rs367543633

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_020631.6(PLEKHG5):​c.638C>T​(p.Ala213Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000583 in 1,543,180 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 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. A213A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000060 ( 1 hom. )

Consequence

PLEKHG5
NM_020631.6 missense

Scores

1
18

Clinical Significance

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

Conservation

PhyloP100: 0.551

Publications

0 publications found
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 Gene-Disease associations (from GenCC):
  • neuromuscular disease
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • Charcot-Marie-Tooth disease recessive intermediate C
    Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • neuronopathy, distal hereditary motor, autosomal recessive 4
    Inheritance: AR Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.01996842).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PLEKHG5NM_020631.6 linkc.638C>T p.Ala213Val missense_variant Exon 8 of 21 ENST00000377728.8 NP_065682.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PLEKHG5ENST00000377728.8 linkc.638C>T p.Ala213Val missense_variant Exon 8 of 21 2 NM_020631.6 ENSP00000366957.3

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152228
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000141
AC:
2
AN:
141926
AF XY:
0.0000263
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000388
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000604
AC:
84
AN:
1390952
Hom.:
1
Cov.:
35
AF XY:
0.0000759
AC XY:
52
AN XY:
685298
show subpopulations
African (AFR)
AF:
0.0000635
AC:
2
AN:
31482
American (AMR)
AF:
0.00
AC:
0
AN:
35442
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25012
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35614
South Asian (SAS)
AF:
0.00
AC:
0
AN:
78960
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
45676
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5488
European-Non Finnish (NFE)
AF:
0.0000707
AC:
76
AN:
1075614
Other (OTH)
AF:
0.000104
AC:
6
AN:
57664
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
5
10
14
19
24
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
4
8
12
16
20
<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
AF:
0.0000394
AC:
6
AN:
152228
Hom.:
0
Cov.:
34
AF XY:
0.0000269
AC XY:
2
AN XY:
74360
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41460
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.508
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000567
Hom.:
0
Bravo
AF:
0.0000529
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000778
AC:
3
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000129
AC:
1
ExAC
AF:
0.0000129
AC:
1

ClinVar

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

Submissions by phenotype

Neuronopathy, distal hereditary motor, autosomal recessive 4;C3809309:Charcot-Marie-Tooth disease recessive intermediate C Uncertain:1
May 09, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 213 of the PLEKHG5 protein (p.Ala213Val). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. 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: 245661). 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 valine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. 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. -

not provided Uncertain:1
May 05, 2016
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The A213V variant has not been published as a pathogenic variant, nor has it been reported as a benign variant to our knowledge. The A213V variant was not observed with any significant frequency in approximately 5,900 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project. Several in-silico splice prediction models predict that c.638C>T creates a cryptic donor site upstream of the natural donor site in exon 8 which may supplant the natural donor site and lead to abnormal gene splicing. However, in the absence of RNA/functional studies, the actual effect of this sequence change in this individual is unknown. If the c.638C>T variant does not effect splicing, it will result in a A213V missense variant. The A213V variant is a conservative amino acid substitution, which is not likely to impact secondary protein structure as these residues share similar properties. This substitution occurs at a position that is not conserved and Valine is seen in more distanly related species. In silico analysis predicts this variant likely does not alter the protein structure/function. Based on the currently available information, it is unclear whether this variant is a pathogenic variant or a rare benign variant. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.077
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
15
DANN
Uncertain
0.98
DEOGEN2
Benign
0.20
.;.;.;.;.;.;.;.;T;T
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.19
N
LIST_S2
Benign
0.81
T;.;T;T;T;T;.;T;T;T
M_CAP
Benign
0.019
T
MetaRNN
Benign
0.020
T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.6
.;.;.;.;.;.;.;.;L;.
PhyloP100
0.55
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-1.2
N;N;N;N;N;N;N;N;N;N
REVEL
Benign
0.022
Sift
Benign
0.087
T;T;T;T;T;T;T;T;T;T
Sift4G
Benign
0.33
T;T;T;T;T;T;T;T;T;T
Polyphen
0.046, 0.018, 0.011, 0.027
.;.;.;.;B;B;.;.;B;B
Vest4
0.071
MVP
0.072
MPC
0.26
ClinPred
0.017
T
GERP RS
0.70
Varity_R
0.021
gMVP
0.50
Mutation Taster
=92/8
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs367543633; hg19: chr1-6533468; API