7-6002641-G-C
Variant summary
Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4_StrongBP6
The NM_001406875.1(PMS2):āc.40C>Gā(p.His14Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000023 in 1,609,404 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 7/7 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_001406875.1 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -5 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152186Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000199 AC: 5AN: 251140Hom.: 0 AF XY: 0.0000295 AC XY: 4AN XY: 135722
GnomAD4 exome AF: 0.0000240 AC: 35AN: 1457218Hom.: 0 Cov.: 29 AF XY: 0.0000234 AC XY: 17AN XY: 724980
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152186Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74342
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:1Benign:2
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This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
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Lynch syndrome Uncertain:2
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not provided Uncertain:2
In-silico analysis, which includes splice predictors and evolutionary conservation, is inconclusive as to whether the variant alters gene splicing. In the absence of RNA/functional studies, the actual effect of this sequence change is unknown.; Observed in an individual with colorectal cancer (Yurgelun 2017); This variant is associated with the following publications: (PMID: 27535533, 28135145) -
The frequency of this variant in the general population, 0.000044 (5/113424 chromosomes, http://gnomad.broadinstitute.org), is uninformative in assessment of its pathogenicity. In the published literature, it has been reported in an individual with colorectal cancer (PMID: 28135145 (2017)). Analysis of this variant using software algorithms for the prediction of the effect of nucleotide changes on splicing yielded predictions that this variant may affect proper PMS2 mRNA splicing . Based on the available information, we are unable to determine the clinical significance of this variant. -
not specified Uncertain:1
Variant summary: PMS2 c.354-5C>G alters a nucleotide located at a position not widely known to affect splicing. Several computational tools predict a significant impact on normal splicing: Two predict the variant weakens a cryptic 3 acceptor site. One predict the variant abolishes a 3 acceptor site. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 2e-05 in 251140 control chromosomes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.354-5C>G has been observed in an individual affected with Breast Cancer (Bhai_2021). These report(s) do not provide unequivocal conclusions about association of the variant with Hereditary Nonpolyposis Colorectal Cancer. Co-occurrences with other pathogenic variant(s) have been reported (BRCA2 c.9004G>A, p.(Glu3002Lys)) (Bhai_2021), providing supporting evidence for a benign role. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 34326862, 28135145). ClinVar contains an entry for this variant (Variation ID: 127790). Based on the evidence outlined above, the variant was classified as uncertain significance. -
Breast and/or ovarian cancer Uncertain:1
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Hereditary nonpolyposis colorectal neoplasms Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at