Evidence map›Paper›PMID 27742839›Full record

ArticleThe Journal of biological chemistry2016

Structure of the Catalytic Domain of the Class I Polyhydroxybutyrate Synthase from Cupriavidus necator.

Elizabeth C Wittenborn, Marco Jost, Yifeng Wei, JoAnne Stubbe, Catherine L Drennan

Open access · hybridAbstract 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 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
6.8field-weighted citation impact, top 3% 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

30 citing papers in PubMed, 95 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. N-terminal truncation of PhaCMicrobial cell factories · 2024
    Article
  7. Article
  8. Article
  9. A review on microbial synthesis of lactate-containing polyesters.World journal of microbiology & biotechnology · 2022
    Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Review
  16. Engineering ofFrontiers in bioengineering and biotechnology · 2021
    Article
  17. Article
  18. PHA Production and PHA Synthases of the Halophilic BacteriumBioengineering (Basel, Switzerland) · 2020
    Article
  19. Article
  20. 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 at 1 institution in 1 country.

Elizabeth C WittenbornFrom the Departments of Chemistry.
Marco JostFrom the Departments of Chemistry.
Yifeng WeiFrom the Departments of Chemistry.
JoAnne StubbeFrom the Departments of Chemistry, stubbe@mit.edu.
Catherine L DrennanFrom the Departments of Chemistry, cdrennan@mit.edu.
Massachusetts Institute of Technology · US

Funding

Interdepartmental Biotechnology Training ProgramT32GM008334 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI WITTRUP, KARL DANE · 1989 to 2018
$15.2M
Overall EvaluationP41GM103403 · NIGMS · CORNELL UNIVERSITY · PI EALICK, STEVEN E · 2012 to 2017
$14.3M
Polyhydroxyalkanoates: A paradigm for non-template dependent polymerizationsR01GM049171 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI STUBBE, JOANNE · 1994 to 2009
$3.2M
Complex Metallocluster Structure and AssemblyR01GM069857 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI DRENNAN, CATHERINE L · 2004 to 2017
$3.1M
Pixel Array Detector for X-ray CrystallographyS10RR029205 · NCRR · CORNELL UNIVERSITY · PI EALICK, STEVEN E · 2010 to 2010
$1.8M
NCRR NIH HHS S10 RR029205NIGMS NIH HHS P41 GM103403NIGMS NIH HHS R01 GM049171NIGMS NIH HHS R01 GM069857NIGMS NIH HHS T32 GM008334
6 · The paper itself

Abstract

Polyhydroxybutyrate synthase (PhaC) catalyzes the polymerization of 3-(R)-hydroxybutyryl-coenzyme A as a means of carbon storage in many bacteria. The resulting polymers can be used to make biodegradable materials with properties similar to those of thermoplastics and are an environmentally friendly alternative to traditional petroleum-based plastics. A full biochemical and mechanistic understanding of this process has been hindered in part by a lack of structural information on PhaC. Here we present the first structure of the catalytic domain (residues 201-589) of the class I PhaC from Cupriavidus necator (formerly Ralstonia eutropha) to 1.80 Å resolution. We observe a symmetrical dimeric architecture in which the active site of each monomer is separated from the other by ∼33 Å across an extensive dimer interface, suggesting a mechanism in which polyhydroxybutyrate biosynthesis occurs at a single active site. The structure additionally highlights key side chain interactions within the active site that play likely roles in facilitating catalysis, leading to the proposal of a modified mechanistic scheme involving two distinct roles for the active site histidine. We also identify putative substrate entrance and product egress routes within the enzyme, which are discussed in the context of previously reported biochemical observations. Our structure lays a foundation for further biochemical and structural characterization of PhaC, which could assist in engineering efforts for the production of eco-friendly materials.

Indexed as

Bacterial ProteinsCrystallography, X-RayCupriavidus necatorLigasesProtein DomainsBacterial ProteinsLigasesbacterial metabolismbiosynthesisbiotechnologyenzyme mechanismX-ray crystallography

Identifiers

PMID27742839
PMCPMC5122792
OpenAlexW2530106940

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.