6-42964462-G-T
Variant summary
Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1
The NM_000287.4(PEX6):c.2816C>A(p.Pro939Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.429 in 1,612,380 control chromosomes in the GnomAD database, including 152,134 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely benign in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P939E) has been classified as Uncertain significance.
Frequency
Consequence
NM_000287.4 missense
Scores
Clinical Significance
Conservation
Publications
- peroxisome biogenesis disorderInheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
- peroxisome biogenesis disorder 4A (Zellweger)Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, Myriad Women’s Health
- peroxisome biogenesis disorder 4BInheritance: AR Classification: DEFINITIVE Submitted by: G2P
- Heimler syndrome 2Inheritance: AR Classification: MODERATE Submitted by: G2P
- autosomal recessive cerebellar ataxia-blindness-deafness syndromeInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- Zellweger spectrum disordersInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Benign. The variant received -20 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| PEX6 | NM_000287.4 | c.2816C>A | p.Pro939Gln | missense_variant | Exon 17 of 17 | ENST00000304611.13 | NP_000278.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.402 AC: 61022AN: 151838Hom.: 12616 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.383 AC: 95103AN: 248532 AF XY: 0.394 show subpopulations
GnomAD4 exome AF: 0.432 AC: 630242AN: 1460424Hom.: 139514 Cov.: 47 AF XY: 0.433 AC XY: 314748AN XY: 726538 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.402 AC: 61059AN: 151956Hom.: 12620 Cov.: 33 AF XY: 0.398 AC XY: 29523AN XY: 74268 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Benign:3
Variant summary: The PEX6 c.2816C>A (p.Pro939Gln) variant involves the alteration of a non-conserved nucleotide. 3/4 in silico tools predict a benign outcome for this variant (SNPs&GO not captured due to low reliability index). This variant was found in 46985/120122 control chromosomes (9823 homozygotes) at a frequency of 0.391144, which is approximately 202 times the estimated maximal expected allele frequency of a pathogenic PEX6 variant (0.0019365), evidence that this variant is a benign polymorphism. In addition, multiple clinical diagnostic laboratories/reputable databases classified this variant as benign. Taken together, this variant is classified as benign.
This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease.
not specified Benign:2
Peroxisome biogenesis disorder 4A (Zellweger) Benign:2
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 and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease.
Heimler syndrome 2 Benign:1
Zellweger spectrum disorders Benign:1
Peroxisome biogenesis disorder Benign:1
Peroxisome biogenesis disorder 4B Benign:1
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at