16-13920199-A-G
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_005236.3(ERCC4):c.34A>G(p.Met12Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000124 in 1,607,004 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M12I) has been classified as Uncertain significance.
Frequency
Consequence
NM_005236.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ERCC4 | NM_005236.3 | c.34A>G | p.Met12Val | missense_variant | Exon 1 of 11 | ENST00000311895.8 | NP_005227.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152212Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000246 AC: 6AN: 243986Hom.: 0 AF XY: 0.0000150 AC XY: 2AN XY: 132992
GnomAD4 exome AF: 0.0000131 AC: 19AN: 1454792Hom.: 0 Cov.: 35 AF XY: 0.0000166 AC XY: 12AN XY: 724092
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152212Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1AN XY: 74360
ClinVar
Submissions by phenotype
Cockayne syndrome;C0268140:Xeroderma pigmentosum, group F;C3808988:Fanconi anemia complementation group Q Uncertain:1
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. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with ERCC4-related conditions. This variant is present in population databases (rs750358005, gnomAD 0.01%). This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 12 of the ERCC4 protein (p.Met12Val). -
Inborn genetic diseases Uncertain:1
The c.34A>G (p.M12V) alteration is located in exon 1 (coding exon 1) of the ERCC4 gene. This alteration results from a A to G substitution at nucleotide position 34, causing the methionine (M) at amino acid position 12 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Xeroderma pigmentosum, group F;C1970416:XFE progeroid syndrome;C3808988:Fanconi anemia complementation group Q Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at