rs61753212

Variant summary

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

The NM_000287.4(PEX6):​c.517del​(p.Ser173AlafsTer33) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000882 in 1,586,768 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (β˜…β˜…). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000091 ( 0 hom. )

Consequence

PEX6
NM_000287.4 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:5

Conservation

PhyloP100: -1.95
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 6-42978633-CT-C is Pathogenic according to our data. Variant chr6-42978633-CT-C is described in ClinVar as [Pathogenic]. Clinvar id is 557701.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PEX6NM_000287.4 linkuse as main transcriptc.517del p.Ser173AlafsTer33 frameshift_variant 1/17 ENST00000304611.13 NP_000278.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PEX6ENST00000304611.13 linkuse as main transcriptc.517del p.Ser173AlafsTer33 frameshift_variant 1/171 NM_000287.4 ENSP00000303511 P1Q13608-1
PEX6ENST00000244546.4 linkuse as main transcriptc.517del p.Ser173AlafsTer33 frameshift_variant 1/151 ENSP00000244546 Q13608-2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152230
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000101
AC:
2
AN:
197224
Hom.:
0
AF XY:
0.0000183
AC XY:
2
AN XY:
109268
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000675
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000906
AC:
13
AN:
1434538
Hom.:
0
Cov.:
31
AF XY:
0.0000112
AC XY:
8
AN XY:
712646
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000487
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:
0.00000997
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152230
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
74368
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Peroxisome biogenesis disorder Pathogenic:2
Pathogenic, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpJun 11, 2021Variant summary: PEX6 c.517delA (p.Ser173AlafsX33) results in a premature termination codon, predicted to cause a truncation of the encoded protein or absence of the protein due to nonsense mediated decay, which are commonly known mechanisms for disease. Truncations downstream of this position have been classified as pathogenic by our laboratory. The variant allele was found at a frequency of 1e-05 in 197224 control chromosomes (gnomAD). c.517delA has been reported in the literature in at least two unrelated, compound heterozygous individuals affected with Zellweger Syndrome (Steinberg 2004, Ebberink 2010). These data indicate that the variant may be associated with disease. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. A ClinVar submitter (evaluation after 2014) cites the variant as pathogenic. Based on the evidence outlined above, the variant was classified as pathogenic. -
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 18, 2023This sequence change creates a premature translational stop signal (p.Ser173Alafs*33) 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: 8670792, 19877282, 21031596). This variant is present in population databases (rs61753212, gnomAD 0.007%). This premature translational stop signal has been observed in individual(s) with clinical features of PEX6-related conditions (PMID: 15542397). ClinVar contains an entry for this variant (Variation ID: 557701). For these reasons, this variant has been classified as Pathogenic. -
Peroxisome biogenesis disorder 4A (Zellweger);C3553937:Peroxisome biogenesis disorder 4B Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingCounsylApr 11, 2018- -
Zellweger spectrum disorders Pathogenic:1
Pathogenic, no assertion criteria providedclinical testingNatera, Inc.Jun 19, 2020- -
Heimler syndrome 2 Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingBaylor GeneticsJan 08, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs61753212; hg19: chr6-42946371; API