Evidence map›Paper›PMID 19744499›Full record

ArticleJournal of molecular biology2009

Selection and structure of hyperactive inteins: peripheral changes relayed to the catalytic center.

Kaori Hiraga, Ikko Soga, John T Dansereau, Brian Pereira, Victoria Derbyshire, Zhenming Du, Chunyu Wang, Patrick Van Roey, Georges Belfort, Marlene Belfort

Abstract read
In one paragraph

Article in Journal of molecular biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed.

  1. Article
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  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Dynamics differentiate between active and inactive inteins.European journal of medicinal chemistry · 2015
    Article
  14. Review
  15. Article
  16. Review
  17. Review
  18. 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

10 authors.

Kaori HiragaWadsworth Center, New York State Department of Health, 150 New Scotland Avenue, Albany, NY 12208, USA.
Ikko Soga
John T Dansereau
Brian Pereira
Victoria Derbyshire
Zhenming Du
Chunyu Wang
Patrick Van Roey
Georges Belfort
Marlene Belfort

Funding

SELF-SPLICING INTEINS: FUNCTION, EVOLUTION, APPLICATIONR01GM044844 · NIGMS · WADSWORTH CENTER · PI BELFORT, MARLENE · 1990 to 2019
$8.9M
Modular and Project Based Training to Enhance Rigor and Reproducibility in Research for Diverse Biomedical CareersT32GM067545 · NIGMS · RENSSELAER POLYTECHNIC INSTITUTE · PI VASHISHTH, DEEPAK · 2004 to 2020
$3.0M
Testing novel hypotheses in Mtu RecA intein splicingR01GM081408 · NIGMS · RENSSELAER POLYTECHNIC INSTITUTE · PI WANG, CHUNYU · 2007 to 2011
$1.7M
NIGMS NIH HHS GM067545NIGMS NIH HHS GM44844NIGMS NIH HHS GM81408NIGMS NIH HHS R01 GM044844NIGMS NIH HHS R01 GM081408NIGMS NIH HHS T32 GM067545
6 · The paper itself

Abstract

Inteins are phylogenetically diverse self-splicing proteins that are of great functional, evolutionary, biotechnological, and medical interest. To address the relationship between intein structure and function, particularly with respect to regulating the splicing reaction, and to groom inteins for application, we developed a phage display system to extend current in vivo selection for enhanced intein function to selection in vitro. We thereby isolated inteins that can function under excursions in temperature, pH, and denaturing environment. Remarkably, most mutations mapped to the surface of the intein, remote from the active site. We chose two mutants with enhanced splicing activity for crystallography, one of which was also subjected to NMR analysis. These studies define a "ripple effect", whereby mutations in peripheral non-catalytic residues can cause subtle allosteric changes in the active-site environment in a way that facilitates intein activity. Altered salt-bridge formation and chemical shift changes of the mutant inteins provide a molecular rationale for their phenotypes. These fundamental insights will advance the utility of inteins in chemical biology, biotechnology, and medicine.

Indexed as

BiocatalysisInteinsPeptide LibraryAmino Acid SequenceChitinCrystallography, X-RayMagnetic Resonance SpectroscopyMolecular Sequence DataMutant ProteinsMutationMycobacterium tuberculosisPhenotypeProtein SplicingProtein Structure, SecondaryResins, SyntheticChitinMutant ProteinsPeptide LibraryResins, Synthetic

Identifiers

PMID19744499
PMCPMC2820369

What OpenQuestion holds

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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.