5-143116-C-A

Position:

• chr5-143116-C-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_052909.5(PLEKHG4B):​c.1547C>A​(p.Pro516His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: PLEKHG4B NM_052909.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.0890

Genes affected

PLEKHG4B (HGNC:29399): (pleckstrin homology and RhoGEF domain containing G4B) This gene encodes a large protein that contains a pleckstrin homology domain and may function as a guanine nucleotide exchange factor. [provided by RefSeq, May 2017]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.066924155).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PLEKHG4B	NM_052909.5	c.1547C>A	p.Pro516His	missense_variant	4/20	ENST00000637938.2	NP_443141.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PLEKHG4B	ENST00000637938.2	c.1547C>A	p.Pro516His	missense_variant	4/20	5	NM_052909.5	ENSP00000490806.1
PLEKHG4B	ENST00000283426.11	c.479C>A	p.Pro160His	missense_variant	2/18	1		ENSP00000283426.6
PLEKHG4B	ENST00000502646.1	c.221C>A	p.Pro74His	missense_variant	2/9	1		ENSP00000422493.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 21, 2021

The c.479C>A (p.P160H) alteration is located in exon 2 (coding exon 2) of the PLEKHG4B gene. This alteration results from a C to A substitution at nucleotide position 479, causing the proline (P) at amino acid position 160 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.073
BayesDel_addAF	Benign	-0.31	T
BayesDel_noAF	Benign	-0.69
CADD	Benign	0.046
DANN	Benign	0.70
DEOGEN2	Benign	0.0044	.;T;T
Eigen	Benign	-1.7
Eigen_PC	Benign	-1.8
FATHMM_MKL	Benign	0.022	N
LIST_S2	Benign	0.23	T;T;T
M_CAP	Benign	0.0018	T
MetaRNN	Benign	0.067	T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.0	.;N;.
PrimateAI	Benign	0.29	T
PROVEAN	Benign	-0.40	.;N;N
REVEL	Benign	0.010
Sift	Uncertain	0.015	.;D;D
Sift4G	Benign	0.37	.;T;T
Polyphen		0.37	.;B;.
Vest4		0.046
MutPred		0.27		.;Gain of catalytic residue at P160 (P = 0.034);.;
MVP		0.048
MPC		0.14
ClinPred		0.11	T
GERP RS		-5.5
Varity_R		0.056
gMVP		0.20

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: chr5-143231;