rs778791031

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000287.4(PEX6):​c.488G>C​(p.Arg163Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000128 in 1,565,176 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: š‘“ 0.00022 ( 0 hom., cov: 31)
Exomes š‘“: 0.00012 ( 0 hom. )

Consequence

PEX6
NM_000287.4 missense

Scores

3
8
8

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:6B:1

Conservation

PhyloP100: 3.22
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 Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PEX6NM_000287.4 linkc.488G>C p.Arg163Pro missense_variant Exon 1 of 17 ENST00000304611.13 NP_000278.3 Q13608-1A0A024RD09

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PEX6ENST00000304611.13 linkc.488G>C p.Arg163Pro missense_variant Exon 1 of 17 1 NM_000287.4 ENSP00000303511.8 Q13608-1
PEX6ENST00000244546.4 linkc.488G>C p.Arg163Pro missense_variant Exon 1 of 15 1 ENSP00000244546.4 Q13608-2

Frequencies

GnomAD3 genomes
AF:
0.000223
AC:
34
AN:
152204
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000965
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:
0.0000941
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000426
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000114
AC:
19
AN:
167016
Hom.:
0
AF XY:
0.0000541
AC XY:
5
AN XY:
92340
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.000235
Gnomad NFE exome
AF:
0.000236
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000117
AC:
166
AN:
1412972
Hom.:
0
Cov.:
31
AF XY:
0.000116
AC XY:
81
AN XY:
700368
show subpopulations
Gnomad4 AFR exome
AF:
0.0000308
Gnomad4 AMR exome
AF:
0.0000262
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.000105
Gnomad4 NFE exome
AF:
0.000143
Gnomad4 OTH exome
AF:
0.0000678
GnomAD4 genome
AF:
0.000223
AC:
34
AN:
152204
Hom.:
0
Cov.:
31
AF XY:
0.000202
AC XY:
15
AN XY:
74366
show subpopulations
Gnomad4 AFR
AF:
0.0000965
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000941
Gnomad4 NFE
AF:
0.000426
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000582
Hom.:
0
Bravo
AF:
0.000128
ExAC
AF:
0.0000767
AC:
9

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:6Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:2
Jan 23, 2018
Eurofins Ntd Llc (ga)
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Aug 22, 2019
Revvity Omics, Revvity
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Peroxisome biogenesis disorder 4A (Zellweger);C3553937:Peroxisome biogenesis disorder 4B Uncertain:1
Jan 04, 2017
Counsyl
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Peroxisome biogenesis disorder 4A (Zellweger);C3553937:Peroxisome biogenesis disorder 4B;C4225267:Heimler syndrome 2 Uncertain:1
Mar 26, 2024
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Zellweger spectrum disorders Uncertain:1
Jan 21, 2020
Natera, Inc.
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Peroxisome biogenesis disorder Uncertain:1
Dec 16, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with proline, which is neutral and non-polar, at codon 163 of the PEX6 protein (p.Arg163Pro). This variant is present in population databases (rs778791031, gnomAD 0.04%). This variant has not been reported in the literature in individuals affected with PEX6-related conditions. ClinVar contains an entry for this variant (Variation ID: 550215). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Inborn genetic diseases Benign:1
Oct 16, 2021
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.096
BayesDel_addAF
Benign
0.00077
T
BayesDel_noAF
Pathogenic
0.19
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.23
T;.
Eigen
Uncertain
0.30
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Benign
0.76
T;T
M_CAP
Pathogenic
0.50
D
MetaRNN
Uncertain
0.44
T;T
MetaSVM
Uncertain
0.67
D
MutationAssessor
Benign
2.0
M;M
PrimateAI
Pathogenic
0.83
D
PROVEAN
Benign
-1.3
N;N
REVEL
Uncertain
0.46
Sift
Uncertain
0.021
D;T
Sift4G
Benign
0.34
T;T
Polyphen
1.0
D;.
Vest4
0.48
MVP
0.97
MPC
0.49
ClinPred
0.24
T
GERP RS
4.7
Varity_R
0.27
gMVP
0.76

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: rs778791031; hg19: chr6-42946401; API