ClinVar Miner

Submissions for variant NM_000249.4(MLH1):c.404_407del (p.Leu135fs)

dbSNP: rs587779014
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Total submissions: 5
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
International Society for Gastrointestinal Hereditary Tumours (InSiGHT) RCV000075702 SCV000106705 pathogenic Lynch syndrome 2013-09-05 reviewed by expert panel research Coding sequence variation resulting in a stop codon
Invitae RCV003153350 SCV000543531 pathogenic Hereditary nonpolyposis colorectal neoplasms 2021-06-17 criteria provided, single submitter clinical testing For these reasons, this variant has been classified as Pathogenic. Loss-of-function variants in MLH1 are known to be pathogenic (PMID: 15713769, 24362816). This variant has not been reported in the literature in individuals with MLH1-related conditions. ClinVar contains an entry for this variant (Variation ID: 90213). This variant is not present in population databases (ExAC no frequency). This sequence change creates a premature translational stop signal (p.Leu135Glnfs*24) in the MLH1 gene. It is expected to result in an absent or disrupted protein product.
Ambry Genetics RCV001021735 SCV001183386 pathogenic Hereditary cancer-predisposing syndrome 2023-07-24 criteria provided, single submitter clinical testing The c.404_407delTGAA pathogenic mutation, located in coding exon 5 of the MLH1 gene, results from a deletion of 4 nucleotides at nucleotide positions 404 to 407, causing a translational frameshift with a predicted alternate stop codon (p.L135Qfs*24). This alteration is expected to result in loss of function by premature protein truncation or nonsense-mediated mRNA decay. As such, this alteration is interpreted as a disease-causing mutation.
Myriad Genetics, Inc. RCV003455998 SCV004186471 pathogenic Colorectal cancer, hereditary nonpolyposis, type 2 2023-07-13 criteria provided, single submitter clinical testing This variant is considered pathogenic. This variant creates a frameshift predicted to result in premature protein truncation.
Baylor Genetics RCV003455998 SCV004190608 likely pathogenic Colorectal cancer, hereditary nonpolyposis, type 2 2023-09-09 criteria provided, single submitter clinical testing

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