Evidence map›Paper›PMID 22740694›Full record

ArticleThe Journal of biological chemistry2012

Structural basis for the reaction mechanism of S-carbamoylation of HypE by HypF in the maturation of [NiFe]-hydrogenases.

Yasuhito Shomura, Yoshiki Higuchi

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. 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
2.6field-weighted citation impact, top 11% 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

19 citing papers in PubMed, 49 citations in OpenAlex.

  1. Review
  2. Article
  3. Conservation and Diversification of tRNA tInternational journal of molecular sciences · 2022
    Review
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  15. Article
  16. Crystal structures of the carbamoylated and cyanated forms of HypE for [NiFe] hydrogenase maturation.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Article
  17. Article
  18. Article
  19. Structure of the [NiFe]-hydrogenase maturation protein HypF from Thermococcus kodakarensis KOD1.Acta crystallographica. Section F, Structural biology and crystallization communications · 2012
    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

2 authors at 1 institution in 1 country.

Yasuhito ShomuraDepartment of Life Science, Graduate School of Life Science, University of Hyogo, Hyogo 678-1297, Japan. shomura@sci.u-hyogo.ac.jp
Yoshiki Higuchi
SPring-8 · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

As a remarkable structural feature of hydrogenase active sites, [NiFe]-hydrogenases harbor one carbonyl and two cyano ligands, where HypE and HypF are involved in the biosynthesis of the nitrile group as a precursor of the cyano groups. HypF catalyzes S-carbamoylation of the C-terminal cysteine of HypE via three steps using carbamoylphosphate and ATP, producing two unstable intermediates: carbamate and carbamoyladenylate. Although the crystal structures of intact HypE homodimers and partial HypF have been reported, it remains unclear how the consecutive reactions occur without the loss of unstable intermediates during the proposed reaction scheme. Here we report the crystal structures of full-length HypF both alone and in complex with HypE at resolutions of 2.0 and 2.6 Å, respectively. Three catalytic sites of the structures of the HypF nucleotide- and phosphate-bound forms have been identified, with each site connected via channels inside the protein. This finding suggests that the first two consecutive reactions occur without the release of carbamate or carbamoyladenylate from the enzyme. The structure of HypF in complex with HypE revealed that HypF can associate with HypE without disturbing its homodimeric interaction and that the binding manner allows the C-terminal Cys-351 of HypE to access the S-carbamoylation active site in HypF, suggesting that the third step can also proceed without the release of carbamoyladenylate. A comparison of the structure of HypF with the recently reported structures of O-carbamoyltransferase revealed different reaction mechanisms for carbamoyladenylate synthesis and a similar reaction mechanism for carbamoyltransfer to produce the carbamoyl-HypE molecule.

Indexed as

Protein MultimerizationBacterial ProteinsCrystallography, X-RayHydrogenaseMultiprotein ComplexesProtein Processing, Post-TranslationalProtein Structure, QuaternaryThermoanaerobacterBacterial ProteinsHydrogenasehypE protein, BacteriaHypF protein, BacteriaMultiprotein Complexesnickel-iron hydrogenase

Identifiers

PMID22740694
PMCPMC3436534
OpenAlexW2026231179

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.