9-137048999-A-G

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_203468.3(ENTPD2):​c.1226T>C​(p.Leu409Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000117 in 1,537,090 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 0.000013 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

ENTPD2
NM_203468.3 missense

Scores

8
5
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.41

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]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.979

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ENTPD2NM_203468.3 linkc.1226T>C p.Leu409Pro missense_variant Exon 8 of 9 ENST00000355097.7 NP_982293.1 Q9Y5L3-1
ENTPD2NM_001246.4 linkc.1157T>C p.Leu386Pro missense_variant Exon 8 of 9 NP_001237.1 Q9Y5L3-2
ENTPD2XM_011519212.3 linkc.917T>C p.Leu306Pro missense_variant Exon 7 of 8 XP_011517514.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ENTPD2ENST00000355097.7 linkc.1226T>C p.Leu409Pro missense_variant Exon 8 of 9 1 NM_203468.3 ENSP00000347213.2 Q9Y5L3-1
ENTPD2ENST00000312665.7 linkc.1157T>C p.Leu386Pro missense_variant Exon 8 of 9 1 ENSP00000312494.5 Q9Y5L3-2
ENTPD2ENST00000460614.1 linkn.615T>C non_coding_transcript_exon_variant Exon 1 of 2 1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151814
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000754
AC:
1
AN:
132542
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000412
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000115
AC:
16
AN:
1385276
Hom.:
0
Cov.:
67
AF XY:
0.0000117
AC XY:
8
AN XY:
683494
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31262
American (AMR)
AF:
0.0000282
AC:
1
AN:
35484
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25050
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35480
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79154
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
38274
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5588
European-Non Finnish (NFE)
AF:
0.0000139
AC:
15
AN:
1077254
Other (OTH)
AF:
0.00
AC:
0
AN:
57730
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.422
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151814
Hom.:
0
Cov.:
34
AF XY:
0.0000135
AC XY:
1
AN XY:
74158
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41336
American (AMR)
AF:
0.0000655
AC:
1
AN:
15274
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3464
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5158
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10518
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67936
Other (OTH)
AF:
0.00
AC:
0
AN:
2084
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000113

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Nov 26, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1226T>C (p.L409P) alteration is located in exon 8 (coding exon 8) of the ENTPD2 gene. This alteration results from a T to C substitution at nucleotide position 1226, causing the leucine (L) at amino acid position 409 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
Pathogenic
0.89
BayesDel_addAF
Pathogenic
0.25
D
BayesDel_noAF
Uncertain
0.13
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Benign
0.30
T;.
Eigen
Uncertain
0.39
Eigen_PC
Benign
0.20
FATHMM_MKL
Benign
0.63
D
LIST_S2
Benign
0.62
T;T
M_CAP
Pathogenic
0.69
D
MetaRNN
Pathogenic
0.98
D;D
MetaSVM
Benign
-0.38
T
MutationAssessor
Pathogenic
3.5
M;.
PhyloP100
2.4
PrimateAI
Pathogenic
0.85
D
PROVEAN
Pathogenic
-6.0
D;D
REVEL
Uncertain
0.38
Sift
Uncertain
0.0010
D;D
Sift4G
Pathogenic
0.0010
D;D
Polyphen
1.0
D;D
Vest4
0.90
MutPred
0.92
Loss of stability (P = 0.0289);.;
MVP
0.66
MPC
0.43
ClinPred
0.96
D
GERP RS
3.5
Varity_R
0.96
gMVP
0.97
Mutation Taster
=43/57
disease causing

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

Other links and lift over

dbSNP: rs1044540301; hg19: chr9-139943451; COSMIC: COSV108157630; COSMIC: COSV108157630; API