Evidence map›Paper›PMID 25687717›Full record

ArticleScientific reports2015

Insights into the role of substrates on the interaction between cytochrome b5 and cytochrome P450 2B4 by NMR.

Meng Zhang, Stéphanie V Le Clair, Rui Huang, Shivani Ahuja, Sang-Choul Im, Lucy Waskell, Ayyalusamy Ramamoorthy

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
6.0field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Nanodiscs: A toolkit for membrane protein science.Protein science : a publication of the Protein Society · 2021
    Review
  5. Expression, purification, and functional reconstitution ofBiochimica et biophysica acta. Biomembranes · 2020
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Substrate mediated redox partner selectivity of cytochrome P450.Chemical communications (Cambridge, England) · 2018
    Article
  11. Article
  12. Structural and functional effects of cytochromeThe Journal of biological chemistry · 2017
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Meng ZhangDepartment of Chemistry and Biophysics, University of Michigan, Ann Arbor, Michigan 48109-1055, USA.
Stéphanie V Le ClairDepartment of Chemistry and Biophysics, University of Michigan, Ann Arbor, Michigan 48109-1055, USA.
Rui HuangDepartment of Chemistry and Biophysics, University of Michigan, Ann Arbor, Michigan 48109-1055, USA.
Shivani AhujaDepartment of Chemistry and Biophysics, University of Michigan, Ann Arbor, Michigan 48109-1055, USA.
Sang-Choul ImDepartment of Anesthesiology, University of Michigan, and VA Medical Center, Ann Arbor, Michigan 48105, USA.
Lucy WaskellDepartment of Anesthesiology, University of Michigan, and VA Medical Center, Ann Arbor, Michigan 48105, USA.
Ayyalusamy RamamoorthyDepartment of Chemistry and Biophysics, University of Michigan, Ann Arbor, Michigan 48109-1055, USA.
University of Michigan · USAnn Arbor VA Medical Center · US

Funding

Supplement: Investigation of Membrane-Bound Cytochromes-P450-b5 InteractionsR01GM084018 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI RAMAMOORTHY, AYYALUSAMY · 2009 to 2018
$3.8M
PARTICIPATION OF CYTOCHROME B5 IN ANESTHETIC METABOLISMR01GM035533 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI WASKELL, LUCY A · 1985 to 2010
$2.7M
Rapid and efficient production of functional Cytochrome P450 enzymatic complex foR01GM095640 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI RAMAMOORTHY, AYYALUSAMY · 2010 to 2013
$1.3M
NIGMS NIH HHS GM084018NIGMS NIH HHS GM095640NIGMS NIH HHS GM35533NIGMS NIH HHS R01 GM035533NIGMS NIH HHS R01 GM084018NIGMS NIH HHS R01 GM095640
6 · The paper itself

Abstract

Mammalian cytochrome b5 (cyt b5) is a membrane-bound protein capable of donating an electron to cytochrome P450 (P450) in the P450 catalytic cycle. The interaction between cyt b5 and P450 has been reported to be affected by the substrates of P450; however, the mechanism of substrate modulation on the cyt b5-P450 complex formation is still unknown. In this study, the complexes between full-length rabbit cyt b5 and full-length substrate-free/substrate-bound cytochrome P450 2B4 (CYP2B4) are investigated using NMR techniques. Our findings reveal that the population of complexes is ionic strength dependent, implying the importance of electrostatic interactions in the complex formation process. The observation that the cyt b5-substrate-bound CYP2B4 complex shows a weaker dependence on ionic strength than the cyt b5-substrate-free CYP2B4 complex suggests the presence of a larger fraction of steoreospecific complexes when CYP2B4 is substrate-bound. These results suggest that a CYP2B4 substrate likely promotes specific interactions between cyt b5 and CYP2B4. Residues D65, V66, T70, D71 and A72 are found to be involved in specific interactions between the two proteins due to their weak response to ionic strength change. These findings provide insights into the mechanism underlying substrate modulation on the cyt b5-P450 complexation process.

Indexed as

Nuclear Magnetic Resonance, BiomolecularAryl Hydrocarbon HydroxylasesCytochrome P450 Family 2Cytochromes b5Models, MolecularOsmolar ConcentrationProtein BindingProtein ConformationSodium ChlorideSubstrate SpecificityAryl Hydrocarbon Hydroxylasescytochrome P-450 CYP2B4 (rabbit)Cytochrome P450 Family 2Cytochromes b5Sodium Chloride

Identifiers

PMID25687717
PMCPMC4330534
OpenAlexW2003774724

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.