rs199707294

Variant names:

• chr6-150733902-C-G
• rs199707294
• NM_001029884.3:c.221C>G

Your query was ambiguous. Multiple possible variants found:

• chr6-150733902-C-G
• chr6-150733902-C-T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001029884.3(PLEKHG1):​c.221C>G​(p.Thr74Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,614,178 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T74M) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: PLEKHG1 NM_001029884.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0150
• Publications: 0 publications found

Genes affected

PLEKHG1 (HGNC:20884): (pleckstrin homology and RhoGEF domain containing G1) Predicted to enable guanyl-nucleotide exchange factor activity. Predicted to be involved in regulation of small GTPase mediated signal transduction. Located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

PLEKHG1 Gene-Disease associations (from GenCC):

• periventricular leukomalacia

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

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=0.05593562).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001029884.3. 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
	PLEKHG1	NM_001029884.3	MANE Select	c.221C>G	p.Thr74Arg	missense	Exon 3 of 17	NP_001025055.1	Q9ULL1
	PLEKHG1	NM_001329798.2		c.398C>G	p.Thr133Arg	missense	Exon 2 of 16	NP_001316727.1
	PLEKHG1	NM_001329799.2		c.341C>G	p.Thr114Arg	missense	Exon 2 of 16	NP_001316728.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PLEKHG1	ENST00000696526.1	MANE Select	c.221C>G	p.Thr74Arg	missense	Exon 3 of 17	ENSP00000512689.1	Q9ULL1
	PLEKHG1	ENST00000358517.6	TSL:5	c.221C>G	p.Thr74Arg	missense	Exon 2 of 16	ENSP00000351318.2	Q9ULL1
	PLEKHG1	ENST00000644968.1		c.221C>G	p.Thr74Arg	missense	Exon 2 of 16	ENSP00000496254.1	Q9ULL1

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152176 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000483

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

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251224 AF XY: 0.00000736

Gnomad AFR exome AF: 0.0000618

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: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1461884 Hom.: 0 Cov.: 32 AF XY: 0.00000413 AC XY: 3 AN XY: 727246

African (AFR) AF: 0.000119 AC: 4 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112004

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152294 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74470

African (AFR) AF: 0.0000241 AC: 1 AN: 41566

American (AMR) AF: 0.00 AC: 0 AN: 15304

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5170

South Asian (SAS) AF: 0.00 AC: 0 AN: 4828

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10616

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68020

Other (OTH) AF: 0.00 AC: 0 AN: 2112

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000189

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.065
BayesDel_addAF	Benign	-0.37	T
BayesDel_noAF	Benign	-0.59
CADD	Benign	5.7
DANN	Benign	0.84
DEOGEN2	Benign	0.0030	T
Eigen	Benign	-1.2
Eigen_PC	Benign	-1.3
FATHMM_MKL	Benign	0.12	N
LIST_S2	Benign	0.48	T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.056	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.0	N
PhyloP100		0.015
PrimateAI	Benign	0.28	T
PROVEAN	Benign	-1.1	N
REVEL	Benign	0.0090
Sift	Benign	0.16	T
Sift4G	Benign	0.34	T
Polyphen		0.069	B
Vest4		0.20
MutPred		0.28		Loss of phosphorylation at T74 (P = 0.0237)
MVP		0.43
ClinPred		0.025	T
GERP RS		-1.1
Varity_R		0.070
gMVP		0.24
Mutation Taster		=98/2	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

Other links and lift over

dbSNP: rs199707294; hg19: chr6-151055038;