rs113910234
Variant summary
Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2
The NM_022725.4(FANCF):c.557C>T(p.Ala186Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00852 in 1,614,164 control chromosomes in the GnomAD database, including 104 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Consequence
NM_022725.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -20 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00625 AC: 952AN: 152256Hom.: 8 Cov.: 33
GnomAD3 exomes AF: 0.00830 AC: 2074AN: 250008Hom.: 20 AF XY: 0.00899 AC XY: 1219AN XY: 135540
GnomAD4 exome AF: 0.00876 AC: 12804AN: 1461790Hom.: 96 Cov.: 32 AF XY: 0.00925 AC XY: 6726AN XY: 727182
GnomAD4 genome AF: 0.00625 AC: 952AN: 152374Hom.: 8 Cov.: 33 AF XY: 0.00590 AC XY: 440AN XY: 74518
ClinVar
Submissions by phenotype
not specified Benign:3Other:1
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Fanconi anemia complementation group F Benign:2
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
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not provided Benign:2
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Fanconi anemia Benign:1
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Ovarian cancer Benign:1
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Malignant tumor of breast Benign:1
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Hereditary cancer-predisposing syndrome Benign:1
BA1, BS2, BP4_Moderate c.557C>T, located in exon 1 of the FANCF gene, is predicted to result in the substitution of alanine by valine at codon 86, p.(Ala186Val). The variant allele was found in 514/30518 alleles, with a filtering allele frequency of 1.5% at 99% confidence, within the South Asian population in the gnomAD v2.1.1 database (non-cancer data set) (BA1). The SpliceAI algorithm predicts no significant impact on splicing. The REVEL meta-predictor score for this variant (0.041) suggests that it does not affect the protein function according to Pejaver 2022 thresholds (PMID: 36413997) (BP4_Moderate). To our knowledge, neither relevant clinical data nor well-established functional studies have been reported for this variant. This variant has been observed in homozygous state in multiple healthy individuals (BS2). This variant has been reported in the ClinVar database (6x benign, 3x likely benign) and in LOVD (1x benign). Based on currently available information, the variant c.557C>T should be considered a benign variant, according to ACMG/AMP classification guidelines. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at