rs376703933

Variant summary

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

The NM_020631.6(PLEKHG5):​c.161G>A​(p.Ser54Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000242 in 1,613,504 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

PLEKHG5
NM_020631.6 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.119
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]

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=0.07620683).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PLEKHG5NM_020631.6 linkc.161G>A p.Ser54Asn missense_variant Exon 4 of 21 ENST00000377728.8 NP_065682.2 O94827-5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PLEKHG5ENST00000377728.8 linkc.161G>A p.Ser54Asn missense_variant Exon 4 of 21 2 NM_020631.6 ENSP00000366957.3 O94827-5

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152084
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.00316
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000361
AC:
9
AN:
249012
Hom.:
0
AF XY:
0.0000518
AC XY:
7
AN XY:
135014
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000806
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000233
AC:
34
AN:
1461302
Hom.:
0
Cov.:
32
AF XY:
0.0000248
AC XY:
18
AN XY:
726954
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000243
Gnomad4 OTH exome
AF:
0.0000662
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152202
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74420
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000451
Hom.:
0
Bravo
AF:
0.00000378
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Dec 22, 2021
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.S54N variant (also known as c.161G>A), located in coding exon 3 of the PLEKHG5 gene, results from a G to A substitution at nucleotide position 161. The serine at codon 54 is replaced by asparagine, an amino acid with highly similar properties. This amino acid position is not well conserved in available vertebrate species, and asparagine is the reference amino acid in other vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, 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
Jul 30, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces serine, which is neutral and polar, with asparagine, which is neutral and polar, at codon 54 of the PLEKHG5 protein (p.Ser54Asn). This variant is present in population databases (rs376703933, gnomAD 0.005%). 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: 536783). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The asparagine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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
0.082
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.47
CADD
Benign
16
DANN
Uncertain
0.99
DEOGEN2
Benign
0.15
.;.;.;.;.;.;.;.;T;T
Eigen
Benign
-0.38
Eigen_PC
Benign
-0.38
FATHMM_MKL
Benign
0.12
N
LIST_S2
Benign
0.81
T;.;T;T;T;T;.;T;T;T
M_CAP
Benign
0.045
D
MetaRNN
Benign
0.076
T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.85
T
MutationAssessor
Benign
1.7
.;.;.;.;.;.;.;.;L;.
PrimateAI
Benign
0.42
T
PROVEAN
Benign
-0.96
N;N;N;N;N;N;N;N;N;N
REVEL
Benign
0.074
Sift
Uncertain
0.0080
D;D;D;D;D;D;D;D;D;D
Sift4G
Uncertain
0.023
D;D;D;D;D;D;D;D;D;D
Polyphen
0.68, 0.55, 0.41, 0.55
.;.;.;.;P;P;.;.;B;P
Vest4
0.081
MVP
0.59
MPC
0.44
ClinPred
0.066
T
GERP RS
2.7
Varity_R
0.13
gMVP
0.16

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.

Other links and lift over

dbSNP: rs376703933; hg19: chr1-6535571; API