A modifying locus for familial adenomatous polyposis may be present on chromosome 1p35-p36.
Mutations of the APC gene cause familial adenomatous polyposis (FAP) in humans and multiple intestinal neoplasia (Min) in laboratory mouse strains. A dominant modifying gene (Mom1), which partially suppresses the min phenotype, has been mapped to mouse chromosome 4. This region is syntenic with human chromosome 1p35-p36. The phospholipase A2 (Pla2s) locus is an excellent candidate for Mom1 and the equivalent human locus PLA2G2A is found on chromosome 1p35. It does not necessarily follow, howe...Expand abstract
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