Evidence map›Paper›PMID 8533774›Full record

ArticleAmerican journal of human genetics1995

Discordant patterns of linkage disequilibrium of the peptide-transporter loci within the HLA class II region.

W Klitz, J C Stephens, M Grote, M Carrington

Open access · greenAbstract read
In one paragraph

Article in American journal of human genetics, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 13% 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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 119 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Gut · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Analytical methods for immunogenetic population data.Methods in molecular biology (Clifton, N.J.) · 2012
    Article
  12. Mapping of multiple susceptibility variants within the MHC region for 7 immune-mediated diseases.Proceedings of the National Academy of Sciences of the United States of America · 2009
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  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

4 authors at 1 institution in 1 country.

W KlitzDepartment of Integrative Biology, University of California, Berkeley 94720, USA.
J C Stephens
M Grote
M Carrington
Acupuncture & Integrative Medicine College · US

Funding

POSTGRADUATE TRAINING PROGRAM IN GENETICST32GM007127 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI DILLIN, ANDREW G · 1985 to 2016
$7.9M
POPULATION GENETICS OF THE HLA REGIONR01GM035326 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI THOMSON, GLENYS J · 1986 to 2004
$1.1M
NIGMS NIH HHS GM07127NIGMS NIH HHS GM35326
6 · The paper itself

Abstract

Disequilibrium between genetic markers is expected to decline monotonically with recombinational map distance. We present evidence from the HLA class II region that seems to violate this principle. Pairwise disequilibrium values were calculated from six loci ranging in physical separation from 15 kb to 550 kb. The histocompatibility loci DRB1, DQA1, and DQB1, located on the distal end of the class II region, behave as a single evolutionary unit within which extremely high linkage disequilibrium exists. Lower but still significant levels of disequilibrium are present between these loci and DPB1, located at the proximal edge of the HLA complex. The peptide-transporter loci TAP1 and TAP2, located in the intervening region, reveal no disequilibrium with each other and low or negligible disequilibrium with the flanking loci. The action of two genetic process is required to account for this phenomenon: a recombinational hotspot operating between TAP1 and TAP2, to eliminate disequilibrium between these loci, and at the same time selection operating on particular combinations of alleles across the DR-DP region, to create disequilibrium in the favored haplotypes. The forces producing the patterns of disequilibrium observed here have implications for the mapping of train loci and disease genes: markers of TAP1, for example, would give a false impression as to the influence of DPB1 on a trait known to be associated with DQB1.

Indexed as

Linkage DisequilibriumAllelesBiological TransportCarrier ProteinsChromosome MappingEuropeHaplotypesHistocompatibility Antigens Class IIHumansCarrier ProteinsHistocompatibility Antigens Class II

Identifiers

PMID8533774
PMCPMC1801434
OpenAlexW1902872325

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.