rs61753239

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_000288.4(PEX7):c.122G>A(p.Gly41Asp) variant causes a missense change. The variant allele was found at a frequency of 0.000000839 in 1,192,376 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 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. G41V) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 34)

Exomes 𝑓: 8.4e-7 ( 0 hom. )

Consequence

PEX7
NM_000288.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.02

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

peroxisome biogenesis disorder
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
peroxisome biogenesis disorder 9B
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
rhizomelic chondrodysplasia punctata type 1
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Myriad Women’s Health, Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
adult Refsum disease
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

PEX7 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.92

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PEX7	NM_000288.4 link	c.122G>A	p.Gly41Asp	missense_variant	Exon 1 of 10	ENST00000318471.5	NP_000279.1	O00628-1Q6FGN1
PEX7	XM_006715502.3 link	c.122G>A	p.Gly41Asp	missense_variant	Exon 1 of 7		XP_006715565.1
PEX7	XM_047418874.1 link	c.122G>A	p.Gly41Asp	missense_variant	Exon 1 of 6		XP_047274830.1
PEX7	NM_001410945.1 link	c.-577G>A		upstream_gene_variant			NP_001397874.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PEX7	ENST00000318471.5 link	c.122G>A	p.Gly41Asp	missense_variant	Exon 1 of 10	1	NM_000288.4	ENSP00000315680.3		O00628-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

8.39e-7

AC:

AN:

1192376

Hom.:

Cov.:

AF XY:

0.00000173

AC XY:

AN XY:

579710

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

23912

American (AMR)

AF:

0.00

AC:

AN:

11608

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

17306

East Asian (EAS)

AF:

0.00

AC:

AN:

26408

South Asian (SAS)

AF:

0.00

AC:

AN:

47432

European-Finnish (FIN)

AF:

0.00

AC:

AN:

28554

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3388

European-Non Finnish (NFE)

AF:

0.00000102

AC:

AN:

985220

Other (OTH)

AF:

0.00

AC:

AN:

48548

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.325

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Peroxisome biogenesis disorder 9B

Uncertain:1

Oct 29, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with aspartic acid, which is acidic and polar, at codon 41 of the PEX7 protein (p.Gly41Asp). This variant is not present in population databases (gnomAD no frequency). 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: 1495627). 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.99

BayesDel_addAF

Pathogenic

0.52

BayesDel_noAF

Pathogenic

0.52

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.34

.;T;D

Eigen

Uncertain

0.58

Eigen_PC

Uncertain

0.52

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.89

D;D;D

M_CAP

Pathogenic

0.99

MetaRNN

Pathogenic

0.92

D;D;D

MetaSVM

Pathogenic

1.0

MutationAssessor

Pathogenic

3.3

M;.;M

PhyloP100

6.0

PrimateAI

Pathogenic

0.86

PROVEAN

Pathogenic

-6.3

D;D;D

REVEL

Pathogenic

0.88

Sift

Pathogenic

0.0

D;D;D

Sift4G

Uncertain

0.0020

D;D;D

Polyphen

1.0

.;.;D

Vest4

0.67

MVP

1.0

MPC

0.64

ClinPred

1.0

GERP RS

4.4

PromoterAI

0.16

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.94

gMVP

0.74

Mutation Taster

=19/81

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over