5-41381919-C-A

Position:

• chr5-41381919-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_001005473.3(PLCXD3):​c.719G>T​(p.Gly240Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: PLCXD3 NM_001005473.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.45

Genes affected

PLCXD3 (HGNC:31822): (phosphatidylinositol specific phospholipase C X domain containing 3) Predicted to enable phosphoric diester hydrolase activity. Predicted to be involved in lipid catabolic process and signal transduction. Predicted to be located in cytoplasm. Predicted to be active in glutamatergic synapse. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.832

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PLCXD3	NM_001005473.3	c.719G>T	p.Gly240Val	missense_variant	2/3	ENST00000377801.8	NP_001005473.1
PLCXD3	XM_017009438.3	c.503G>T	p.Gly168Val	missense_variant	2/3		XP_016864927.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PLCXD3	ENST00000377801.8	c.719G>T	p.Gly240Val	missense_variant	2/3	1	NM_001005473.3	ENSP00000367032.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

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 25, 2024

The c.719G>T (p.G240V) alteration is located in exon 2 (coding exon 2) of the PLCXD3 gene. This alteration results from a G to T substitution at nucleotide position 719, causing the glycine (G) at amino acid position 240 to be replaced by a valine (V). 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	Pathogenic	0.83
BayesDel_addAF	Pathogenic	0.41	D
BayesDel_noAF	Pathogenic	0.35
CADD	Pathogenic	34
DANN	Uncertain	1.0
DEOGEN2	Benign	0.22	T;T
Eigen	Pathogenic	0.89
Eigen_PC	Pathogenic	0.89
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.90	.;D
M_CAP	Benign	0.022	T
MetaRNN	Pathogenic	0.83	D;D
MetaSVM	Uncertain	-0.062	T
MutationAssessor	Uncertain	2.7	M;M
PrimateAI	Uncertain	0.76	T
PROVEAN	Uncertain	-4.3	D;D
REVEL	Uncertain	0.47
Sift	Uncertain	0.017	D;D
Sift4G	Uncertain	0.027	D;D
Polyphen		1.0	D;D
Vest4		0.96
MutPred		0.65		Loss of disorder (P = 0.0689);Loss of disorder (P = 0.0689);
MVP		0.27
MPC		0.53
ClinPred		0.99	D
GERP RS		6.1
Varity_R		0.61
gMVP		0.79

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.48		Details are displayed if max score is > 0.2
DS_DG_spliceai		0.48		Position offset: 2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs1170281413; hg19: chr5-41382021;