chr1-6470570-G-A

Position:

chr1-6470570-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020631.6(PLEKHG5):c.1616C>T(p.Ala539Val) variant causes a missense change. The variant allele was found at a frequency of 0.00019 in 1,571,862 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. A539A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00019 ( 0 hom. )

Consequence

PLEKHG5
NM_020631.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:7

Conservation

PhyloP100: 4.95

Variant links:

Genes affected

PLEKHG5 (HGNC:29105): (pleckstrin homology and RhoGEF domain containing G5) This gene encodes a protein that activates the nuclear factor kappa B (NFKB1) signaling pathway. Mutations in this gene are associated with autosomal recessive distal spinal muscular atrophy. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2012]

PLEKHG5 links:

PLEKHG5 (HGNC:):

PLEKHG5 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.1267251).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PLEKHG5	NM_020631.6 linkuse as main transcript	c.1616C>T	p.Ala539Val	missense_variant	15/21	ENST00000377728.8	NP_065682.2	O94827-5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PLEKHG5	ENST00000377728.8 linkuse as main transcript	c.1616C>T	p.Ala539Val	missense_variant	15/21	2	NM_020631.6	ENSP00000366957.3		O94827-5

Frequencies

GnomAD3 genomes

AF:

0.000145

AC:

AN:

152096

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000265

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000248

AC:

AN:

185476

Hom.:

AF XY:

0.000213

AC XY:

AN XY:

103384

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000354

Gnomad ASJ exome

AF:

0.000108

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000508

Gnomad OTH exome

AF:

0.000197

GnomAD4 exome

AF:

0.000194

AC:

276

AN:

1419648

Hom.:

Cov.:

AF XY:

0.000190

AC XY:

134

AN XY:

705106

show subpopulations

Gnomad4 AFR exome

AF:

0.0000312

Gnomad4 AMR exome

AF:

0.0000513

Gnomad4 ASJ exome

AF:

0.0000387

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000241

Gnomad4 OTH exome

AF:

0.000118

GnomAD4 genome

AF:

0.000145

AC:

AN:

152214

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74422

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000265

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000138

Hom.:

Bravo

AF:

0.000200

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000591

AC:

ExAC

AF:

0.000225

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:3

Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Jul 20, 2017	- -
Uncertain significance, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Nov 05, 2024	In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Mar 13, 2019

The p.Ala539Val variant (rs370515061) has not been reported in the medical literature, gene specific variation databases, nor has it been previously identified by our laboratory. This variant is listed in the Genome Aggregation Database (gnomAD) with an overall population frequency of 0.04 percent (identified on 45 out of 100,098 chromosomes) and has been reported to the ClinVar database (Variation ID: 194553). The alanine at position 539 is moderately conserved and computational analyses of the effects of the p.Ala539Val variant on protein structure and function is neutral (SIFT: tolerated, PolyPhen-2: benign). Altogether, there is not enough evidence to classify the p.Ala539Val variant with certainty. -

Neuronopathy, distal hereditary motor, autosomal recessive 4

Uncertain:1

Uncertain significance, 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 16, 2024

The c.1616C>T (p.A539V) alteration is located in exon 15 (coding exon 14) of the PLEKHG5 gene. This alteration results from a C to T substitution at nucleotide position 1616, causing the alanine (A) at amino acid position 539 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Neuronopathy, distal hereditary motor, autosomal recessive 4;C3809309:Charcot-Marie-Tooth disease recessive intermediate C

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Oct 18, 2022

This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 539 of the PLEKHG5 protein (p.Ala539Val). This variant is present in population databases (rs370515061, gnomAD 0.04%). This variant has not been reported in the literature in individuals affected with PLEKHG5-related conditions. ClinVar contains an entry for this variant (Variation ID: 194553). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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

Benign

0.12

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.37

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.39

.;.;.;.;.;.;.;.;T;T

Eigen

Benign

-0.0060

Eigen_PC

Benign

0.12

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.80

T;.;T;T;T;T;.;T;T;T

M_CAP

Uncertain

0.098

MetaRNN

Benign

0.13

T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.92

MutationAssessor

Benign

1.1

.;.;.;.;.;.;.;.;L;.

PrimateAI

Benign

0.46

PROVEAN

Benign

-2.1

N;N;N;N;N;N;N;N;N;N

REVEL

Benign

0.10

Sift

Benign

0.11

T;T;T;T;T;T;T;T;T;T

Sift4G

Benign

0.14

T;T;T;T;T;T;T;T;T;T

Polyphen

0.79, 0.30, 0.69, 0.023

.;.;.;.;P;B;.;.;P;B

Vest4

0.27

MVP

0.65

MPC

0.90

ClinPred

0.15

GERP RS

3.8

Varity_R

0.088

gMVP

0.82

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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