rs377201471
Variant summary
Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong
The NM_032444.4(SLX4):c.996G>T(p.Gln332His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000139 in 1,614,106 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. Q332Q) has been classified as Likely benign.
Frequency
Consequence
NM_032444.4 missense
Scores
Clinical Significance
Conservation
Publications
- Fanconi anemia complementation group PInheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, G2P
- Fanconi anemiaInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- familial ovarian cancerInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
- hereditary breast carcinomaInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Likely_benign. The variant received -4 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
SLX4 | ENST00000294008.4 | c.996G>T | p.Gln332His | missense_variant | Exon 5 of 15 | 5 | NM_032444.4 | ENSP00000294008.3 | ||
SLX4 | ENST00000466154.5 | n.2217G>T | non_coding_transcript_exon_variant | Exon 3 of 7 | 1 | |||||
SLX4 | ENST00000486524.1 | n.2550G>T | non_coding_transcript_exon_variant | Exon 4 of 4 | 2 | |||||
SLX4 | ENST00000697858.1 | n.337G>T | non_coding_transcript_exon_variant | Exon 3 of 3 |
Frequencies
GnomAD3 genomes AF: 0.0000789 AC: 12AN: 152136Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.000123 AC: 31AN: 251402 AF XY: 0.000110 show subpopulations
GnomAD4 exome AF: 0.000145 AC: 212AN: 1461852Hom.: 0 Cov.: 31 AF XY: 0.000135 AC XY: 98AN XY: 727224 show subpopulations
GnomAD4 genome AF: 0.0000788 AC: 12AN: 152254Hom.: 0 Cov.: 32 AF XY: 0.0000537 AC XY: 4AN XY: 74442 show subpopulations
ClinVar
Submissions by phenotype
Fanconi anemia complementation group P Uncertain:3
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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
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not specified Uncertain:1
This sequence change does not appear to have been previously described in patients with SLX4-related disorders and has been described in the gnomAD database with a frequency of 0.02% in the European population (dbSNP rs377201471). The p.Gln332His change affects a poorly conserved amino acid residue located in a domain of the SLX4 protein that is not known to be functional. The p.Gln332His substitution appears to be benign using several in-silico pathogenicity prediction tools (SIFT, PolyPhen2, Align GVGD, REVEL). Due to the lack of functional studies, the clinical significance of the p.Gln332His change remains unknown at this time. -
Fanconi anemia Uncertain:1
This sequence change replaces glutamine, which is neutral and polar, with histidine, which is basic and polar, at codon 332 of the SLX4 protein (p.Gln332His). This variant is present in population databases (rs377201471, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with SLX4-related conditions. ClinVar contains an entry for this variant (Variation ID: 456343). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at