chr9-97675000-C-G
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Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong
The NM_000380.4(XPA):c.*439G>C variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000019 in 526,096 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000021 ( 0 hom. )
Consequence
XPA
NM_000380.4 3_prime_UTR
NM_000380.4 3_prime_UTR
Scores
2
Clinical Significance
Conservation
PhyloP100: -1.60
Genes affected
XPA (HGNC:12814): (XPA, DNA damage recognition and repair factor) This gene encodes a zinc finger protein plays a central role in nucleotide excision repair (NER), a specialized type of DNA repair. NER is responsible for repair of UV radiation-induced photoproducts and DNA adducts induced by chemical carcinogens and chemotherapeutic drugs. The encoded protein interacts with DNA and several NER proteins, acting as a scaffold to assemble the NER incision complex at sites of DNA damage. Mutations in this gene cause Xeroderma pigmentosum complementation group A (XP-A), an autosomal recessive skin disorder featuring hypersensitivity to sunlight and increased risk for skin cancer. [provided by RefSeq, Aug 2017]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -2 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
XPA | NM_000380.4 | c.*439G>C | 3_prime_UTR_variant | 6/6 | ENST00000375128.5 | NP_000371.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
XPA | ENST00000375128.5 | c.*439G>C | 3_prime_UTR_variant | 6/6 | 1 | NM_000380.4 | ENSP00000364270 | P1 | ||
XPA | ENST00000462523.5 | c.*697G>C | 3_prime_UTR_variant, NMD_transcript_variant | 7/7 | 5 | ENSP00000433006 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152202Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000153 AC: 2AN: 130442Hom.: 0 AF XY: 0.0000140 AC XY: 1AN XY: 71204
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GnomAD4 exome AF: 0.0000214 AC: 8AN: 373776Hom.: 0 Cov.: 0 AF XY: 0.0000195 AC XY: 4AN XY: 205184
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GnomAD4 genome AF: 0.0000131 AC: 2AN: 152320Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74486
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Xeroderma pigmentosum group A Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 15, 2018 | 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. - |
Computational scores
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at