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| Gene | MLH1 |
| Variant | L550P |
| Impact List | missense |
| Protein Effect | unknown |
| Gene Variant Descriptions | MLH1 L550P lies within the EXO1-interacting region and C-terminal dimerization domain of the Mlh1 protein (PMID: 22753075). The functional effect of L550P is conflicting, as it results in a loss of mismatch repair activity in an in vitro assay (PMID: 20020535) and in cell culture (PMID: 31784484), and decreased Mlh1 expression and interaction with Pms2 in yeast (PMID: 40294053), but also demonstrates mismatch repair activity, localization, and protein expression to similar levels as wild-type Mlh1 in culture in another study (PMID: 16083711, PMID: 21120944). |
| Associated Drug Resistance | |
| Category Variants Paths |
MLH1 mutant MLH1 L550P |
| Transcript | NM_000249.4 |
| gDNA | chr3:g.37040276T>C |
| cDNA | c.1649T>C |
| Protein | p.L550P |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |