rs757852291

Positions:

chr6-136822751-C-T

Variant summary

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

The ENST00000318471.5(PEX7):c.86C>T(p.Pro29Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000296 in 1,488,770 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P29A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 35)

Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

PEX7
ENST00000318471.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:6

Conservation

PhyloP100: 1.40

Variant links:

Genes affected

PEX7 (HGNC:8860): (peroxisomal biogenesis factor 7) This gene encodes the cytosolic receptor for the set of peroxisomal matrix enzymes targeted to the organelle by the peroxisome targeting signal 2 (PTS2). Defects in this gene cause peroxisome biogenesis disorders (PBDs), which are characterized by multiple defects in peroxisome function. There are at least 14 complementation groups for PBDs, with more than one 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 have been associated with PBD complementation group 11 (PBD-CG11) disorders, rhizomelic chondrodysplasia punctata type 1 (RCDP1), and Refsum disease (RD). [provided by RefSeq, Oct 2008]

PEX7 links:

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/exons	MANE	Protein
PEX7	NM_000288.4 linkuse as main transcript	c.86C>T	p.Pro29Leu	missense_variant	1/10	ENST00000318471.5	NP_000279.1
PEX7	XM_006715502.3 linkuse as main transcript	c.86C>T	p.Pro29Leu	missense_variant	1/7		XP_006715565.1
PEX7	XM_047418874.1 linkuse as main transcript	c.86C>T	p.Pro29Leu	missense_variant	1/6		XP_047274830.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PEX7	ENST00000318471.5 linkuse as main transcript	c.86C>T	p.Pro29Leu	missense_variant	1/10	1	NM_000288.4	ENSP00000315680	P1	O00628-1
PEX7	ENST00000367756.8 linkuse as main transcript	c.86C>T	p.Pro29Leu	missense_variant	1/4	3		ENSP00000356730
PEX7	ENST00000541292.6 linkuse as main transcript	c.86C>T	p.Pro29Leu	missense_variant, NMD_transcript_variant	1/11	5		ENSP00000441004		O00628-2
PEX7	ENST00000678593.1 linkuse as main transcript	c.86C>T	p.Pro29Leu	missense_variant, NMD_transcript_variant	1/8			ENSP00000503841

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

151960

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000725

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:

0.00318

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000337

AC:

AN:

89132

Hom.:

AF XY:

0.0000593

AC XY:

AN XY:

50574

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:

0.0000566

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000605

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000292

AC:

AN:

1336702

Hom.:

Cov.:

AF XY:

0.0000303

AC XY:

AN XY:

659500

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:

0.0000401

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000321

Gnomad4 OTH exome

AF:

0.0000361

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152068

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74370

show subpopulations

Gnomad4 AFR

AF:

0.0000722

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

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000281

AC:

Asia WGS

AF:

0.000290

AC:

AN:

3462

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Mayo Clinic Laboratories, Mayo Clinic	Feb 01, 2023	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Oct 24, 2016	- -

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 26, 2021

The c.86C>T (p.P29L) alteration is located in exon 1 (coding exon 1) of the PEX7 gene. This alteration results from a C to T substitution at nucleotide position 86, causing the proline (P) at amino acid position 29 to be replaced by a leucine (L). The in silico prediction for the p.P29L alteration is inconclusive. Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Phytanic acid storage disease;C1859133:Rhizomelic chondrodysplasia punctata type 1;C2749346:Peroxisome biogenesis disorder 9B

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Oct 31, 2018

- -

Peroxisome biogenesis disorder 9B

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 15, 2022

This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 29 of the PEX7 protein (p.Pro29Leu). This variant is present in population databases (rs757852291, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with PEX7-related conditions. ClinVar contains an entry for this variant (Variation ID: 498141). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). 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. -

Rhizomelic chondrodysplasia punctata

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

Natera, Inc.

Sep 16, 2020

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Uncertain

0.15

BayesDel_noAF

Pathogenic

0.15

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.22

.;T;D

Eigen

Uncertain

0.55

Eigen_PC

Uncertain

0.53

FATHMM_MKL

Uncertain

0.79

LIST_S2

Benign

0.82

T;T;T

M_CAP

Pathogenic

0.90

MetaRNN

Uncertain

0.52

D;D;D

MetaSVM

Uncertain

0.62

MutationAssessor

Uncertain

2.6

M;.;M

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Pathogenic

0.85

PROVEAN

Pathogenic

-5.8

D;D;D

REVEL

Uncertain

0.52

Sift

Uncertain

0.012

D;D;D

Sift4G

Uncertain

0.022

D;D;T

Polyphen

1.0

.;.;D

Vest4

0.22

MutPred

0.45

Loss of glycosylation at P29 (P = 0.07);Loss of glycosylation at P29 (P = 0.07);Loss of glycosylation at P29 (P = 0.07);

MVP

1.0

MPC

0.37

ClinPred

0.93

GERP RS

4.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.51

gMVP

0.67

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over