← Glossary
Gene

MCM6

MCM6 (minichromosome maintenance complex component 6) encodes a subunit of the MCM2-7 helicase complex that licenses and unwinds DNA during replication in dividing cells. The lactase-persistence variant rs4988235 sits within intron 13 of MCM6, in a regulatory enhancer element that controls expression of the neighboring LCT (lactase) gene in the small intestine, so this MCM6 intronic site — not the MCM6 protein itself — determines whether lactase production continues into adulthood for digesting dairy.

Traits MCM6 shapes

Markers (rsIDs)

Reference databases

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This page is for educational purposes only and is not medical advice. It is not intended to diagnose, treat, cure, or prevent any disease. Genetic results describe tendencies and predispositions, not diagnoses. Always consult a licensed clinician before making decisions about your health, medications, or supplements.