Evidence map›Paper›PMID 18420815›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2008

TRIM21 is an IgG receptor that is structurally, thermodynamically, and kinetically conserved.

Anthony H Keeble, Zahra Khan, Alan Forster, Leo C James

Open access · greenAbstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 124 papers.

0numbers the graph read from it
0cells of the map it votes in
124citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

124 citing papers in PubMed, 197 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Tripartite motif containing 21 autoimmunity primes CD8Arthritis research & therapy · 2026
    Article
  6. Article
  7. TRIM21 is a molecular rheostat for influenza A virus replication.bioRxiv : the preprint server for biology · 2026
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. ZnBalkan medical journal · 2024
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

64 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.

Anthony H KeebleDivision of Protein and Nucleic Acid Chemistry, Laboratory of Molecular Biology, Medical Research Council, Hills Road, Cambridge CB2 2QH, United Kingdom.
Zahra Khan
Alan Forster
Leo C James
Medical Research Council · GBMRC Laboratory of Molecular Biology · GB

Funding

Medical Research Council MC_U105181010
6 · The paper itself

Abstract

The newly identified tripartite motif (TRIM) family of proteins mediate innate immunity and other critical cellular functions. Here we show that TRIM21, which mediates the autoimmune diseases rheumatoid arthritis, systemic lupus erythematosus, and Sjögren's syndrome, is a previously undescribed IgG receptor with a binding mechanism unlike known mammalian Fcgamma receptors. TRIM21 simultaneously targets conserved hot-spot residues on both Ig domains of the Fc fragment using a PRYSPRY domain with a preformed multisite interface. The binding sites on both TRIM21 and Fc are highly conserved to the extent that the proteins are functionally interchangeable through murine, canine, primate, and human species. Pre-steady-state analysis exposes mechanistic conservation at the level of individual residues, which make the same energetic and kinetic contributions to binding despite varying in sequence. Together, our results reveal that TRIM21 is a previously undescribed type of IgG receptor based on a non-Ig scaffold whose interaction at the fundamental level-structural, thermodynamic, and kinetic-is evolutionarily conserved.

Indexed as

Amino Acid SequenceAnimalsBinding SitesDNA-Binding ProteinsHumansImmunoglobulin GKineticsMiceMolecular Sequence DataMutagenesis, Site-DirectedNuclear ProteinsProtein Structure, TertiaryReceptors, IgGRibonucleoproteinsSequence AlignmentSS-A AntigenDNA-Binding ProteinsImmunoglobulin GNuclear ProteinsReceptors, IgGRibonucleoproteinsSS-A Antigen

Identifiers

PMID18420815
PMCPMC2329685
OpenAlexW2023482962

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.