Evidence map›Paper›PMID 16950923›Full record

ArticleJournal of bacteriology2006

Posttranslational modification of the 20S proteasomal proteins of the archaeon Haloferax volcanii.

Matthew A Humbard, Stanley M Stevens, Julie A Maupin-Furlow

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.0field-weighted citation impact, top 27% 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

19 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Review
  6. Protein Ser/Thr/Tyr phosphorylation in the Archaea.The Journal of biological chemistry · 2014
    Review
  7. Review
  8. Archaeal proteasomes and sampylation.Sub-cellular biochemistry · 2013
    Review
  9. Extreme challenges and advances in archaeal proteomics.Current opinion in microbiology · 2012
    Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. 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

3 authors at 1 institution in 1 country.

Matthew A HumbardDepartment of Microbiology and Cell Science, University of Florida, Gainesville, 32611-0700, USA.
Stanley M Stevens
Julie A Maupin-Furlow
University of Florida · US

Funding

Ubiquitin-like Small Archaeal Protein Modification (SAMPylation)R01GM057498 · NIGMS · UNIVERSITY OF FLORIDA · PI MAUPIN-FURLOW, JULIE A · 2000 to 2024
$4.9M
NIGMS NIH HHS R01 GM057498
6 · The paper itself

Abstract

20S proteasomes are large, multicatalytic proteases that play an important role in intracellular protein degradation. The barrel-like architecture of 20S proteasomes, formed by the stacking of four heptameric protein rings, is highly conserved from archaea to eukaryotes. The outer two rings are composed of alpha-type subunits, and the inner two rings are composed of beta-type subunits. The halophilic archaeon Haloferax volcanii synthesizes two different alpha-type proteins, alpha1 and alpha2, and one beta-type protein that assemble into at least two 20S proteasome subtypes. In this study, we demonstrate that all three of these 20S proteasomal proteins (alpha1, alpha2, and beta) are modified either post- or cotranslationally. Using electrospray ionization quadrupole time-of-flight mass spectrometry, a phosphorylation site of the beta subunit was identified at Ser129 of the deduced protein sequence. In addition, alpha1 and alpha2 contained N-terminal acetyl groups. These findings represent the first evidence of acetylation and phosphorylation of archaeal proteasomes and are one of the limited examples of post- and/or cotranslational modification of proteins in this unusual group of organisms.

Indexed as

Protein Processing, Post-TranslationalAcetylationAmino Acid SequenceArchaeal ProteinsConserved SequenceElectrophoresis, Gel, Two-DimensionalHaloferax volcaniiIsoenzymesMolecular Sequence DataPeptide HydrolasesPhosphorylationProteasome Endopeptidase ComplexProtein IsoformsProtein Modification, TranslationalSequence AlignmentSpectrometry, Mass, Electrospray IonizationArchaeal ProteinsIsoenzymesPeptide HydrolasesProteasome Endopeptidase ComplexProtein Isoforms

Identifiers

PMID16950923
PMCPMC1636277
OpenAlexW2115847027

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.