Rs4911414

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is asnp
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dbSNPrs4911414
hapmaprs4911414
hgdprs4911414
ensemblrs4911414
gopubmedrs4911414
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hgvbaseg2prs4911414
medrefsnprs4911414
23andMers4911414
SNP Nexus

Chromosome20
Orientationplus
Position32193104
GenotypeEffect
rs4911414(G;G)normal
rs4911414(G;T)2-4x higher risk of sun sensitivity if part of risk haplotype
rs4911414(T;T)2-4x higher risk of sun sensitivity if part of risk haplotype


Genotypes Magnitude Summary
Rs4911414(G;G) 00 normal
Rs4911414(G;T) 2-4x higher risk of sun sensitivity if part of risk haplotype
Rs4911414(T;T) 2-4x higher risk of sun sensitivity if part of risk haplotype

rs4911414 is a SNP near the ASIP (agouti signaling protein) gene on chromosome 20.

This SNP is one of a tightly-linked pair that increases the likelihood of an individual being prone to sun sensitivity, in other words, freckles and sunburn, based on a study of 6,000+ Caucasians (5,000+ Icelanders + 1,000+ Dutch). The odds ratios, presumably on a dominant basis, and at least in the largest population (Icelanders) for "freckles and burns vs. no freckles and tans" for the haplotype pair rs1015362(G) - rs4911414(T) is 3.91 (CI: 2.54-6.03) for males and 2.42 (CI: 1.52-3.86) for females, with an overall p=0.051.[PMID 18488028]

Based on a study by the same authors of 4,000+ skin cancer patients, this haplotype was seen to confer significant increased risk for cutaneous malignant melanoma (odds ratio 1.45, p = 1.2 x 10-9) as well as basal cell carcinoma (odds ratio 1.33, p = 1.2 x 10-6).[PMID 18488027]

? (G;G) (G;T) (T;T)
GWAS
SNP rs1015362,rs4911414
PubMedID [PMID 18488028]
Condition Skin sensitivity to sun
Gene ASIP
Risk Allele T
pValue 2.00E-024
OR 1.76
95% CI 1.49-2.08


[PMID 19384953] Genetic variants in pigmentation genes, pigmentary phenotypes, and risk of skin cancer in Caucasians

Related to MELANOMA, CUTANEOUS MALIGNANT, SUSCEPTIBILITY TO, 7; CMM7 according to omim 612263. See also


Related to SKIN/HAIR/EYE PIGMENTATION, VARIATION IN, 9; SHEP9 according to omim 611742. See also


Related to AGOUTI SIGNALING PROTEIN; ASIP according to omim 600201. See also


PharmGKBPA162355809
Name
AnnotationThis variant is associated with the risk of cutaneous melanoma and basal cell carcinoma. It is also associated blue vs green eyes and skin sensitivity to sun.
Gene-
Featue
EvidencePubMed ID:18488027
Drugs
DiseasesCarcinoma, Basal Cell, Melanoma
Curation LevelCurated