MYH Glycosylase
MYH can refer to: *An alternative name for MUTYH, a gene that causes colon polyps when mutated. *Muslim Youth Helpline, a charity helpline that provides support for young people in the UK. * An abbreviation for "million years hence", as a future-looking parallel to the more common ''mya'' ("million years ago"). * Myosin heavy chain {{disambiguation ...
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MUTYH
''MUTYH'' (mutY DNA glycosylase) is a human gene that encodes a DNA glycosylase, MUTYH glycosylase. It is involved in oxidative DNA damage repair and is part of the base excision repair pathway. 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 common form of oxidative DNA damage. The protein is localized to the nucleus and mitochondria. Mutations in this gene result in heritable predisposition to colon and stomach cancer. Multiple transcript variants encoding different isoforms have been found for this gene. Location and structure MUTYH has its locus on the short (p) arm of chromosome 1 (1p34.1), from base pair 45,464,007 to base pair 45,475,152 (45,794,835–45,806,142). The gene is composed of 16 exons and has a size of 546 amino acids and is approximately 7.1kb. The presence of disulfide crosslinking gives rise to a complex crystal structure of the MUTY-DNA. The protein ...
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