chr19-40396309-G-A

Position:

chr19-40396309-G-A

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS1

The NM_181882.3(PRX):c.2043C>T(p.Pro681Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000442 in 1,604,746 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0024 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00025 ( 1 hom. )

Consequence

PRX
NM_181882.3 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -7.34

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 -17 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.73).

BP6

Variant 19-40396309-G-A is Benign according to our data. Variant chr19-40396309-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 289454.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-7.34 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0024 (346/144278) while in subpopulation AFR AF= 0.00873 (336/38468). AF 95% confidence interval is 0.00797. There are 1 homozygotes in gnomad4. There are 156 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PRX	NM_181882.3 link	c.2043C>T	p.Pro681Pro	synonymous_variant	7/7	ENST00000324001.8	NP_870998.2	Q9BXM0-1
PRX	NM_001411127.1 link	c.2328C>T	p.Pro776Pro	synonymous_variant	7/7		NP_001398056.1
PRX	XM_017027047.2 link	c.1941C>T	p.Pro647Pro	synonymous_variant	4/4		XP_016882536.1
PRX	NM_020956.2 link	c.*2248C>T		3_prime_UTR_variant	6/6		NP_066007.1	Q9BXM0-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PRX	ENST00000324001.8 link	c.2043C>T	p.Pro681Pro	synonymous_variant	7/7	1	NM_181882.3	ENSP00000326018.6		Q9BXM0-1

Frequencies

GnomAD3 genomes

AF:

0.00241

AC:

347

AN:

144166

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00879

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000348

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000221

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000454

Gnomad OTH

AF:

0.000505

GnomAD3 exomes

AF:

0.000633

AC:

159

AN:

251114

Hom.:

AF XY:

0.000501

AC XY:

AN XY:

135856

show subpopulations

Gnomad AFR exome

AF:

0.00847

Gnomad AMR exome

AF:

0.000492

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:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000249

AC:

364

AN:

1460468

Hom.:

Cov.:

AF XY:

0.000227

AC XY:

165

AN XY:

726602

show subpopulations

Gnomad4 AFR exome

AF:

0.00849

Gnomad4 AMR exome

AF:

0.000650

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000174

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000180

Gnomad4 OTH exome

AF:

0.000332

GnomAD4 genome

AF:

0.00240

AC:

346

AN:

144278

Hom.:

Cov.:

AF XY:

0.00222

AC XY:

156

AN XY:

70242

show subpopulations

Gnomad4 AFR

AF:

0.00873

Gnomad4 AMR

AF:

0.000347

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000221

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000454

Gnomad4 OTH

AF:

0.000501

Alfa

AF:

0.000720

Hom.:

Bravo

AF:

0.00257

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

Benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Aug 26, 2016	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Oct 05, 2017	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Charcot-Marie-Tooth disease

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Molecular Genetics Laboratory, London Health Sciences Centre

- -

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 11, 2019

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. -

not provided

Benign:1

Likely benign, criteria provided, single submitter

not provided

Breakthrough Genomics, Breakthrough Genomics

- -

Charcot-Marie-Tooth disease type 4

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 18, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.73

CADD

Benign

0.064

DANN

Benign

0.70

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