Genetic Variant ENTPD2:p.Arg392Pro (chr9-137049050-C-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_203468.3(ENTPD2):c.1175G>C(p.Arg392Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000795 in 1,534,118 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: 𝑓 0.00011 ( 0 hom., cov: 34)

Exomes 𝑓: 0.000076 ( 0 hom. )

Consequence

ENTPD2
NM_203468.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.563

Variant links:

Genes affected

ENTPD2 (HGNC:3364): (ectonucleoside triphosphate diphosphohydrolase 2) The protein encoded by this gene is the type 2 enzyme of the ecto-nucleoside triphosphate diphosphohydrolase family (E-NTPDase). E-NTPDases are a family of ecto-nucleosidases that hydrolyze 5'-triphosphates. This ecto-ATPase is an integral membrane protein. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Jul 2008]

ENTPD2 links:

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ACMG classification

Classification made for transcript

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=0.015553981).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ENTPD2	NM_203468.3 link	c.1175G>C	p.Arg392Pro	missense_variant	Exon 8 of 9	ENST00000355097.7	NP_982293.1	Q9Y5L3-1
ENTPD2	XM_011519212.3 link	c.866G>C	p.Arg289Pro	missense_variant	Exon 7 of 8		XP_011517514.1
ENTPD2	NM_001246.4 link	c.1150-44G>C		intron_variant	Intron 7 of 8		NP_001237.1	Q9Y5L3-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ENTPD2	ENST00000355097.7 link	c.1175G>C	p.Arg392Pro	missense_variant	Exon 8 of 9	1	NM_203468.3	ENSP00000347213.2	Q9Y5L3-1
ENTPD2	ENST00000312665.7 link	c.1150-44G>C		intron_variant	Intron 7 of 8	1		ENSP00000312494.5	Q9Y5L3-2
ENTPD2	ENST00000460614.1 link	n.564G>C		non_coding_transcript_exon_variant	Exon 1 of 2	1

Frequencies

GnomAD3 genomes

AF:

0.000112

AC:

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00231

Gnomad SAS

AF:

0.000827

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000360

AC:

AN:

130424

Hom.:

AF XY:

0.000295

AC XY:

AN XY:

71278

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00380

Gnomad SAS exome

AF:

0.000224

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000755

GnomAD4 exome

AF:

0.0000760

AC:

105

AN:

1381790

Hom.:

Cov.:

AF XY:

0.0000748

AC XY:

AN XY:

681706

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00183

Gnomad4 SAS exome

AF:

0.000164

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000279

Gnomad4 OTH exome

AF:

0.000416

GnomAD4 genome

AF:

0.000112

AC:

AN:

152328

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74488

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00231

Gnomad4 SAS

AF:

0.000828

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.000132

ExAC

AF:

0.000143

AC:

Asia WGS

AF:

0.00144

AC:

AN:

3476

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 22, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1175G>C (p.R392P) alteration is located in exon 8 (coding exon 8) of the ENTPD2 gene. This alteration results from a G to C substitution at nucleotide position 1175, causing the arginine (R) at amino acid position 392 to be replaced by a proline (P). 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

0.090

BayesDel_addAF

Benign

-0.64

BayesDel_noAF

Benign

-0.70

CADD

Benign

5.3

DANN

Benign

0.64

DEOGEN2

Benign

0.034

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.28

LIST_S2

Benign

0.37

M_CAP

Benign

0.015

MetaRNN

Benign

0.016

MetaSVM

Benign

-0.99

MutationAssessor

Benign

0.41

PrimateAI

Benign

0.44

PROVEAN

Benign

-1.7

REVEL

Benign

0.12

Sift

Benign

0.050

Sift4G

Benign

0.061

Polyphen

0.89

Vest4

0.18

MutPred

0.64

Loss of MoRF binding (P = 0.0149);

MVP

0.22

MPC

0.076

ClinPred

0.038

GERP RS

-5.0

Varity_R

0.26

gMVP

0.80

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over