Genetic Variant NM_203468.3:c.1234G>C (chr9-137048991-C-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PP3_Moderate

The NM_203468.3(ENTPD2):c.1234G>C(p.Gly412Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000101 in 1,537,190 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 34)

Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

ENTPD2
NM_203468.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.55

Publications

0 publications found

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:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.895

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ENTPD2	NM_203468.3 link	c.1234G>C	p.Gly412Arg	missense_variant	Exon 8 of 9	ENST00000355097.7	NP_982293.1	Q9Y5L3-1
ENTPD2	NM_001246.4 link	c.1165G>C	p.Gly389Arg	missense_variant	Exon 8 of 9		NP_001237.1	Q9Y5L3-2
ENTPD2	XM_011519212.3 link	c.925G>C	p.Gly309Arg	missense_variant	Exon 7 of 8		XP_011517514.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ENTPD2	ENST00000355097.7 link	c.1234G>C	p.Gly412Arg	missense_variant	Exon 8 of 9	1	NM_203468.3	ENSP00000347213.2	Q9Y5L3-1
ENTPD2	ENST00000312665.7 link	c.1165G>C	p.Gly389Arg	missense_variant	Exon 8 of 9	1		ENSP00000312494.5	Q9Y5L3-2
ENTPD2	ENST00000460614.1 link	n.623G>C		non_coding_transcript_exon_variant	Exon 1 of 2	1

Frequencies

GnomAD3 genomes

AF:

0.0000854

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000682

AC:

AN:

131962

AF XY:

0.0000693

show subpopulations

Gnomad AFR exome

AF:

0.000166

Gnomad AMR exome

AF:

0.000124

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000196

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000613

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000103

AC:

143

AN:

1384892

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

683172

show subpopulations

African (AFR)

AF:

0.0000320

AC:

AN:

31220

American (AMR)

AF:

0.000141

AC:

AN:

35440

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25048

East Asian (EAS)

AF:

0.000310

AC:

AN:

35438

South Asian (SAS)

AF:

0.00

AC:

AN:

79150

European-Finnish (FIN)

AF:

0.00

AC:

AN:

38372

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5562

European-Non Finnish (NFE)

AF:

0.000112

AC:

121

AN:

1076966

Other (OTH)

AF:

0.0000867

AC:

AN:

57696

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.471

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000854

AC:

AN:

152298

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74478

show subpopulations

African (AFR)

AF:

0.0000481

AC:

AN:

41560

American (AMR)

AF:

0.0000653

AC:

AN:

15310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000132

AC:

AN:

67996

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.490

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000672

Hom.:

Bravo

AF:

0.0000680

ExAC

AF:

0.0000598

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 21, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1234G>C (p.G412R) 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 1234, causing the glycine (G) at amino acid position 412 to be replaced by an arginine (R). 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

0.88

BayesDel_addAF

Benign

-0.0039

BayesDel_noAF

Uncertain

0.040

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.30

T;.

Eigen

Uncertain

0.63

Eigen_PC

Uncertain

0.45

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.90

D;D

M_CAP

Pathogenic

0.48

MetaRNN

Pathogenic

0.89

D;D

MetaSVM

Benign

-0.44

MutationAssessor

Pathogenic

3.5

H;.

PhyloP100

3.6

PrimateAI

Pathogenic

0.86

PROVEAN

Pathogenic

-7.8

D;D

REVEL

Uncertain

0.53

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0010

D;D

Polyphen

1.0

D;D

Vest4

0.82

MVP

0.58

MPC

0.38

ClinPred

0.98

GERP RS

3.2

Varity_R

0.89

gMVP

0.96

Mutation Taster

=25/75

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

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

Publications

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NM_203468.3:c.1234G>C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over