Evidence map›Paper›PMID 27672209›Full record

ArticleThe Journal of biological chemistry2016

Purification of Ovine Respiratory Complex I Results in a Highly Active and Stable Preparation.

James A Letts, Gianluca Degliesposti, Karol Fiedorczuk, Mark Skehel, Leonid A Sazanov

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
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

19 citing papers in PubMed.

  1. Article
  2. Structure of mycobacterial respiratory complex I.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Cryo-EM structure of the entire mammalian F-type ATP synthase.Nature structural & molecular biology · 2020
    Article
  10. Mutations inCells · 2019
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. 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

5 authors.

James A LettsFrom the Institute of Science and Technology Austria, 3400 Klosterneuburg, Austria.
Gianluca Degliespostithe Medical Research Council Laboratory of Molecular Biology, Cambridge CB2 0QH, United Kingdom, and.
Karol FiedorczukFrom the Institute of Science and Technology Austria, 3400 Klosterneuburg, Austria,; the Medical Research Council Mitochondrial Biology Unit, Cambridge CB2 0XY, United Kingdom.
Mark Skehelthe Medical Research Council Laboratory of Molecular Biology, Cambridge CB2 0QH, United Kingdom, and.
Leonid A SazanovFrom the Institute of Science and Technology Austria, 3400 Klosterneuburg, Austria,. Electronic address: sazanov@ist.ac.at.

Funding

Medical Research Council MC_U105178788Medical Research Council MC_U105674180
6 · The paper itself

Abstract

NADH-ubiquinone oxidoreductase (complex I) is the largest (∼1 MDa) and the least characterized complex of the mitochondrial electron transport chain. Because of the ease of sample availability, previous work has focused almost exclusively on bovine complex I. However, only medium resolution structural analyses of this complex have been reported. Working with other mammalian complex I homologues is a potential approach for overcoming these limitations. Due to the inherent difficulty of expressing large membrane protein complexes, screening of complex I homologues is limited to large mammals reared for human consumption. The high sequence identity among these available sources may preclude the benefits of screening. Here, we report the characterization of complex I purified from Ovis aries (ovine) heart mitochondria. All 44 unique subunits of the intact complex were identified by mass spectrometry. We identified differences in the subunit composition of subcomplexes of ovine complex I as compared with bovine, suggesting differential stability of inter-subunit interactions within the complex. Furthermore, the 42-kDa subunit, which is easily lost from the bovine enzyme, remains tightly bound to ovine complex I. Additionally, we developed a novel purification protocol for highly active and stable mitochondrial complex I using the branched-chain detergent lauryl maltose neopentyl glycol. Our data demonstrate that, although closely related, significant differences exist between the biochemical properties of complex I prepared from ovine and bovine mitochondria and that ovine complex I represents a suitable alternative target for further structural studies.

Indexed as

AnimalsCattleElectron Transport Complex IHumansMitochondria, HeartSheepElectron Transport Complex Icomplex Ielectron transfermembrane proteinmitochondrial respiratory chain complexproton pumprespiratory chain

Identifiers

PMID27672209
PMCPMC5114416

What OpenQuestion holds

Textmetadata
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.