Evidence map›Paper›PMID 19266066›Full record

ArticlePloS one2009

Structure of the archaeal pab87 peptidase reveals a novel self-compartmentalizing protease family.

Vanessa Delfosse, Eric Girard, Catherine Birck, Michaël Delmarcelle, Marc Delarue, Olivier Poch, Patrick Schultz, Claudine Mayer

Abstract read
In one paragraph

Article in PloS one, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. Review
  2. Article
  3. Crystal structure of a polyglycine hydrolase determined using a RoseTTAFold model.Acta crystallographica. Section D, Structural biology · 2023
    Article
  4. Article
  5. Article
  6. Recognition of corn defense chitinases by fungal polyglycine hydrolases.Protein science : a publication of the Protein Society · 2017
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. 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

8 authors.

Vanessa DelfosseCentre de Recherche des Cordeliers, LRMA, INSERM UMR-S 872, Université Pierre et Marie Curie, Paris, France.
Eric Girard
Catherine Birck
Michaël Delmarcelle
Marc Delarue
Olivier Poch
Patrick Schultz
Claudine Mayer

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Self-compartmentalizing proteases orchestrate protein turnover through an original architecture characterized by a central catalytic chamber. Here we report the first structure of an archaeal member of a new self-compartmentalizing protease family forming a cubic-shaped octamer with D(4) symmetry and referred to as CubicO. We solved the structure of the Pyrococcus abyssi Pab87 protein at 2.2 A resolution using the anomalous signal of the high-phasing-power lanthanide derivative Lu-HPDO3A. A 20 A wide channel runs through this supramolecular assembly of 0.4 MDa, giving access to a 60 A wide central chamber holding the eight active sites. Surprisingly, activity assays revealed that Pab87 degrades specifically d-amino acid containing peptides, which have never been observed in archaea. Genomic context of the Pab87 gene showed that it is surrounded by genes involved in the amino acid/peptide transport or metabolism. We propose that CubicO proteases are involved in the processing of d-peptides from environmental origins.

Indexed as

ArchaeaCrystallography, X-RayPeptide HydrolasesPeptidesProtein ConformationPyrococcus abyssiSubstrate SpecificityPeptide HydrolasesPeptides

Identifiers

PMID19266066
PMCPMC2651629

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.