17-41828792-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_052935.5(NT5C3B):​c.565G>A​(p.Asp189Asn) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,268 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 18/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

NT5C3B
NM_052935.5 missense, splice_region

Scores

19
Splicing: ADA: 0.0001323
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.30
Variant links:
Genes affected
NT5C3B (HGNC:28300): (5'-nucleotidase, cytosolic IIIB) Predicted to enable 5'-nucleotidase activity. Predicted to be involved in exonucleolytic catabolism of deadenylated mRNA. Predicted to be located in cytosol. Predicted to be active in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.05621445).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NT5C3BNM_052935.5 linkuse as main transcriptc.565G>A p.Asp189Asn missense_variant, splice_region_variant 7/9 ENST00000435506.7 NP_443167.4 Q969T7-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NT5C3BENST00000435506.7 linkuse as main transcriptc.565G>A p.Asp189Asn missense_variant, splice_region_variant 7/95 NM_052935.5 ENSP00000389948.2 Q969T7-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250646
Hom.:
0
AF XY:
0.00000738
AC XY:
1
AN XY:
135486
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS 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:
6.85e-7
AC:
1
AN:
1460268
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
726264
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1

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 submitterclinical testingAmbry GeneticsMar 20, 2024The c.565G>A (p.D189N) alteration is located in exon 7 (coding exon 7) of the NT5C3B gene. This alteration results from a G to A substitution at nucleotide position 565, causing the aspartic acid (D) at amino acid position 189 to be replaced by an asparagine (N). 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
0.072
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.32
CADD
Benign
16
DANN
Benign
0.54
DEOGEN2
Benign
0.21
T;T;.;T
Eigen
Benign
-0.93
Eigen_PC
Benign
-0.75
FATHMM_MKL
Benign
0.068
N
LIST_S2
Benign
0.71
T;T;T;T
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.052
T;T;T;T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
0.070
.;N;.;.
PrimateAI
Benign
0.30
T
PROVEAN
Benign
0.69
N;N;N;.
REVEL
Benign
0.14
Sift
Benign
0.61
T;T;T;.
Sift4G
Benign
0.67
T;T;.;T
Vest4
0.17
MVP
0.35
MPC
0.12
ClinPred
0.041
T
GERP RS
3.0
Varity_R
0.038
gMVP
0.41

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00013
dbscSNV1_RF
Benign
0.0020
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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs782163732; hg19: chr17-39985044; API