Rs11209026

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dbSNPrs11209026
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23andMers11209026
SNP Nexus

GeneIL23R
Chromosome1
Orientationplus
Position67478546
GenotypeEffect
rs11209026(A;A)0.26x lower risk for certain autoimmune diseases
rs11209026(A;G)0.26x lower risk for certain autoimmune diseases
rs11209026(G;G)common


Genotypes Magnitude Summary
Rs11209026(A;A) 0.26x lower risk for certain autoimmune diseases
Rs11209026(A;G) 0.26x lower risk for certain autoimmune diseases
Rs11209026(G;G) 00 common
A relatively rare allele at SNP rs11209026, in the IL23R gene, appears to provide a fairly strong protective effect against the development of Crohn's disease in both Jewish and non-Jewish populations. [PMID 17068223]

Note that in this study the (A;A) and (A;G) genotypes were combined for statistical reasons (there were too few (A;A) individuals to study by themselves), so the risk is shown as equal for both.

[PMID 18047540] associated With Inflammatory Bowel Diseases but Not With Celiac Disease rs11209026 had a protective effect for IBD in the case-control analysis (odds ratio [OR] 0.19, 95% confidence interval [CI] 0.10-0.37, P= 6.6E-09). Both CD (OR 0.14, CI 0.06-0.37, P= 3.9E-07) and UC (OR 0.33, CI 0.15-0.73, P= 1.4E-03) were associated with IL23R. rs2241880 was associated with CD susceptibility (OR 1.36, CI 1.12-1.66, P= 0.0017). The population-attributable risk of carrying allele G is 0.24 and is 0.19 for homozygosity for allele G in CD.

With reference to ankylosing spondylitis, the rs11209026(A) allele also has a protective effect. The odds ratio for carriers is 0.63 (p=2.8x10e-5) based on a large study of over 1,000 Caucasian patients.[PMID 17952073, PMID 18037607]

This SNP is also part of a haplotype with rs7530511 associated with psoriasis.[PMID 18219280]. And in [PMID 18369459] rs11209026 was also confirmed to be associated with psoriasis.

[PMID 18047539] significant associations with rs1004819, rs7517847, and rs11209026. Having any CARD15 variant was associated with a significant risk for CD (P < 0.0001).

[PMID 18698678] Replicated reduced risk for Crohn's disease and ulcerative colitis with rs11209026(A) allele in a study of Italian patients.

A genome-wide association study using DNA samples from 1,052 individuals with ulcerative colitis and preexisting data from 2,571 controls, all of European ancestry, concluded that this SNP and several others were associated with altered risk for the disease.[PMID 19122664]

? (A;A) (A;G) (G;G)
GWAS
SNP rs11209026
PubMedID [PMID 17068223]
Condition Inflammatory bowel disease
Gene IL23R
Risk Allele A
pValue 4.00E-011
OR 3.84
95% CI 2.33-6.66


[PMID 19174780] Confirmation of multiple Crohn's disease susceptibility loci in a large Dutch-Belgian cohort

GWAS snp
PMID [PMID 18758464]
Trait Inflammatory bowel disease
Title Loci on 20q13 and 21q22 are associated with pediatric-onset inflammatory bowel disease
Risk Allele
P-val 7.0000000000000004E-11
Odds Ratio 2.56 [1.92-3.45]
GWAS snp
PMID [PMID 17447842]
Trait Crohn's disease
Title Novel Crohn disease locus identified by genome-wide association maps to a gene desert on 5p13.1 and modulates expression of PTGER4
Risk Allele
P-val 2.0000000000000001E-18
Odds Ratio 2.92 [NR]
Related to INFLAMMATORY BOWEL DISEASE 17; IBD17 according to omim 612261. See also


Related to INTERLEUKIN 23 RECEPTOR; IL23R according to omim 607562. See also


[PMID 19590455] Association of IL23R p.381Gln and ATG16L1 p.197Ala With Crohn Disease in the Czech Population

[PMID 19877036] Association of ERAP1, but not IL23R, with ankylosing spondylitis in a Han Chinese population

PharmGKBPA161889365
NameIL23R:Arg381Gln
AnnotationThe A allele of rs11209026 was shown to be associated with protection from Crohn's disease in GWAS of two white case-control cohorts(one Jewish, one non-Jewish).
GeneIL23R
Featue
EvidencePubMed ID:17068223
Drugs
DiseasesCrohn Disease
Curation LevelCurated
GWAS snp
PMID [PMID 19915572]
Trait Ulcerative colitis
Title Genome-wide association study of ulcerative colitis identifies three new susceptibility loci, including the HNF4A region
Risk Allele
P-val 3E-10
Odds Ratio NR NR
GWAS snp
PMID [PMID 20062062]
Trait Ankylosing spondylitis
Title Genome-wide association study of ankylosing spondylitis identifies non-MHC susceptibility loci
Risk Allele
P-val 9E-14
Odds Ratio 1.89 [1.56-2.27]


[PMID 20157760] Interleukin-23 receptor genetic polymorphisms and Crohn's disease susceptibility: a meta-analysis

[PMID 19705136] Genetic evidence for involvement of the IL23 pathway in Thai psoriatics