rs111724922

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020631.6(PLEKHG5):​c.2390C>T​(p.Thr797Met) variant causes a missense change. The variant allele was found at a frequency of 0.000049 in 1,612,936 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 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. T797T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000044 ( 0 hom. )

Consequence

PLEKHG5
NM_020631.6 missense

Scores

5
14

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 3.65

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: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.1789166).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PLEKHG5NM_020631.6 linkc.2390C>T p.Thr797Met missense_variant Exon 20 of 21 ENST00000377728.8 NP_065682.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PLEKHG5ENST00000377728.8 linkc.2390C>T p.Thr797Met missense_variant Exon 20 of 21 2 NM_020631.6 ENSP00000366957.3

Frequencies

GnomAD3 genomes
AF:
0.0000854
AC:
13
AN:
152166
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.000118
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000645
AC:
16
AN:
247960
AF XY:
0.0000668
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000174
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000628
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.0000438
AC:
64
AN:
1460652
Hom.:
0
Cov.:
33
AF XY:
0.0000330
AC XY:
24
AN XY:
726616
show subpopulations
African (AFR)
AF:
0.000119
AC:
4
AN:
33478
American (AMR)
AF:
0.000112
AC:
5
AN:
44690
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26128
East Asian (EAS)
AF:
0.0000756
AC:
3
AN:
39690
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86236
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52496
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000387
AC:
43
AN:
1111810
Other (OTH)
AF:
0.000133
AC:
8
AN:
60356
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.466
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
Variant carriers
0
2
4
6
8
10
<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:
0.0000985
AC:
15
AN:
152284
Hom.:
0
Cov.:
33
AF XY:
0.000107
AC XY:
8
AN XY:
74450
show subpopulations
African (AFR)
AF:
0.000120
AC:
5
AN:
41550
American (AMR)
AF:
0.000131
AC:
2
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4810
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000118
AC:
8
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.544
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000718
ExAC
AF:
0.0000659
AC:
8
Asia WGS
AF:
0.00144
AC:
5
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Dec 17, 2020
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Charcot-Marie-Tooth disease recessive intermediate C Uncertain:1
May 16, 2019
Baylor Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

Inborn genetic diseases Uncertain:1
May 17, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.2390C>T (p.T797M) alteration is located in exon 20 (coding exon 19) of the PLEKHG5 gene. This alteration results from a C to T substitution at nucleotide position 2390, causing the threonine (T) at amino acid position 797 to be replaced by a methionine (M). 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
Jul 11, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces threonine, which is neutral and polar, with methionine, which is neutral and non-polar, at codon 797 of the PLEKHG5 protein (p.Thr797Met). This variant is present in population databases (rs111724922, gnomAD 0.02%). 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: 468907). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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
0.11
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.26
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.26
.;.;.;.;.;.;.;.;T
Eigen
Benign
0.0036
Eigen_PC
Benign
-0.038
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Benign
0.81
T;.;T;T;T;T;.;T;T
M_CAP
Uncertain
0.15
D
MetaRNN
Benign
0.18
T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.68
T
MutationAssessor
Benign
1.9
.;.;.;.;.;.;.;.;L
PhyloP100
3.6
PrimateAI
Benign
0.45
T
PROVEAN
Benign
-1.9
N;N;N;N;N;N;N;N;N
REVEL
Benign
0.22
Sift
Uncertain
0.0010
D;D;D;D;D;D;D;D;D
Sift4G
Uncertain
0.022
D;D;D;D;D;D;D;D;D
Polyphen
1.0, 1.0
.;.;.;.;D;D;.;.;D
Vest4
0.29
MVP
0.68
MPC
0.94
ClinPred
0.14
T
GERP RS
4.6
Varity_R
0.036
gMVP
0.38
Mutation Taster
=89/11
polymorphism

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

Other links and lift over

dbSNP: rs111724922; hg19: chr1-6528506; API