Evidence map›Paper›PMID 22554985›Full record

ReviewBiochimica et biophysica acta2012

Structure, function, and assembly of heme centers in mitochondrial respiratory complexes.

Hyung J Kim, Oleh Khalimonchuk, Pamela M Smith, Dennis R Winge

Abstract readReview
In one paragraph

Review in Biochimica et biophysica acta, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 137 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
137citing papers in PubMed, 1 pooled it
3.8field-weighted citation impact, top 6% 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

137 citing papers in PubMed, 1 synthesis or guideline pooled it, 249 citations in OpenAlex.

  1. Pooled it
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  20. Pneumococcal HbioRxiv : the preprint server for biology · 2025
    Article

77 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Hyung J KimUniversity of Utah Health Sciences Center, Department of Medicine, Salt Lake City, UT 84132, USA.
Oleh Khalimonchuk
Pamela M Smith
Dennis R Winge
University of Utah · US

Funding

RESEARCH TRAINING IN HEMATOLOGYT32DK007115 · NIDDK · UNIVERSITY OF UTAH · PI LEIBOLD, ELIZABETH ANN, PRCHAL, JOSEF T · 1986 to 2020
$8.4M
METAL CHELATION IN PROTEINS WITH POLYMETALLIC CLUSTERSR37ES003817 · NIEHS · UNIVERSITY OF UTAH · PI WINGE, DENNIS R. · 1999 to 2008
$4.1M
METAL CHELATION IN PROTEINS WITH POLYMETALLIC CLUSTERSR01ES003817 · NIEHS · UNIVERSITY OF UTAH · PI WINGE, DENNIS R. · 1985 to 2013
$2.3M
Metal Homeostatic Mechanisms in YeastR01GM083292 · NIGMS · UNIVERSITY OF UTAH · PI WINGE, DENNIS R. · 2008 to 2011
$1.2M
NIDDK NIH HHS T32 DK007115NIEHS NIH HHS ES03817NIEHS NIH HHS R01 ES003817NIEHS NIH HHS R37 ES003817NIGMS NIH HHS GM083292NIGMS NIH HHS R01 GM083292
6 · The paper itself

Abstract

The sequential flow of electrons in the respiratory chain, from a low reduction potential substrate to O(2), is mediated by protein-bound redox cofactors. In mitochondria, hemes-together with flavin, iron-sulfur, and copper cofactors-mediate this multi-electron transfer. Hemes, in three different forms, are used as a protein-bound prosthetic group in succinate dehydrogenase (complex II), in bc(1) complex (complex III) and in cytochrome c oxidase (complex IV). The exact function of heme b in complex II is still unclear, and lags behind in operational detail that is available for the hemes of complex III and IV. The two b hemes of complex III participate in the unique bifurcation of electron flow from the oxidation of ubiquinol, while heme c of the cytochrome c subunit, Cyt1, transfers these electrons to the peripheral cytochrome c. The unique heme a(3), with Cu(B), form a catalytic site in complex IV that binds and reduces molecular oxygen. In addition to providing catalytic and electron transfer operations, hemes also serve a critical role in the assembly of these respiratory complexes, which is just beginning to be understood. In the absence of heme, the assembly of complex II is impaired, especially in mammalian cells. In complex III, a covalent attachment of the heme to apo-Cyt1 is a prerequisite for the complete assembly of bc(1), whereas in complex IV, heme a is required for the proper folding of the Cox 1 subunit and subsequent assembly. In this review, we provide further details of the aforementioned processes with respect to the hemes of the mitochondrial respiratory complexes. This article is part of a Special Issue entitled: Cell Biology of Metals.

Indexed as

ElectronsBacteriaElectron TransportElectron Transport Complex IIElectron Transport Complex IIIElectron Transport Complex IVHemeHumansMitochondriaModels, MolecularOxidation-ReductionOxidative PhosphorylationOxygenThermodynamicsUbiquinoneElectron Transport Complex IIElectron Transport Complex IIIElectron Transport Complex IVHemeOxygenubiquinolUbiquinone

Identifiers

PMID22554985
PMCPMC3601904
OpenAlexW2083643006

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.