Genetic Variant ENTPD8:p.Val472Leu (chr9-137434988-C-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001033113.2(ENTPD8):c.1414G>C(p.Val472Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,564 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V472M) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 34)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ENTPD8
NM_001033113.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.457

Publications

0 publications found

Variant links:

Genes affected

ENTPD8 (HGNC:24860): (ectonucleoside triphosphate diphosphohydrolase 8) Predicted to enable guanosine-diphosphatase activity and uridine-diphosphatase activity. Predicted to be involved in nucleoside diphosphate catabolic process. Predicted to act upstream of or within nucleoside diphosphate biosynthetic process and nucleoside monophosphate biosynthetic process. Predicted to be integral component of membrane. Predicted to be active in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

ENTPD8 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.05669269).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ENTPD8	NM_001033113.2 link	c.1414G>C	p.Val472Leu	missense_variant	Exon 10 of 10	ENST00000371506.7	NP_001028285.1	Q5MY95-1
ENTPD8	NM_198585.3 link	c.1303G>C	p.Val435Leu	missense_variant	Exon 9 of 9		NP_940987.2	Q5MY95-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ENTPD8	ENST00000371506.7 link	c.1414G>C	p.Val472Leu	missense_variant	Exon 10 of 10	5	NM_001033113.2	ENSP00000360561.2	Q5MY95-1
ENTPD8	ENST00000344119.6 link	c.1303G>C	p.Val435Leu	missense_variant	Exon 9 of 9	1		ENSP00000344089.2	Q5MY95-2
ENTPD8	ENST00000461823.1 link	n.2212G>C		non_coding_transcript_exon_variant	Exon 8 of 8	2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460564

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726636

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33472

American (AMR)

AF:

0.00

AC:

AN:

44692

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26116

East Asian (EAS)

AF:

0.00

AC:

AN:

39692

South Asian (SAS)

AF:

0.00

AC:

AN:

86242

European-Finnish (FIN)

AF:

0.0000191

AC:

AN:

52370

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111870

Other (OTH)

AF:

0.00

AC:

AN:

60344

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.20

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.71

CADD

Benign

8.5

(source)

DANN

Benign

0.84

DEOGEN2

Benign

0.034

.;T;T

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.16

LIST_S2

Benign

0.67

T;T;.

M_CAP

Benign

0.033

MetaRNN

Benign

0.057

T;T;T

MetaSVM

Benign

-0.97

MutationAssessor

Benign

1.9

.;L;L

PhyloP100

-0.46

PrimateAI

Benign

0.38

PROVEAN

Benign

-0.15

N;N;N

REVEL

Benign

0.012

Sift

Benign

0.39

T;T;T

Sift4G

Benign

0.53

T;T;T

Polyphen

0.0080

B;B;B

Vest4

0.057

MutPred

0.38

.;Loss of sheet (P = 0.0181);Loss of sheet (P = 0.0181);

MVP

0.030

MPC

0.20

ClinPred

0.16

GERP RS

2.0

Varity_R

0.057

gMVP

0.41

Mutation Taster

=87/13

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over