8-76980805-G-A
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Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong
The NM_000318.3(PEX2):c.*2456C>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,192 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 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control
Consequence
PEX2
NM_000318.3 3_prime_UTR
NM_000318.3 3_prime_UTR
Scores
2
Clinical Significance
Conservation
PhyloP100: 1.02
Genes affected
PEX2 (HGNC:9717): (peroxisomal biogenesis factor 2) This gene encodes an integral peroxisomal membrane protein required for peroxisome biogenesis. The protein is thought to be involved in peroxisomal matrix protein import. Mutations in this gene result in one form of Zellweger syndrome and infantile Refsum disease. Alternative splicing results in multiple transcript variants encoding the same protein. [provided by RefSeq, Jul 2008]
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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=-0.81).
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| PEX2 | NM_000318.3 | c.*2456C>T | 3_prime_UTR_variant | 4/4 | ENST00000357039.9 | NP_000309.2 | ||
| PEX2 | NM_001079867.2 | c.*2456C>T | 3_prime_UTR_variant | 3/3 | NP_001073336.2 | |||
| PEX2 | NM_001172086.2 | c.*2456C>T | 3_prime_UTR_variant | 5/5 | NP_001165557.2 | |||
| PEX2 | NM_001172087.2 | c.*2456C>T | 3_prime_UTR_variant | 3/3 | NP_001165558.2 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| PEX2 | ENST00000357039.9 | c.*2456C>T | 3_prime_UTR_variant | 4/4 | 1 | NM_000318.3 | ENSP00000349543 | P1 |
Frequencies
GnomAD3 genomes 0.00000657 AC: 1AN: 152192Hom.: 0 Cov.: 33
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GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0AN: 2Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0AN XY: 2
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GnomAD4 genome 0.00000657 AC: 1AN: 152192Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74332
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Peroxisome biogenesis disorder 5A (Zellweger) Uncertain:1
| Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 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