Evidence map›Paper›PMID 22170232›Full record

ArticleGenes and immunity2012

Amino acid position 11 of HLA-DRβ1 is a major determinant of chromosome 6p association with ulcerative colitis.

J-P Achkar, L Klei, P I W de Bakker, G Bellone, N Rebert, R Scott, Y Lu, M Regueiro, A Brzezinski, M I Kamboh and 6 more

Open access · bronzeAbstract read
In one paragraph

Article in Genes and immunity, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

21 citing papers in PubMed, 36 citations in OpenAlex.

  1. Trial
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  8. Development of an AmpliSeqFrontiers in pharmacology · 2018
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  18. Major histocompatibility complex genomics and human disease.Annual review of genomics and human genetics · 2013
    Review
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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

16 authors at 6 institutions in 1 country.

J-P AchkarDepartment of Gastroenterology and Hepatology, Digestive Disease Institute, Cleveland Clinic, Cleveland, OH, USA.
L Klei
P I W de Bakker
G Bellone
N Rebert
R Scott
Y Lu
M Regueiro
A Brzezinski
M I Kamboh
C Fiocchi
B Devlin
M Trucco
S Ringquist
K Roeder
R H Duerr
University of Pittsburgh · USChildren's Hospital of Pittsburgh · USCarnegie Mellon University · USCleveland Clinic · USCleveland Clinic Lerner College of Medicine · USHarvard University · US

Funding

CTSA INFRASTRUCTURE FOR PEDIATRIC RESEARCHUL1RR024989 · NCRR · CASE WESTERN RESERVE UNIVERSITY · PI DAVIS, PAMELA B · 2007 to 2011
$53.7M
NIDDK IBD Genetics Consortium Genetic Research CenterU01DK062420 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI DUERR, RICHARD H · 2002 to 2021
$7.8M
Search for the Alzheimers GenesR01AG030653 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI KAMBOH, M. ILYAS · 2009 to 2019
$7.7M
Genetics Association in Schizophrenia and Other DisordersR37MH057881 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI DEVLIN, BERNIE · 2013 to 2022
$5.4M
GENETIC ASSOCIATION IN SCHIZOPHRENIA AND OTHER DISORDERSR01MH057881 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI DEVLIN, BERNIE · 1998 to 2012
$4.8M
Identification of the Ulcerative Colitis Gene(s) on Chromosome 2qR01DK076025 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI DUERR, RICHARD H · 2007 to 2008
$962k
Genetic Studies in Crohn's DiseaseK23DK068112 · NIDDK · CLEVELAND CLINIC LERNER COM-CWRU · PI ACHKAR, JEAN-PAUL · 2005 to 2009
$645k
NIA NIH HHS AG030653NIA NIH HHS R01 AG030653NIDDK NIH HHS DK062420NIDDK NIH HHS DK068112NIDDK NIH HHS DK076025NIDDK NIH HHS K23 DK068112NIDDK NIH HHS R01 DK076025NIDDK NIH HHS U01 DK062420NIMH NIH HHS MH057881NIMH NIH HHS R01 MH057881NIMH NIH HHS R37 MH057881
6 · The paper itself

Abstract

The major histocompatibility complex (MHC) on chromosome 6p is an established risk locus for ulcerative colitis (UC) and Crohn's disease (CD). We aimed to better define MHC association signals in UC and CD by combining data from dense single-nucleotide polymorphism (SNP) genotyping and from imputation of classical human leukocyte antigen (HLA) types, their constituent SNPs and corresponding amino acids in 562 UC, 611 CD and 1428 control subjects. Univariate and multivariate association analyses were performed, controlling for ancestry. In univariate analyses, absence of the rs9269955 C allele was strongly associated with risk for UC (P = 2.67 × 10(-13)). rs9269955 is a SNP in the codon for amino acid position 11 of HLA-DRβ1, located in the P6 pocket of the HLA-DR antigen binding cleft. This amino acid position was also the most significantly UC-associated amino acid in omnibus tests (P = 2.68 × 10(-13)). Multivariate modeling identified rs9269955-C and 13 other variants in best predicting UC vs control status. In contrast, there was only suggestive association evidence between the MHC and CD. Taken together, these data demonstrate that variation at HLA-DRβ1, amino acid 11 in the P6 pocket of the HLA-DR complex antigen binding cleft is a major determinant of chromosome 6p association with UC.

Indexed as

Chromosomes, Human, Pair 6Genetic Predisposition to DiseaseAllelesAmino Acid SubstitutionColitis, UlcerativeCrohn DiseaseGene FrequencyGenome-Wide Association StudyGenotypeHLA-DR beta-ChainsHumansPolymorphism, Single NucleotideHLA-DR beta-Chains

Identifiers

PMID22170232
PMCPMC3341846
OpenAlexW1970549297

What OpenQuestion holds

Textmetadata
LicenceTDM
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.