19-39415058-G-T

Variant names:

• chr19-39415058-G-T
• NM_022835.3:c.176G>T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_022835.3(PLEKHG2):​c.176G>T​(p.Gly59Val) variant causes a missense change. The variant allele was found at a frequency of 0.000000694 in 1,441,340 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: PLEKHG2 NM_022835.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.57

Genes affected

PLEKHG2 (HGNC:29515): (pleckstrin homology and RhoGEF domain containing G2) The protein encoded by this gene is a RhoGTPase that can activate CDC42 by promoting exchange of GDP for GTP on CDC42. The encoded protein is activated by binding to the beta and gamma subunits of heterotrimeric guanine nucleotide-binding protein. Defects in this gene have been associated with leukodystrophy and acquired microcephaly with or without dystonia. [provided by RefSeq, May 2017]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.40436608).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PLEKHG2	NM_022835.3	c.176G>T	p.Gly59Val	missense_variant	Exon 3 of 19	ENST00000425673.6	NP_073746.2
PLEKHG2	NM_001351694.2	c.176G>T	p.Gly59Val	missense_variant	Exon 3 of 18		NP_001338623.1
PLEKHG2	NM_001351693.2	c.110-111G>T		intron_variant	Intron 2 of 19		NP_001338622.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PLEKHG2	ENST00000425673.6	c.176G>T	p.Gly59Val	missense_variant	Exon 3 of 19	2	NM_022835.3	ENSP00000392906.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.94e-7 AC: 1 AN: 1441340 Hom.: 0 Cov.: 31 AF XY: 0.00000140 AC XY: 1 AN XY: 715432

Gnomad4 AFR exome AF: 0.00

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: 9.07e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.61
BayesDel_addAF	Uncertain	0.084	D
BayesDel_noAF	Benign	-0.12
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.022	T;.;.;.
Eigen	Uncertain	0.39
Eigen_PC	Uncertain	0.39
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.86	D;D;D;D
M_CAP	Uncertain	0.16	D
MetaRNN	Benign	0.40	T;T;T;T
MetaSVM	Benign	-0.29	T
MutationAssessor	Uncertain	2.0	M;.;M;.
PrimateAI	Pathogenic	0.82	D
PROVEAN	Uncertain	-2.5	N;D;D;D
REVEL	Benign	0.23
Sift	Pathogenic	0.0	D;D;D;D
Sift4G	Uncertain	0.0040	D;D;D;D
Polyphen		1.0	D;.;D;.
Vest4		0.63
MutPred		0.25		Gain of glycosylation at S54 (P = 0.1755);.;Gain of glycosylation at S54 (P = 0.1755);.;
MVP		0.77
ClinPred		0.98	D
GERP RS		5.0
Varity_R		0.47
gMVP		0.44

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-39905698;