NM_005236.3:c.1765C>T
Variant summary
Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM2PP3_StrongPP5_Very_Strong
The NM_005236.3(ERCC4):c.1765C>T(p.Arg589Trp) variant causes a missense change. The variant allele was found at a frequency of 0.000129 in 1,613,958 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).
Frequency
Consequence
NM_005236.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 14 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ERCC4 | NM_005236.3 | c.1765C>T | p.Arg589Trp | missense_variant | Exon 8 of 11 | ENST00000311895.8 | NP_005227.1 | |
ERCC4 | XM_011522424.4 | c.1903C>T | p.Arg635Trp | missense_variant | Exon 9 of 12 | XP_011520726.1 | ||
ERCC4 | XM_047433774.1 | c.976C>T | p.Arg326Trp | missense_variant | Exon 5 of 8 | XP_047289730.1 | ||
ERCC4 | XM_011522427.2 | c.415C>T | p.Arg139Trp | missense_variant | Exon 3 of 6 | XP_011520729.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000723 AC: 11AN: 152112Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000642 AC: 16AN: 249106Hom.: 0 AF XY: 0.0000519 AC XY: 7AN XY: 134850
GnomAD4 exome AF: 0.000135 AC: 198AN: 1461846Hom.: 0 Cov.: 32 AF XY: 0.000122 AC XY: 89AN XY: 727230
GnomAD4 genome AF: 0.0000723 AC: 11AN: 152112Hom.: 0 Cov.: 32 AF XY: 0.0000942 AC XY: 7AN XY: 74292
ClinVar
Submissions by phenotype
Xeroderma pigmentosum, type F/Cockayne syndrome Pathogenic:2
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Cockayne syndrome;C0268140:Xeroderma pigmentosum, group F;C3808988:Fanconi anemia complementation group Q Pathogenic:1
This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 589 of the ERCC4 protein (p.Arg589Trp). This variant is present in population databases (rs147105770, gnomAD 0.02%). This missense change has been observed in individual(s) with xeroderma pigmentosa (PMID: 20221251, 21612988, 23623389, 26074087, 26884178, 29325523, 29892709). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 55829). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt ERCC4 protein function with a positive predictive value of 80%. Experimental studies have shown that this missense change affects ERCC4 function (PMID: 26453996, 30165384). For these reasons, this variant has been classified as Pathogenic. -
Xeroderma pigmentosum Pathogenic:1
Variant summary: ERCC4 c.1765C>T (p.Arg589Trp) results in a non-conservative amino acid change in the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 6.4e-05 in 249106 control chromosomes (gnomAD). This frequency is not higher than the estimated maximum expected for a pathogenic variant in ERCC4 causing Xeroderma Pigmentosum (6.4e-05 vs 0.00019), allowing no conclusion about variant significance. The variant, c.1765C>T, has been reported in the literature in multiple individuals affected with Xeroderma Pigmentosum (e.g. Ahmad_2010, Gregg_2011, Manandhar_2015, Fassihi_2016, Shanbhag_2018) and some affected individuals also had Fanconi anemia, although with varying severity (e.g. Kashiyama_2013, Popp_2018). These data indicate that the variant is very likely to be associated with disease. Publications also reported experimental evidence evaluating an impact on protein function, and demonstrated disrupted protein-protein interaction with SLX4 (Hashimoto_2015), mislocalization to the cytoplasm and strong hypersensitivity to UV and cross-linking agents in cells transfected with the variant protein (Sabatella_2018). Three clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as pathogenic (n=1) / likely pathogenic (n=2). Based on the evidence outlined above, the variant was classified as pathogenic. -
ERCC4-related disorder Pathogenic:1
The ERCC4 c.1765C>T variant is predicted to result in the amino acid substitution p.Arg589Trp. This variant has been reported in the heterozygous state along with a second ERCC4 variant in individuals with autosomal recessive xeroderma pigmentosum type F, Cockayne syndrome, and Fanconi anemia (Table 1, Ahmad et al. 2010. PubMed ID: 20221251; Table 2, Kashiyama et al. 2013. PubMed ID: 23623389; Popp et al. 2018. PubMed ID: 29325523; Table 1, Shanbhag et al. 2018. PubMed ID: 29892709; Table 1, Sabatella et al. 2018. PubMed ID: 30165384). In vitro experimental studies suggest this variant impacts protein function (Table 1, Ahmad et al. 2010. PubMed ID: 20221251; Table 2, Kashiyama et al. 2013. PubMed ID: 23623389; Popp et al. 2018. PubMed ID: 29325523). This variant is reported in 0.017% of alleles in individuals of Latino descent in gnomAD (http://gnomad.broadinstitute.org/variant/16-14029554-C-T) and is interpreted as pathogenic and likely pathogenic in ClinVar (https://preview.ncbi.nlm.nih.gov/clinvar/variation/55829/). This variant is interpreted as pathogenic. -
Xeroderma pigmentosum, group F;C1970416:XFE progeroid syndrome;C3808988:Fanconi anemia complementation group Q Pathogenic:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at