Genetic Variant NT5DC3:p.Ile271Val (chr12-103793940-T-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_001031701.3(NT5DC3):c.811A>G(p.Ile271Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000206 in 1,457,884 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 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: 0.0000021 ( 0 hom. )

Consequence

NT5DC3
NM_001031701.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.96

Variant links:

Genes affected

NT5DC3 (HGNC:30826): (5'-nucleotidase domain containing 3) Predicted to enable 5'-nucleotidase activity. Predicted to be involved in dephosphorylation. Part of receptor complex. [provided by Alliance of Genome Resources, Apr 2022]

NT5DC3 links:

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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=0.17717159).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NT5DC3	NM_001031701.3 link	c.811A>G	p.Ile271Val	missense_variant	Exon 7 of 14	ENST00000392876.8	NP_001026871.1	Q86UY8-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NT5DC3	ENST00000392876.8 link	c.811A>G	p.Ile271Val	missense_variant	Exon 7 of 14	1	NM_001031701.3	ENSP00000376615.3		Q86UY8-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251414

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135882

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:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000206

AC:

AN:

1457884

Hom.:

Cov.:

AF XY:

0.00000276

AC XY:

AN XY:

725662

show subpopulations

Gnomad4 AFR exome

AF:

0.0000300

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:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.00

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

Mar 07, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.811A>G (p.I271V) alteration is located in exon 7 (coding exon 7) of the NT5DC3 gene. This alteration results from a A to G substitution at nucleotide position 811, causing the isoleucine (I) at amino acid position 271 to be replaced by a valine (V). 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

0.066

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.43

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.030

Eigen

Benign

-0.14

Eigen_PC

Benign

0.021

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.72

M_CAP

Benign

0.011

MetaRNN

Benign

0.18

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.5

PrimateAI

Uncertain

0.57

PROVEAN

Benign

-0.26

REVEL

Benign

0.18

Sift

Benign

0.68

Sift4G

Benign

0.78

Polyphen

0.12

Vest4

0.36

MutPred

0.52

Gain of catalytic residue at A266 (P = 0.0192);

MVP

0.13

MPC

0.81

ClinPred

0.46

GERP RS

5.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.10

gMVP

0.35

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.060

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