MUTYH

Chr 1AR

mutY DNA glycosylase

Also known as: MYH

This gene encodes a DNA glycosylase involved in oxidative DNA damage repair. The enzyme excises adenine bases from the DNA backbone at sites where adenine is inappropriately paired with guanine, cytosine, or 8-oxo-7,8-dihydroguanine, a major oxidatively damaged DNA lesion. The protein is localized to the nucleus and mitochondria. This gene product is thought to play a role in signaling apoptosis by the introduction of single-strand breaks following oxidative damage. Mutations in this gene result in heritable predisposition to colorectal cancer, termed MUTYH-associated polyposis (MAP). Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2017]

OMIMResearchGenerating clinical summary…
LOFmechanismARLOEUF 1.192 OMIM phenotypes
Clinical SummaryMUTYH
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Gene-Disease Validity (ClinGen)
familial ovarian cancer · ARDisputed

Disputed — evidence questions this relationship

6 total gene-disease associations curated

Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.
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Clinical Trials
3 active or recruiting trials — potential therapeutic options may be available

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint?
1.19LOEUF
pLI 0.000
Z-score 0.66
OE 0.88 (0.661.19)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint?
-0.21Z-score
OE missense 1.03 (0.941.13)
322 obs / 311.7 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios?
LoF OE?0.88 (0.661.19)
00.351.4
Missense OE?1.03 (0.941.13)
00.61.4
Synonymous OE?1.01
01.21.6
LoF obs/exp: 30 / 34.2Missense obs/exp: 322 / 311.7Syn Z: -0.13

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

MUTYH · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.