Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP6_Very_StrongBS1
The NM_000535.7(PMS2):c.706-6_706-4delTTT variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00389 in 1,092,160 control chromosomes in the GnomAD database, with no homozygous occurrence. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).
PMS2 (HGNC:9122): (PMS1 homolog 2, mismatch repair system component) The protein encoded by this gene is a key component of the mismatch repair system that functions to correct DNA mismatches and small insertions and deletions that can occur during DNA replication and homologous recombination. This protein forms heterodimers with the gene product of the mutL homolog 1 (MLH1) gene to form the MutL-alpha heterodimer. The MutL-alpha heterodimer possesses an endonucleolytic activity that is activated following recognition of mismatches and insertion/deletion loops by the MutS-alpha and MutS-beta heterodimers, and is necessary for removal of the mismatched DNA. There is a DQHA(X)2E(X)4E motif found at the C-terminus of the protein encoded by this gene that forms part of the active site of the nuclease. Mutations in this gene have been associated with hereditary nonpolyposis colorectal cancer (HNPCC; also known as Lynch syndrome) and Turcot syndrome. [provided by RefSeq, Apr 2016]
Variant 7-5997426-GAAA-G is Benign according to our data. Variant chr7-5997426-GAAA-G is described in ClinVar as [Likely_benign]. Clinvar id is 286329.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr7-5997426-GAAA-G is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4_exome allele frequency = 0.00442 (4243/958902) while in subpopulation AFR AF= 0.00611 (135/22086). AF 95% confidence interval is 0.00527. There are 0 homozygotes in gnomad4_exome. There are 2123 alleles in male gnomad4_exome subpopulation. This position pass quality control queck.