19-44658770-G-T

Position:

• chr19-44658770-G-T

Variant summary

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

The NM_006505.5(PVR):​c.1020G>T​(p.Met340Ile) 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. 6/7 in silico tools predict 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)
• Consequence: PVR NM_006505.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.99

Genes affected

PVR (HGNC:9705): (PVR cell adhesion molecule) The protein encoded by this gene is a transmembrane glycoprotein belonging to the immunoglobulin superfamily. The external domain mediates cell attachment to the extracellular matrix molecule vitronectin, while its intracellular domain interacts with the dynein light chain Tctex-1/DYNLT1. The gene is specific to the primate lineage, and serves as a cellular receptor for poliovirus in the first step of poliovirus replication. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2008]

PVR (HGNC:):

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=0.045244843).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PVR	NM_006505.5	c.1020G>T	p.Met340Ile	missense_variant	6/8	ENST00000425690.8	NP_006496.4
PVR	NM_001135770.4	c.1020G>T	p.Met340Ile	missense_variant	6/6		NP_001129242.2
PVR	NM_001135768.3	c.1015+5G>T		splice_region_variant, intron_variant			NP_001129240.1
PVR	NM_001135769.3	c.991+860G>T		intron_variant			NP_001129241.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PVR	ENST00000425690.8	c.1020G>T	p.Met340Ile	missense_variant	6/8	1	NM_006505.5	ENSP00000402060.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_noAF	Benign	-0.97
CADD	Benign	0.022
DEOGEN2	Benign	0.0077	T;T
LIST_S2	Benign	0.35	T;T
MetaRNN	Benign	0.045	T;T
Sift4G	Benign	0.48	T;T
Vest4		0.048
gMVP		0.11

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Publications

LitVar

Other links and lift over

dbSNP: rs203710; hg19: chr19-45162038;