rs198846

This variant is located in the H1-6 gene.

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GWAS Catalog Trait Associations (4)

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

erythrocyte count

Verma A et al. “Diversity and scale: Genetic architecture of 2068 traits in the VA Million Veteran Program.” Science (new York, N.y.) 385(6706):eadj1182 (2024)
Allele A
OR 0.04
p 7.0e-36
N 405,366
Major Consortium StudyLarge GWAS
European

mean arterial pressure

Wain LV et al. “Genome-wide association study identifies six new loci influencing pulse pressure and mean arterial pressure.” Nature Genetics 43(10):1005-11 (2011)
Allele G
OR 0.48
p 2.0e-12
N 74,064
Large GWAS
European

hemoglobin measurement

Chambers JC et al. “Genome-wide association study identifies variants in TMPRSS6 associated with hemoglobin levels.” Nature Genetics 41(11):1170-2 (2009)
Allele A
OR —
p 1.0e-8
N 16,001
Large GWAS
multi-ancestry
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Research that mentions this SNP (1)

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Association of glycosylated hemoglobin with the gene encoding CDKAL1 in the Korean Association Resource (KARE) study
Meta-analysisN=159,940Jihye Ryu et al.(2012)· Human Mutation

Transethnic genome-wide meta-analysis in 159,940 individuals identified 60 common genetic variants associated with HbA1c levels. Variants were classified as glycemic (19), erythrocytic (22), or unclassified (19) based on their biological mechanisms. Glycemic variants were associated with higher type 2 diabetes risk (OR=1.05 per allele, p=3×10⁻²⁹), while erythrocytic variants were not. The X-linked G6PD G202A variant showed a large effect in African Americans (0.81% HbA1c reduction per allele) but minimal effects in other ancestries, potentially causing 2% of African American T2D cases to remain undiagnosed when using HbA1c screening.

Traits studied:2-hour glucoseErythrocytic traitsFasting glucoseGlycemic traitsHemoglobin A1c (HbA1c)Type 2 diabetes
PubMedDOIMetascience Observatory

About H1-6

Histones are basic nuclear proteins responsible for nucleosome structure of the chromosomal fiber in eukaryotes. Two molecules of each of the four core histones (H2A, H2B, H3, and H4) form an octamer, around which approximately 146 bp of DNA is wrapped in repeating units, called nucleosomes. The linker histone, H1, interacts with linker DNA between nucleosomes and functions in the compaction of chromatin into higher order structures. This gene is intronless and encodes a replication-dependent histone that is a member of the histone H1 family. Transcripts from this gene lack polyA tails but instead contain a palindromic termination element. This gene is found in the large histone gene cluster on chromosome 6. [provided by RefSeq, Aug 2015]

View all H1-6 variants →

Gene information from NCBI Gene. Variant classifications from ClinVar.

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