NM_022835.3:c.51C>T

Variant names:

• chr19-39414137-C-T
• rs1199893811
• NM_022835.3:c.51C>T

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_Strong BP6_Moderate BP7

The NM_022835.3(PLEKHG2):​c.51C>T​(p.Leu17Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000429 in 1,399,212 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000043 (0 hom.)
• Consequence: PLEKHG2 NM_022835.3 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.162
• Publications: 0 publications found

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]

PLEKHG2 Gene-Disease associations (from GenCC):

• leukodystrophy and acquired microcephaly with or without dystonia;

  Inheritance: AR Classification: STRONG, LIMITED Submitted by: Ambry Genetics, Illumina, Labcorp Genetics (formerly Invitae)
• epilepsy

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Benign. The variant received -7 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.57).
• BP6: Variant 19-39414137-C-T is Benign according to our data. Variant chr19-39414137-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 1634078.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=-0.162 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_022835.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PLEKHG2	NM_022835.3	MANE Select	c.51C>T	p.Leu17Leu	synonymous	Exon 2 of 19	NP_073746.2	Q9H7P9-1
	PLEKHG2	NM_001351693.2		c.51C>T	p.Leu17Leu	synonymous	Exon 2 of 20	NP_001338622.1	E7ESZ3
	PLEKHG2	NM_001351694.2		c.51C>T	p.Leu17Leu	synonymous	Exon 2 of 18	NP_001338623.1	Q9H7P9-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PLEKHG2	ENST00000425673.6	TSL:2 MANE Select	c.51C>T	p.Leu17Leu	synonymous	Exon 2 of 19	ENSP00000392906.2	Q9H7P9-1
	PLEKHG2	ENST00000942561.1		c.51C>T	p.Leu17Leu	synonymous	Exon 1 of 18	ENSP00000612620.1
	PLEKHG2	ENST00000942562.1		c.51C>T	p.Leu17Leu	synonymous	Exon 2 of 19	ENSP00000612621.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000642 AC: 1 AN: 155850 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000917

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000429 AC: 6 AN: 1399212 Hom.: 0 Cov.: 30 AF XY: 0.00000724 AC XY: 5 AN XY: 690134

African (AFR) AF: 0.00 AC: 0 AN: 31596

American (AMR) AF: 0.00 AC: 0 AN: 35702

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25178

East Asian (EAS) AF: 0.0000280 AC: 1 AN: 35736

South Asian (SAS) AF: 0.00 AC: 0 AN: 79230

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 49196

Middle Eastern (MID) AF: 0.000176 AC: 1 AN: 5696

European-Non Finnish (NFE) AF: 0.00000371 AC: 4 AN: 1078882

Other (OTH) AF: 0.00 AC: 0 AN: 57996

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.57
CADD	Benign	8.8
DANN	Benign	0.93
PhyloP100		-0.16
PromoterAI		-0.00060	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

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

Other links and lift over

dbSNP: rs1199893811; hg19: chr19-39904777;