rs267608227

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_000287.4(PEX6):​c.1947del​(p.Ile650SerfsTer10) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000322 in 1,613,790 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

PEX6
NM_000287.4 frameshift

Scores

Not classified

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:9

Conservation

PhyloP100: 2.81
Variant links:
Genes affected
PEX6 (HGNC:8859): (peroxisomal biogenesis factor 6) This gene encodes a member of the AAA (ATPases associated with diverse cellular activities) family of ATPases. This member is a predominantly cytoplasmic protein, which plays a direct role in peroxisomal protein import and is required for PTS1 (peroxisomal targeting signal 1, a C-terminal tripeptide of the sequence ser-lys-leu) receptor activity. Mutations in this gene cause peroxisome biogenesis disorders of complementation group 4 and complementation group 6. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2015]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 18 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 6-42966795-TC-T is Pathogenic according to our data. Variant chr6-42966795-TC-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 495796.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PEX6NM_000287.4 linkuse as main transcriptc.1947del p.Ile650SerfsTer10 frameshift_variant 9/17 ENST00000304611.13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PEX6ENST00000304611.13 linkuse as main transcriptc.1947del p.Ile650SerfsTer10 frameshift_variant 9/171 NM_000287.4 P1Q13608-1
PEX6ENST00000244546.4 linkuse as main transcriptc.1947del p.Ile650SerfsTer10 frameshift_variant 9/151 Q13608-2

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
151926
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
251472
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135914
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000322
AC:
47
AN:
1461864
Hom.:
0
Cov.:
38
AF XY:
0.0000316
AC XY:
23
AN XY:
727234
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000414
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
151926
Hom.:
0
Cov.:
31
AF XY:
0.0000270
AC XY:
2
AN XY:
74196
show subpopulations
Gnomad4 AFR
AF:
0.0000242
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000302

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:9
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Pathogenic:3
Pathogenic, criteria provided, single submitterclinical testingRevvity Omics, RevvityMar 15, 2022- -
Likely pathogenic, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenAug 01, 2022PEX6: PVS1, PS4:Supporting -
Pathogenic, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Jun 29, 2018- -
Peroxisome biogenesis disorder Pathogenic:2
Pathogenic, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpSep 09, 2016Variant summary: The PEX6 c.1947delG (p.Ile650Serfs) variant results in a premature termination codon, predicted to cause a truncated or absent PEX6 protein due to nonsense mediated decay, which are commonly known mechanisms for disease. One in silico tool predicts a damaging outcome for this variant. This variant was found in 4/121404 control chromosomes at a frequency of 0.0000329, which does not exceed the estimated maximal expected allele frequency of a pathogenic PEX6 variant (0.0019365). The variant has been reported in affected individuals in the literature in the homozygous and heterozygous state. Taken together, this variant is classified as pathogenic. -
Pathogenic, criteria provided, single submitterclinical testingInvitaeNov 10, 2023This sequence change creates a premature translational stop signal (p.Ile650Serfs*10) in the PEX6 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in PEX6 are known to be pathogenic (PMID: 10408779, 21031596, 31831025). This variant is present in population databases (rs267608227, gnomAD 0.004%). This premature translational stop signal has been observed in individuals with Zellweger syndrome (PMID: 19142205, 19877282). ClinVar contains an entry for this variant (Variation ID: 495796). For these reasons, this variant has been classified as Pathogenic. -
Peroxisome biogenesis disorder 4A (Zellweger) Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingInstitute of Human Genetics Munich, Klinikum Rechts Der Isar, TU MünchenSep 18, 2023- -
Heimler syndrome 2 Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingBaylor GeneticsMar 18, 2024- -
Zellweger spectrum disorders Pathogenic:1
Pathogenic, no assertion criteria providedclinical testingNatera, Inc.Aug 26, 2020- -
Peroxisome biogenesis disorder 4B Pathogenic:1
Pathogenic, no assertion criteria providedclinical testingCounsylFeb 21, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs267608227; hg19: chr6-42934533; API