rs1800068
Variant summary
Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBS1_Supporting
The NM_005236.3(ERCC4):c.1727G>C(p.Arg576Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00128 in 1,614,124 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_005236.3 missense
Scores
Clinical Significance
Conservation
Genome browser will be placed here
ACMG classification
Verdict is Likely_benign. Variant got -1 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ERCC4 | NM_005236.3 | c.1727G>C | p.Arg576Thr | missense_variant | Exon 8 of 11 | ENST00000311895.8 | NP_005227.1 | |
ERCC4 | XM_011522424.4 | c.1865G>C | p.Arg622Thr | missense_variant | Exon 9 of 12 | XP_011520726.1 | ||
ERCC4 | XM_047433774.1 | c.938G>C | p.Arg313Thr | missense_variant | Exon 5 of 8 | XP_047289730.1 | ||
ERCC4 | XM_011522427.2 | c.377G>C | p.Arg126Thr | missense_variant | Exon 3 of 6 | XP_011520729.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000828 AC: 126AN: 152170Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.000688 AC: 172AN: 250108Hom.: 0 AF XY: 0.000635 AC XY: 86AN XY: 135332
GnomAD4 exome AF: 0.00133 AC: 1942AN: 1461836Hom.: 1 Cov.: 32 AF XY: 0.00131 AC XY: 950AN XY: 727216
GnomAD4 genome AF: 0.000827 AC: 126AN: 152288Hom.: 0 Cov.: 32 AF XY: 0.000819 AC XY: 61AN XY: 74464
ClinVar
Submissions by phenotype
not provided Uncertain:4
The ERCC4 p.Arg576Thr variant was identified in 10 of 6374 proband chromosomes (frequency: 0.001569) from individuals with breast cancer, colorectal cancer, pancreatic ductal adenocarcinoma or head and neck squamous cell carcinoma and was present in 2 of 154 control chromosomes (frequency: 0.01299) from healthy individuals (McVeigh_2020_PMID:32008151; West_2018; Shindo_2017_PMID:28767289; Chandrasekharappa_2017_PMID:28678401). The variant was identified in dbSNP (ID: rs1800068) and ClinVar (classified as uncertain significance by Invitae). The variant was identified in control databases in 185 of 281516 chromosomes at a frequency of 0.0006572 increasing the likelihood this could be a low frequency benign variant (Genome Aggregation Database March 6, 2019, v2.1.1). The variant was observed in the following populations: Latino in 45 of 35426 chromosomes (freq: 0.00127), European (non-Finnish) in 126 of 127888 chromosomes (freq: 0.000985), Other in 7 of 7216 chromosomes (freq: 0.00097), African in 5 of 24972 chromosomes (freq: 0.0002) and European (Finnish) in 2 of 25102 chromosomes (freq: 0.00008), but was not observed in the Ashkenazi Jewish, East Asian, or South Asian populations. The p.Arg576 residue is conserved in mammals and computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) provide inconsistent predictions regarding the impact to the protein; this information is not very predictive of pathogenicity. The variant occurs outside of the splicing consensus sequence and in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) do not predict a difference in splicing. Functional assays demonstrated defective DNA repair function after UV-induced DNA damage with ERCC4 p.R576T compared to wildtype (West_2018). In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time. This variant is classified as a variant of uncertain significance. -
- -
- -
- -
Fanconi anemia complementation group Q Uncertain:2
This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -
The ERCC4 c.1727G>C (p.Arg576Thr) missense change has a maximum subpopulation frequency of 0.13% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org/). The in silico tool REVEL predicts a benign effect on protein function, but to our knowledge this prediction has not been confirmed by functional studies. This variant has been reported in individuals with breast cancer (PMID: 32008151, 34117267), head and neck squamous cell carcinoma (PMID: 28678401), and pancreatic ductal adenocarcinoma (PMID: 28767289). To our knowledge, this variant has not been reported in individuals with Fanconi anemia or Xeroderma pigmentosum. In summary, the evidence currently available is insufficient to determine the clinical significance of this variant. It has therefore been classified as of uncertain significance. -
Xeroderma pigmentosum, group F Uncertain:2
This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -
The ERCC4 c.1727G>C (p.Arg576Thr) missense change has a maximum subpopulation frequency of 0.13% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org). The in silico tool REVEL predicts a benign effect on protein function, but this prediction has not been confirmed by functional studies. This variant has been reported in individuals with breast cancer (PMID: 32008151, 34117267), head and neck squamous cell carcinoma (PMID: 28678401), and pancreatic ductal adenocarcinoma (PMID: 28767289). This variant has not been reported in individuals with Fanconi anemia or Xeroderma pigmentosum. In summary, the evidence currently available is insufficient to determine the clinical significance of this variant. It has therefore been classified as of uncertain significance. -
not specified Uncertain:1Other:1
- -
DNA sequence analysis of the ERCC4 gene demonstrated a sequence change, c.1727G>C, in exon 8 that results in an amino acid change, p.Arg576Thr. This sequence change has been described in the gnomAD database with a frequency of 0.13% in the Latino sub-population (dbSNP rs1800068). The p.Arg576Thr change has been reported in individuals with head and neck carcinoma and pancreatic cancer (PMIDs: 28678401, 28767289). The p.Arg576Thr change affects a moderately conserved amino acid residue located in a domain of the ERCC4 protein that is known to be functional. The p.Arg576Thr substitution appears to be benign using several in-silico pathogenicity prediction tools (SIFT, PolyPhen2, Align GVGD, REVEL). Due to these contrasting evidences and the lack of functional studies, the clinical significance of the p.Arg576Thr change remains unknown at this time. -
Xeroderma pigmentosum Uncertain:1
- -
Inborn genetic diseases Uncertain:1
The c.1727G>C (p.R576T) alteration is located in exon 8 (coding exon 8) of the ERCC4 gene. This alteration results from a G to C substitution at nucleotide position 1727, causing the arginine (R) at amino acid position 576 to be replaced by a threonine (T). 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
ERCC4 NM_005236.2 exon 8 p.Arg576Thr (c.1727G>C):This variant has been reported in the literature in at least 4 individuals: 1 with head/neck squamous cell carcinoma, 3 with pancreatic ductal adenocarcinoma (Chanrasekharappa 2017 PMID:28678401, Shindo 2017 PMID:28767289). This variant is present in 0.1% (29/15276) of Latino alleles in the Genome Aggregation Database (https://gnomad.broadinstitute.org/variant/16-13935659-G-C?dataset=gnomad_r3) This variant is present in ClinVar (Variation ID:134158). Evolutionary conservation and computational predictive tools for this variant are unclear. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. -
Cockayne syndrome;C0268140:Xeroderma pigmentosum, group F;C3808988:Fanconi anemia complementation group Q Benign:1
- -
Hereditary cancer-predisposing syndrome Benign:1
BA1, BP4 c.1727G>C, located in exon 8 of the ERCC4 gene, is predicted to result in the substitution of Arginine by Threonine at codon 576, p.(Arg576Thr). The variant allele was found in 112/116872 alleles, with a filtering allele frequency of 0.08% at 95% confidence, within the NFE 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 (0.27) suggests that it does not affect the protein function according Pejaver 2022 thresholds (PMID: 36413997) (BP4). It has been reported in individuals with breast cancer (PMID: 32008151, 34117267), head and neck squamous cell carcinoma (PMID: 28678401), and pancreatic ductal adenocarcinoma (PMID: 28767289). It has been reported in ClinVar (1x likely benign, 11x uncertain significance, 1x not provided). Based on currently available information, c.1727G>C is classified as a benign variant. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at