure, Secondary, Crystallography, X-Ray

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