Evidence map›Paper›PMID 28991453›Full record

ArticleBiochemistry2017

Active Site Structures of CYP11A1 in the Presence of Its Physiological Substrates and Alterations upon Binding of Adrenodoxin.

Qianhong Zhu, Piotr J Mak, Robert C Tuckey, James R Kincaid

Open access · greenAbstract read
In one paragraph

Article in Biochemistry, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.8field-weighted citation impact, top 29% 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

5 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Alternative modes of OJournal of inorganic biochemistry · 2020
    Article
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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

4 authors at 2 institutions in 2 countries.

Qianhong ZhuDepartment of Chemistry, Marquette University , Milwaukee, Wisconsin 53233, United States.
Piotr J MakDepartment of Chemistry, Marquette University , Milwaukee, Wisconsin 53233, United States.
Robert C TuckeySchool of Molecular Sciences, The University of Western Australia , Perth, WA 6009, Australia.
James R KincaidDepartment of Chemistry, Marquette University , Milwaukee, Wisconsin 53233, United States.ORCID 0000-0001-6050-1438
Marquette University · USThe University of Western Australia · AU

Funding

Raman Studies of Mammalian Cytochromes P450R01GM096117 · NIGMS · MARQUETTE UNIVERSITY · PI KINCAID, JAMES ROBERT · 2010 to 2013
$1.0M
NIGMS NIH HHS R01 GM096117
6 · The paper itself

Abstract

The rate-limiting step in the steroid synthesis pathway is catalyzed by CYP11A1 through three sequential reactions. The first two steps involve hydroxylations at positions 22 and 20, generating 20(R),22(R)-dihydroxycholesterol (20R,22R-DiOHCH), with the third stage leading to a C20-C22 bond cleavage, forming pregnenolone. This work provides detailed information about the active site structure of CYP11A1 in the resting state and substrate-bound ferric forms as well as the CO-ligated adducts. In addition, high-quality resonance Raman spectra are reported for the dioxygen complexes, providing new insight into the status of Fe-O-O fragments encountered during the enzymatic cycle. Results show that the three natural substrates of CYP11A1 have quite different effects on the active site structure, including variations of spin state populations, reorientations of heme peripheral groups, and, most importantly, substrate-mediated distortions of Fe-CO and Fe-O

Indexed as

Models, MolecularAdrenodoxinCatalytic DomainCholesterol Side-Chain Cleavage EnzymeHumansProtein Structure, QuaternaryAdrenodoxinCholesterol Side-Chain Cleavage Enzyme

Identifiers

PMID28991453
PMCPMC6541926
OpenAlexW2761228909

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.