rs138568975
Variant summary
Our verdict is Benign. Variant got -8 ACMG points: 8P and 16B. PVS1BP6_Very_StrongBS1BS2
The NM_000286.3(PEX12):c.681-3_681-2del variant causes a splice acceptor, splice polypyrimidine tract, intron change. The variant allele was found at a frequency of 0.00203 in 1,613,808 control chromosomes in the GnomAD database, including 42 homozygotes. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: 𝑓 0.010 ( 18 hom., cov: 32)
Exomes 𝑓: 0.0012 ( 24 hom. )
Consequence
PEX12
NM_000286.3 splice_acceptor, splice_polypyrimidine_tract, intron
NM_000286.3 splice_acceptor, splice_polypyrimidine_tract, intron
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 6.49
Genes affected
PEX12 (HGNC:8854): (peroxisomal biogenesis factor 12) This gene belongs to the peroxin-12 family. Peroxins (PEXs) are proteins that are essential for the assembly of functional peroxisomes. The peroxisome biogenesis disorders (PBDs) are a group of genetically heterogeneous autosomal recessive, lethal diseases characterized by multiple defects in peroxisome function. The peroxisomal biogenesis disorders are a heterogeneous group with at least 14 complementation groups and with more than 1 phenotype being observed in cases falling into particular complementation groups. Although the clinical features of PBD patients vary, cells from all PBD patients exhibit a defect in the import of one or more classes of peroxisomal matrix proteins into the organelle. Defects in this gene are a cause of Zellweger syndrome (ZWS). [provided by RefSeq, Oct 2008]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -8 ACMG points.
PVS1
?
Splicing variant, LoF is a know mechanism of disease,
BP6
?
Variant 17-35576182-CTG-C is Benign according to our data. Variant chr17-35576182-CTG-C is described in ClinVar as [Likely_benign]. Clinvar id is 92775.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
?
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0101 (1531/152254) while in subpopulation AFR AF= 0.0348 (1444/41536). AF 95% confidence interval is 0.0333. There are 18 homozygotes in gnomad4. There are 768 alleles in male gnomad4 subpopulation. This position pass quality control queck.
BS2
?
High Homozygotes in GnomAd at 18 AR gene
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
PEX12 | NM_000286.3 | c.681-3_681-2del | splice_acceptor_variant, splice_polypyrimidine_tract_variant, intron_variant | ENST00000225873.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
PEX12 | ENST00000225873.9 | c.681-3_681-2del | splice_acceptor_variant, splice_polypyrimidine_tract_variant, intron_variant | 1 | NM_000286.3 | P1 | |||
PEX12 | ENST00000586663.2 | c.681-3_681-2del | splice_acceptor_variant, splice_polypyrimidine_tract_variant, intron_variant | 1 |
Frequencies
GnomAD3 genomes ? AF: 0.0100 AC: 1525AN: 152136Hom.: 18 Cov.: 32
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GnomAD3 exomes AF: 0.00267 AC: 663AN: 248770Hom.: 10 AF XY: 0.00193 AC XY: 260AN XY: 134684
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GnomAD4 exome AF: 0.00119 AC: 1737AN: 1461554Hom.: 24 AF XY: 0.00106 AC XY: 770AN XY: 727064
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ClinVar
Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not provided Benign:3
Likely benign, criteria provided, single submitter | clinical testing | GeneDx | Nov 18, 2020 | - - |
Benign, no assertion criteria provided | clinical testing | Mayo Clinic Laboratories, Mayo Clinic | Oct 14, 2016 | - - |
Benign, criteria provided, single submitter | clinical testing | ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories | Nov 06, 2023 | - - |
not specified Benign:2
Benign, criteria provided, single submitter | clinical testing | Women's Health and Genetics/Laboratory Corporation of America, LabCorp | Dec 20, 2021 | Variant summary: PEX12 c.681-3_681-2delCA alters a nucleotide located close to a canonical splice site and therefore could affect mRNA splicing, leading to a significantly altered protein sequence. The variant allele was found at a frequency of 0.0027 in 248770 control chromosomes, predominantly at a frequency of 0.036 within the African or African-American subpopulation in the gnomAD database, including 10 homozygotes. The observed variant frequency within African or African-American control individuals in the gnomAD database is approximately 22.77 fold of the estimated maximal expected allele frequency for a pathogenic variant in PEX12 causing Zellweger Syndrome phenotype (0.0016), strongly suggesting that the variant is a benign polymorphism found primarily in populations of African or African-American origin. 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 benign/likely benign. Based on the evidence outlined above, the variant was classified as benign. - |
Benign, criteria provided, single submitter | clinical testing | Eurofins Ntd Llc (ga) | Mar 11, 2013 | - - |
Peroxisome biogenesis disorder 3A (Zellweger) Benign:1
Benign, criteria provided, single submitter | clinical testing | Invitae | Jan 31, 2024 | - - |
Computational scores
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Details are displayed if max score is > 0.2
DS_AG_spliceai
Position offset: -7
DS_AL_spliceai
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Find out detailed SpliceAI scores and Pangolin per-transcript scores at