6-131671285-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_005021.5(ENPP3):c.600G>A(p.Met200Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000137 in 1,455,404 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 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)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

ENPP3
NM_005021.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.174

Variant links:

Genes affected

ENPP3 (HGNC:3358): (ectonucleotide pyrophosphatase/phosphodiesterase 3) The protein encoded by this gene belongs to a series of ectoenzymes that are involved in hydrolysis of extracellular nucleotides. These ectoenzymes possess ATPase and ATP pyrophosphatase activities and are type II transmembrane proteins. Expression of the related rat mRNA has been found in a subset of immature glial cells and in the alimentary tract. The corresponding rat protein has been detected in the pancreas, small intestine, colon, and liver. The human mRNA is expressed in glioma cells, prostate, and uterus. Expression of the human protein has been detected in uterus, basophils, and mast cells. Two transcript variants, one protein coding and the other non-protein coding, have been found for this gene. [provided by RefSeq, Oct 2015]

ENPP3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

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=0.14720997).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
ENPP3	NM_005021.5 linkuse as main transcript	c.600G>A	p.Met200Ile	missense_variant	7/25	ENST00000357639.8
ENPP3	XM_017010932.2 linkuse as main transcript	c.369G>A	p.Met123Ile	missense_variant	5/23
ENPP3	NR_133007.2 linkuse as main transcript	n.683G>A		non_coding_transcript_exon_variant	7/24

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ENPP3	ENST00000357639.8 linkuse as main transcript	c.600G>A	p.Met200Ile	missense_variant	7/25	1	NM_005021.5	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

250898

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135598

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000265

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000137

AC:

AN:

1455404

Hom.:

Cov.:

AF XY:

0.0000152

AC XY:

AN XY:

724546

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000172

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 12, 2021

The c.600G>A (p.M200I) alteration is located in exon 7 (coding exon 7) of the ENPP3 gene. This alteration results from a G to A substitution at nucleotide position 600, causing the methionine (M) at amino acid position 200 to be replaced by an isoleucine (I). 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

0.21

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.46

Cadd

Benign

Dann

Benign

0.97

DEOGEN2

Benign

0.052

T;T;.

Eigen

Benign

-0.92

Eigen_PC

Benign

-0.84

FATHMM_MKL

Benign

0.034

M_CAP

Benign

0.0084

MetaRNN

Benign

0.15

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.27

N;N;.

MutationTaster

Benign

1.0

N;N;N;N;N

PrimateAI

Benign

0.29

PROVEAN

Benign

0.69

N;N;N

REVEL

Benign

0.15

Sift

Benign

0.049

D;D;D

Sift4G

Benign

0.097

T;T;T

Polyphen

0.0

B;B;.

Vest4

0.35

MutPred

0.50

Gain of catalytic residue at M200 (P = 0.0159);Gain of catalytic residue at M200 (P = 0.0159);Gain of catalytic residue at M200 (P = 0.0159);

MVP

0.36

MPC

0.066

ClinPred

0.067

GERP RS

0.10

Varity_R

0.27

gMVP

0.45

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.080

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