rs4588

A SNP in the GC gene on chromosome 4. Its most notable genotype is G;G: common in clinvar

Gene
GC
Location
Chr 471,752,606 (GRCh38)
Highest magnitude
0.0Typical
Tested on
23andMe, AncestryDNA, FamilyTreeDNA
Minor allele frequency
22%

Genotypes

Plus strand, as in 23andMe and AncestryDNA files.

  1. G;GMost notableGoodcommon in clinvarTypical · 0.064% of people

SNPedia records rs4588 on the minus strand: (C;C). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.

Frequency

Share of each genotype in 11 HapMap populations.

  • AverageG;G 64%
  • European ancestry (Utah)G;G 51%
  • Han Chinese (Beijing)G;G 46%
  • Japanese (Tokyo)G;G 54%
  • Yoruba (Nigeria)G;G 92%
  • African ancestry (Southwest US)G;G 91%
  • Chinese (Denver)G;G 52%
  • Gujarati IndianG;G 44%
  • Luhya (Kenya)G;G 88%
  • Mexican ancestry (Los Angeles)G;G 52%
  • Maasai (Kenya)G;G 82%
  • TuscanG;G 55%

Notes

From SNPedia

Show notes, about 330 words

see rs2282679, a near-perfect proxy for rs4588 rs4588(C), the more common allele in most populations, encodes a threonine (Thr) at position 436 in the vitamin D binding protein (VDBP); in older literature, this is numbered as position 420. rs4588(A), the rarer allele, encodes a lysine (Lys) at this position. see discussion at the GC gene for how rs4588 and rs7041 together define three forms of the VDB protein Gene-environment interaction effects on the development of immune responses in the 1st year of life. The genetics of chronic obstructive pulmonary disease. Vitamin D pathway gene polymorphisms, diet, and risk of postmenopausal breast cancer: a nested case-control study. The Gc2 allele of the vitamin D binding protein is associated with a decreased postmenopausal breast cancer risk, independent of the vitamin D status. Genetic and environmental determinants of 25-hydroxyvitamin D and 1,25-dihydroxyvitamin D levels in Hispanic and African Americans. Genetic polymorphisms of the vitamin D binding protein and plasma concentrations of 25-hydroxyvitamin D in premenopausal women. A meta-analysis of candidate gene polymorphisms and ischemic stroke in 6 study populations: association of lymphotoxin-alpha in nonhypertensive patients. Genetic risk factors in recurrent venous thromboembolism: A multilocus, population-based, prospective approach. Association of 77 polymorphisms in 52 candidate genes with blood pressure progression and incident hypertension: the Women's Genome Health Study. A candidate gene association study of 77 polymorphisms in migraine. An evaluation of candidate genes of inflammation and thrombosis in relation to the risk of venous thromboembolism: The Women's Genome Health Study. Associations between common variants in GC and DHCR7/NADSYN1 and vitamin D concentration in Chinese Hans. Genetic and environmental predictors of serum 25-hydroxyvitamin D concentrations among middle-aged and elderly Chinese in Singapore.

Source and license

Adapted from rs4588 on SNPedia, using a snapshot taken October 16, 2026. SNPedia content is shared under CC BY-NC-SA 3.0 US, and this page is shared under the same license.

SNPedia is a community-edited wiki. Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice. Magnitude is a community rating of how interesting a genotype is, not a risk score.