Evidence map›Paper›PMID 18092889›Full record

ArticlePLoS biology2007

Transglutaminase 2 undergoes a large conformational change upon activation.

Daniel M Pinkas, Pavel Strop, Axel T Brunger, Chaitan Khosla

Open access · goldAbstract read
In one paragraph

Article in PLoS biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 227 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
227citing papers in PubMed, 1 pooled it
14.4field-weighted citation impact, top 1% 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

227 citing papers in PubMed, 1 synthesis or guideline pooled it, 438 citations in OpenAlex.

  1. Pooled it
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  8. Review
  9. The cross-linking activity of transglutaminase 2 drives α-Synuclein pathology in synucleinopathy models.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
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  15. Classification of Protein Disulfide Bonds.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
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  18. Review
  19. Article
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167 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 2 institutions in 1 country.

Daniel M PinkasDepartment of Chemical Engineering, Stanford University, Stanford, California, United States of America.
Pavel Strop
Axel T Brunger
Chaitan Khosla
Howard Hughes Medical Institute · USStanford University · US

Funding

Role of Transglutaminase 2 in Celiac SprueR01DK063158 · NIDDK · STANFORD UNIVERSITY · PI CHAITAN KHOSLA · 2003 to 2026
$11.2M
Preclinical Validation of Transglutaminase 2 as a Novel Target for Celiac DiseaseR01DK100619 · NIDDK · STANFORD UNIVERSITY · PI KHOSLA, CHAITAN · 2014 to 2018
$2.3M
NIDDK NIH HHS DK 063158NIDDK NIH HHS R01 DK063158
6 · The paper itself

Abstract

Human transglutaminase 2 (TG2), a member of a large family of enzymes that catalyze protein crosslinking, plays an important role in the extracellular matrix biology of many tissues and is implicated in the gluten-induced pathogenesis of celiac sprue. Although vertebrate transglutaminases have been studied extensively, thus far all structurally characterized members of this family have been crystallized in conformations with inaccessible active sites. We have trapped human TG2 in complex with an inhibitor that mimics inflammatory gluten peptide substrates and have solved, at 2-A resolution, its x-ray crystal structure. The inhibitor stabilizes TG2 in an extended conformation that is dramatically different from earlier transglutaminase structures. The active site is exposed, revealing that catalysis takes place in a tunnel, bridged by two tryptophan residues that separate acyl-donor from acyl-acceptor and stabilize the tetrahedral reaction intermediates. Site-directed mutagenesis was used to investigate the acyl-acceptor side of the tunnel, yielding mutants with a marked increase in preference for hydrolysis over transamidation. By providing the ability to visualize this activated conformer, our results create a foundation for understanding the catalytic as well as the non-catalytic roles of TG2 in biology, and for dissecting the process by which the autoantibody response to TG2 is induced in celiac sprue patients.

Indexed as

AminationAmino Acid SequenceBinding SitesBiomimetic MaterialsCatalysisEnzyme ActivationEnzyme InhibitorsGTP-Binding ProteinsGuanosine DiphosphateHumansKineticsModels, MolecularMutationProtein BindingProtein Glutamine gamma Glutamyltransferase 2Protein Structure, QuaternaryEnzyme InhibitorsGTP-Binding ProteinsGuanosine DiphosphateProtein Glutamine gamma Glutamyltransferase 2Recombinant ProteinsTransglutaminases

Identifiers

PMID18092889
PMCPMC2140088
OpenAlexW2110928159

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.