1-6470576-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_020631.6(PLEKHG5):​c.1610G>A​(p.Arg537Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000503 in 1,589,710 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000042 ( 0 hom. )

Consequence

PLEKHG5
NM_020631.6 missense

Scores

1
11
7

Clinical Significance

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

Conservation

PhyloP100: 4.14

Publications

1 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 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PLEKHG5NM_020631.6 linkc.1610G>A p.Arg537Gln missense_variant Exon 15 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.1610G>A p.Arg537Gln missense_variant Exon 15 of 21 2 NM_020631.6 ENSP00000366957.3 O94827-5

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152172
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000417
AC:
6
AN:
1437538
Hom.:
0
Cov.:
35
AF XY:
0.00000280
AC XY:
2
AN XY:
715146
show subpopulations
African (AFR)
AF:
0.000122
AC:
4
AN:
32760
American (AMR)
AF:
0.00
AC:
0
AN:
42602
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26004
East Asian (EAS)
AF:
0.0000263
AC:
1
AN:
37966
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85198
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
41242
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5466
European-Non Finnish (NFE)
AF:
9.04e-7
AC:
1
AN:
1106730
Other (OTH)
AF:
0.00
AC:
0
AN:
59570
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
1
2
2
3
4
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:
0.0000131
AC:
2
AN:
152172
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74344
show subpopulations
African (AFR)
AF:
0.0000482
AC:
2
AN:
41454
American (AMR)
AF:
0.00
AC:
0
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68004
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756

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 03, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1610G>A (p.R537Q) alteration is located in exon 15 (coding exon 14) of the PLEKHG5 gene. This alteration results from a G to A substitution at nucleotide position 1610, causing the arginine (R) at amino acid position 537 to be replaced by a glutamine (Q). 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
Jun 30, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 536775). This variant has not been reported in the literature in individuals affected with PLEKHG5-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 537 of the PLEKHG5 protein (p.Arg537Gln). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.094
BayesDel_addAF
Uncertain
0.040
T
BayesDel_noAF
Benign
-0.18
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Benign
0.24
.;.;.;.;.;.;.;.;T;T
Eigen
Uncertain
0.33
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Uncertain
0.79
D
LIST_S2
Uncertain
0.93
D;.;D;D;D;D;.;D;D;D
M_CAP
Pathogenic
0.31
D
MetaRNN
Uncertain
0.55
D;D;D;D;D;D;D;D;D;D
MetaSVM
Uncertain
-0.23
T
MutationAssessor
Uncertain
2.3
.;.;.;.;.;.;.;.;M;.
PhyloP100
4.1
PrimateAI
Benign
0.48
T
PROVEAN
Benign
-1.7
N;N;N;N;N;N;N;N;N;N
REVEL
Uncertain
0.41
Sift
Benign
0.048
D;T;T;D;T;T;T;T;T;T
Sift4G
Uncertain
0.024
D;D;D;D;D;D;D;D;D;D
Polyphen
1.0, 0.99, 1.0, 0.79
.;.;.;.;D;D;.;.;D;P
Vest4
0.64
MutPred
0.49
.;.;.;.;.;.;.;.;Loss of MoRF binding (P = 0.0262);.;
MVP
0.60
MPC
0.31
ClinPred
0.94
D
GERP RS
3.3
Varity_R
0.28
gMVP
0.85
Mutation Taster
=88/12
polymorphism

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

Other links and lift over

dbSNP: rs1322468026; hg19: chr1-6530636; API