rs61735531

Positions:

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_181882.3(PRX):c.2017A>G(p.Met673Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00555 in 1,605,988 control chromosomes in the GnomAD database, including 449 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M673T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.032 ( 238 hom., cov: 32)

Exomes 𝑓: 0.0030 ( 211 hom. )

Consequence

PRX
NM_181882.3 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -0.360

Variant links:

Genes affected

PRX (HGNC:13797): (periaxin) This gene encodes a protein involved in peripheral nerve myelin upkeep. The encoded protein contains 2 PDZ domains which were named after PSD95 (post synaptic density protein), DlgA (Drosophila disc large tumor suppressor), and ZO1 (a mammalian tight junction protein). Two alternatively spliced transcript variants have been described for this gene which encode different protein isoforms and which are targeted differently in the Schwann cell. Mutations in this gene cause Charcot-Marie-Tooth neuoropathy, type 4F and Dejerine-Sottas neuropathy. [provided by RefSeq, Jul 2008]

PRX links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0017869473).

BP6

Variant 19-40396335-T-C is Benign according to our data. Variant chr19-40396335-T-C is described in ClinVar as [Benign]. Clinvar id is 329270.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-40396335-T-C is described in Lovd as [Benign].

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.11 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
PRX	NM_181882.3 linkuse as main transcript	c.2017A>G	p.Met673Val	missense_variant	7/7	ENST00000324001.8
PRX	NM_001411127.1 linkuse as main transcript	c.2302A>G	p.Met768Val	missense_variant	7/7
PRX	XM_017027047.2 linkuse as main transcript	c.1915A>G	p.Met639Val	missense_variant	4/4
PRX	NM_020956.2 linkuse as main transcript	c.*2222A>G		3_prime_UTR_variant	6/6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PRX	ENST00000324001.8 linkuse as main transcript	c.2017A>G	p.Met673Val	missense_variant	7/7	1	NM_181882.3	A2	Q9BXM0-1

Frequencies

GnomAD3 genomes

AF:

0.0315

AC:

4546

AN:

144162

Hom.:

238

Cov.:

show subpopulations

Gnomad AFR

AF:

0.113

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00946

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000664

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00840

Gnomad NFE

AF:

0.000347

Gnomad OTH

AF:

0.0196

GnomAD3 exomes

AF:

0.00779

AC:

1957

AN:

251120

Hom.:

AF XY:

0.00591

AC XY:

803

AN XY:

135868

show subpopulations

Gnomad AFR exome

AF:

0.109

Gnomad AMR exome

AF:

0.00434

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000163

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000246

Gnomad OTH exome

AF:

0.00376

GnomAD4 exome

AF:

0.00298

AC:

4356

AN:

1461702

Hom.:

211

Cov.:

AF XY:

0.00256

AC XY:

1862

AN XY:

727144

show subpopulations

Gnomad4 AFR exome

AF:

0.105

Gnomad4 AMR exome

AF:

0.00512

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000116

Gnomad4 OTH exome

AF:

0.00709

GnomAD4 genome

AF:

0.0316

AC:

4553

AN:

144286

Hom.:

238

Cov.:

AF XY:

0.0300

AC XY:

2109

AN XY:

70236

show subpopulations

Gnomad4 AFR

AF:

0.113

Gnomad4 AMR

AF:

0.00945

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000664

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000348

Gnomad4 OTH

AF:

0.0194

Alfa

AF:

0.00496

Hom.:

Bravo

AF:

0.0336

ESP6500AA

AF:

0.109

AC:

480

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.00974

AC:

1183

Asia WGS

AF:

0.00520

AC:

AN:

3478

EpiCase

AF:

0.000273

EpiControl

AF:

0.000237

ClinVar

Significance: Benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Benign, criteria provided, single submitter	clinical testing	GeneDx	Mar 03, 2015	- -
Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

Athena Diagnostics

Mar 03, 2021

- -

Charcot-Marie-Tooth disease

Benign:1

Benign, criteria provided, single submitter

clinical testing

Molecular Genetics Laboratory, London Health Sciences Centre

- -

Charcot-Marie-Tooth disease type 4F

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Charcot-Marie-Tooth disease type 4

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 24, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.097

BayesDel_addAF

Benign

-0.74

BayesDel_noAF

Benign

-0.75

CADD

Benign

7.5

DANN

Benign

0.39

DEOGEN2

Benign

0.12

Eigen

Benign

-0.71

Eigen_PC

Benign

-0.68

FATHMM_MKL

Benign

0.32

LIST_S2

Benign

0.67

MetaRNN

Benign

0.0018

MetaSVM

Benign

-0.88

MutationAssessor

Benign

0.79

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.33

PROVEAN

Benign

-0.080

REVEL

Benign

0.038

Sift

Benign

0.54

Sift4G

Benign

0.19

Polyphen

0.0020

Vest4

0.19

MVP

0.18

MPC

0.23

ClinPred

0.0011

GERP RS

0.78

Varity_R

0.084

gMVP

0.21

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