19-45687564-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001384647.1(SNRPD2):​c.346G>A​(p.Ala116Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000212 in 1,461,666 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

SNRPD2
NM_001384647.1 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.89
Variant links:
Genes affected
SNRPD2 (HGNC:11159): (small nuclear ribonucleoprotein D2 polypeptide) The protein encoded by this gene belongs to the small nuclear ribonucleoprotein core protein family. It is required for pre-mRNA splicing and small nuclear ribonucleoprotein biogenesis. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.11857405).
BS2
High AC in GnomAdExome4 at 31 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SNRPD2NM_001384647.1 linkuse as main transcriptc.346G>A p.Ala116Thr missense_variant 3/3 ENST00000342669.8 NP_001371576.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SNRPD2ENST00000342669.8 linkuse as main transcriptc.346G>A p.Ala116Thr missense_variant 3/31 NM_001384647.1 ENSP00000342374 P1P62316-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000797
AC:
2
AN:
251050
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135654
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:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000212
AC:
31
AN:
1461666
Hom.:
0
Cov.:
31
AF XY:
0.0000220
AC XY:
16
AN XY:
727142
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:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000243
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378
ExAC
AF:
0.0000165
AC:
2

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 01, 2023The c.346G>A (p.A116T) alteration is located in exon 3 (coding exon 3) of the SNRPD2 gene. This alteration results from a G to A substitution at nucleotide position 346, causing the alanine (A) at amino acid position 116 to be replaced by a threonine (T). 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
0.074
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.44
CADD
Uncertain
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.17
T;T;.;.;.;T
Eigen
Benign
-0.11
Eigen_PC
Benign
0.071
FATHMM_MKL
Uncertain
0.78
D
LIST_S2
Benign
0.85
.;T;.;.;T;T
M_CAP
Benign
0.0055
T
MetaRNN
Benign
0.12
T;T;T;T;T;T
MetaSVM
Benign
-0.93
T
MutationAssessor
Benign
0.79
N;.;.;.;.;N
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Uncertain
0.66
T
PROVEAN
Benign
-0.62
N;.;.;.;N;.
REVEL
Benign
0.081
Sift
Benign
0.25
T;.;.;.;T;.
Sift4G
Benign
0.15
.;T;T;T;T;.
Polyphen
0.0020
B;.;.;.;.;B
Vest4
0.14
MutPred
0.21
Gain of sheet (P = 0.0266);.;.;.;.;Gain of sheet (P = 0.0266);
MVP
0.24
MPC
1.4
ClinPred
0.20
T
GERP RS
5.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.40
gMVP
0.90

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

LitVar

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

Other links and lift over

dbSNP: rs748374764; hg19: chr19-46190822; COSMIC: COSV50005039; COSMIC: COSV50005039; API