rs9128

This is a downstream gene variant variant in the JAK1 gene.

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GWAS Catalog Trait Associations (3)

Genome-wide significant associations (p < 5×10⁻⁸) from the NHGRI-EBI GWAS Catalog.

body height

Yengo L et al. “A saturated map of common genetic variants associated with human height.” Nature 610(7933):704-712 (2022)
Allele T
OR 0.06
p 2.0e-59
N 5,314,291
Large GWAS
European, Hispanic or Latin American, East Asian, African unspecified, South Asian
Sakaue S et al. “A cross-population atlas of genetic associations for 220 human phenotypes.” Nature Genetics 53(10):1415-1424 (2021)
Allele T
OR 0.06
p 2.0e-14
N 525,444
Large GWAS
multi-ancestry

appendicular lean mass

Pei YF et al. “The genetic architecture of appendicular lean mass characterized by association analysis in the UK Biobank study.” Communications Biology 3(1):608 (2020)
Allele T
OR 0.09
p 3.0e-25
N 450,243
Major Consortium StudyLarge GWAS
European

health trait

Schoeler T et al. “Combining cross-sectional and longitudinal genomic approaches to identify determinants of cognitive and physical decline.” Nature Communications 16(1):4524 (2025)
Allele C
OR 0.04
p 7.0e-16
N 405,979
Large GWAS
European

About JAK1

This gene encodes a membrane protein that is a member of a class of protein-tyrosine kinases (PTK) characterized by the presence of a second phosphotransferase-related domain immediately N-terminal to the PTK domain. The encoded kinase phosphorylates STAT proteins (signal transducers and activators of transcription) and plays a key role in interferon-alpha/beta, interferon-gamma, and cytokine signal transduction. This gene plays a crucial role in effecting the expression of genes that mediate inflammation, epithelial remodeling, and metastatic cancer progression. This gene is a key component of the interleukin-6 (IL-6)/JAK1/STAT3 immune and inflammation response and is a therapeutic target for alleviating cytokine storms. The kinase activity of this gene is directly inhibited by the suppressor of cytokine signalling 1 (SOCS1) protein. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2020]

View all JAK1 variants →

Gene information from NCBI Gene. Variant classifications from ClinVar.

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