Evidence map›Paper›PMID 21799766›Full record

ArticlePloS one2011

Structural analysis of papain-like NlpC/P60 superfamily enzymes with a circularly permuted topology reveals potential lipid binding sites.

Qingping Xu, Neil D Rawlings, Hsiu-Ju Chiu, Lukasz Jaroszewski, Heath E Klock, Mark W Knuth, Mitchell D Miller, Marc-Andre Elsliger, Ashley M Deacon, Adam Godzik and 2 more

Abstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

24 citing papers in PubMed.

  1. Systematic discovery of circular permutations across the protein universe using CIRPIN.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. LipoproteinmBio · 2020
    Article
  13. Article
  14. A second RNA-binding protein is essential for ethanol tolerance provided by the bacterial OLE ribonucleoprotein complex.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  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

12 authors.

Qingping XuJoint Center for Structural Genomics, La Jolla, California, United States of America.
Neil D Rawlings
Hsiu-Ju Chiu
Lukasz Jaroszewski
Heath E Klock
Mark W Knuth
Mitchell D Miller
Marc-Andre Elsliger
Ashley M Deacon
Adam Godzik
Scott A Lesley
Ian A Wilson

Funding

Technology Evaluation CoreU54GM074898 · NIGMS · SCRIPPS RESEARCH INSTITUTE, THE · PI WILSON, IAN A · 2005 to 2009
$50.6M
Structure Determination Core at SSRLU54GM094586 · NIGMS · SCRIPPS RESEARCH INSTITUTE, THE · PI WOOLEY, JOHN C · 2010 to 2014
$40.1M
ZWITTERION SURFACTANT DDMAB FOR IMPROV STABIL OF PROTEINP41RR001209 · NCRR · STANFORD UNIVERSITY · PI SCOTT, EMILY E · 1985 to 2011
$38.9M
NCI NIH HHS Y1-CO-1020NCRR NIH HHS P41 RR001209NCRR NIH HHS P41RR001209NIGMS NIH HHS U54 GM074898NIGMS NIH HHS U54 GM094586NIGMS NIH HHS Y1-GM-1104
6 · The paper itself

Abstract

NlpC/P60 superfamily papain-like enzymes play important roles in all kingdoms of life. Two members of this superfamily, LRAT-like and YaeF/YiiX-like families, were predicted to contain a catalytic domain that is circularly permuted such that the catalytic cysteine is located near the C-terminus, instead of at the N-terminus. These permuted enzymes are widespread in virus, pathogenic bacteria, and eukaryotes. We determined the crystal structure of a member of the YaeF/YiiX-like family from Bacillus cereus in complex with lysine. The structure, which adopts a ligand-induced, "closed" conformation, confirms the circular permutation of catalytic residues. A comparative analysis of other related protein structures within the NlpC/P60 superfamily is presented. Permutated NlpC/P60 enzymes contain a similar conserved core and arrangement of catalytic residues, including a Cys/His-containing triad and an additional conserved tyrosine. More surprisingly, permuted enzymes have a hydrophobic S1 binding pocket that is distinct from previously characterized enzymes in the family, indicative of novel substrate specificity. Further analysis of a structural homolog, YiiX (PDB 2if6) identified a fatty acid in the conserved hydrophobic pocket, thus providing additional insights into possible function of these novel enzymes.

Indexed as

Lipid MetabolismAmino Acid SequenceBacillus cereusBacterial ProteinsBinding SitesBiocatalysisCatalytic DomainConserved SequenceFatty AcidsHumansHydrophobic and Hydrophilic InteractionsLigandsLipoproteinsModels, MolecularMolecular Sequence DataPapainBacterial ProteinsFatty AcidsLigandsLipoproteinsNlpD protein, bacteriaP60 protein, bacteriaPapain

Identifiers

PMID21799766
PMCPMC3142127

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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.