Genetic Predisposition

Based on your genetic markers, your predisposition to this trait is shown below

Your Result

Lower Vitamin D Levels

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Scientific Evidence

Understanding the Data
  • SNP: A specific genetic marker relevant to this trait (e.g., rs2588978)
  • Genotype: Your genetic makeup at the given SNP location (e.g., CC)
  • Variant allele: The alternative DNA sequence at the SNP site
  • Variant allele frequency: Percentage of population carrying this variant
  • Variant found: Whether the variant was detected in your DNA file
4 genes analyzed 3 with detected variants
Variant Detected

CYP2R1 GeneCards

This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. This enzyme is a microsomal vitamin D hydroxylase that converts vitamin D into the active ligand for the vitamin D receptor. A mutation in this gene has been associated with selective 25-hydroxyvitamin D deficiency.

Genomic Location
Chr 11 Start: 14,898,986 End: 14,913,777 Build: HG19
Associated SNPs
1 / 1 detected
SNP Genotype Ref. Allele Variant Allele Frequency Status
Variant Detected

GC GeneCards

The protein encoded by this gene belongs to the albumin gene family. It is a multifunctional protein found in plasma, ascitic fluid, cerebrospinal fluid and on the surface of many cell types. It binds to vitamin D and its plasma metabolites and transports them to target tissues. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.

Genomic Location
Chr 4 Start: 72,607,410 End: 72,671,237 Build: HG19
Associated SNPs
1 / 1 detected
SNP Genotype Ref. Allele Variant Allele Frequency Status
Variant Detected

NADSYN1 GeneCards

NAD synthetase 1

Genomic Location
Chr 11 Start: 71,164,249 End: 71,212,862 Build: HG19
Associated SNPs
1 / 1 detected
SNP Genotype Ref. Allele Variant Allele Frequency Status

DHCR7 GeneCards

This gene encodes an enzyme that removes the C(7-8) double bond in the B ring of sterols and catalyzes the conversion of 7-dehydrocholesterol to cholesterol. This gene is ubiquitously expressed and its transmembrane protein localizes to the endoplasmic reticulum membrane and nuclear outer membrane. Mutations in this gene cause Smith-Lemli-Opitz syndrome (SLOS)

Genomic Location
Chr 11 Start: 71,145,457 End: 71,159,439 Build: HG19

No SNPs found for this gene in your DNA data.

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Coverage: 3/3 SNPs detected (100%)
Reference: Human Genome Build 37 (HG19)
Generated: March 02, 2026
DNA Genics reports genotypes based on the 'positive' strand of the human genome reference sequence. Other testing companies may report using the opposite strand, requiring conversion for accurate comparison.