rs4821764

This is a regulatory region variant variant in the MAFF gene.

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GWAS Catalog Trait Associations (9)

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

body fat percentage

Martin S et al. “Genetic Evidence for Different Adiposity Phenotypes and Their Opposing Influences on Ectopic Fat and Risk of Cardiometabolic Disease.” Diabetes 70(8):1843-1856 (2021)
Allele G
OR —
β 0.017
p 3.0e-29
N 442,278
Large GWAS
European

polyunsaturated fatty acids to monounsaturated fatty acids ratio

Zoodsma M et al. “A genetic map of human metabolism across the allele frequency spectrum.” Nature Genetics 57(10):2445-2455 (2025)
Allele A
OR 0.02
p 7.0e-25
N 450,015
Large GWAS
multi-ancestry

serum alanine aminotransferase amount

Martin S et al. “Genetic Evidence for Different Adiposity Phenotypes and Their Opposing Influences on Ectopic Fat and Risk of Cardiometabolic Disease.” Diabetes 70(8):1843-1856 (2021)
Allele G
OR —
β 0.017
p 7.0e-17
N 429,203
Large GWAS
European
Sakaue S et al. “A cross-population atlas of genetic associations for 220 human phenotypes.” Nature Genetics 53(10):1415-1424 (2021)
Allele G
OR 0.02
p 8.0e-17
N 494,681
Large GWAS
multi-ancestry
Chen VL et al. “Genome-wide association study of serum liver enzymes implicates diverse metabolic and liver pathology.” Nature Communications 12(1):816 (2021)
Allele G
OR 6.87
p 6.0e-12
N 390,812
Large GWAS
multi-ancestry

glomerular filtration rate

Hellwege JN et al. “Mapping eGFR loci to the renal transcriptome and phenome in the VA Million Veteran Program.” Nature Communications 10(1):3842 (2019)
Allele A
OR 0.36
p 5.0e-12
N 188,993
Major Consortium StudyLarge GWAS
multi-ancestry

reticulocyte count

Vuckovic D et al. “The Polygenic and Monogenic Basis of Blood Traits and Diseases.” Cell 182(5):1214-1231.e11 (2020)
Allele A
OR 0.01
p 3.0e-10
N 408,112
Large GWAS
European

body height

Schoeler T et al. “Participation bias in the UK Biobank distorts genetic associations and downstream analyses.” Nature Human Behaviour 7(7):1216-1227 (2023)
Allele G
OR 0.10
p 2.0e-9
N 283,749
Major Consortium StudyLarge GWAS
European

About MAFF

The protein encoded by this gene is a basic leucine zipper (bZIP) transcription factor that lacks a transactivation domain. It is known to bind the US-2 DNA element in the promoter of the oxytocin receptor (OTR) gene and most likely heterodimerizes with other leucine zipper-containing proteins to enhance expression of the OTR gene during term pregnancy. The encoded protein can also form homodimers, and since it lacks a transactivation domain, the homodimer may act as a repressor of transcription. This gene may also be involved in the cellular stress response. Multiple transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Jun 2009]

View all MAFF variants →

Gene information from NCBI Gene. Variant classifications from ClinVar.

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