19-49851366-C-A

Position:

• chr19-49851366-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The ENST00000391842.6(PTOV1):​c.38C>A​(p.Ala13Asp) 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. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: PTOV1 ENST00000391842.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.280

Genes affected

PTOV1 (HGNC:9632): (PTOV1 extended AT-hook containing adaptor protein) This gene encodes a protein that was found to be overexpressed in prostate adenocarcinomas. The encoded protein was found to interact with the lipid raft protein flotillin-1 and shuttle it from the cytoplasm to the nucleus in a cell cycle dependent manner. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Feb 2015]

PTOV1-AS1 (HGNC:44174): (PTOV1 antisense RNA 1)

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.095924854).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PTOV1	NM_001394010.1	c.38C>A	p.Ala13Asp	missense_variant	1/12	ENST00000391842.6
PTOV1-AS1	NR_040037.1	n.109+202G>T		intron_variant, non_coding_transcript_variant
PTOV1	NR_130963.2	n.251+411C>A		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PTOV1	ENST00000391842.6	c.38C>A	p.Ala13Asp	missense_variant	1/12	5	NM_001394010.1	P1
PTOV1-AS1	ENST00000596521.1	n.109+202G>T		intron_variant, non_coding_transcript_variant		1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

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

Sep 01, 2021

The c.38C>A (p.A13D) alteration is located in exon 1 (coding exon 1) of the PTOV1 gene. This alteration results from a C to A substitution at nucleotide position 38, causing the alanine (A) at amino acid position 13 to be replaced by an aspartic acid (D). 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	0.27
BayesDel_addAF	Benign	-0.086	T
BayesDel_noAF	Benign	-0.36
CADD	Benign	21
DANN	Benign	0.97
DEOGEN2	Benign	0.020	T;T;T
Eigen	Benign	-0.84
Eigen_PC	Benign	-0.85
FATHMM_MKL	Benign	0.099	N
LIST_S2	Benign	0.49	T;.;.
M_CAP	Pathogenic	0.46	D
MetaRNN	Benign	0.096	T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.0	N;N;N
MutationTaster	Benign	1.0	D;N
PrimateAI	Pathogenic	0.90	D
PROVEAN	Benign	-0.79	N;.;.
REVEL	Benign	0.073
Sift	Pathogenic	0.0	D;.;.
Sift4G	Uncertain	0.058	T;T;T
Polyphen		0.31	B;B;B
Vest4		0.24
MutPred		0.16		Loss of methylation at R10 (P = 0.0757);Loss of methylation at R10 (P = 0.0757);Loss of methylation at R10 (P = 0.0757);
MVP		0.088
MPC		0.15
ClinPred		0.26	T
GERP RS		-1.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		2.6
Varity_R		0.51
gMVP		0.29

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

LitVar

Other links and lift over

dbSNP: rs575608015; hg19: chr19-50354623;