chr15-101652324-G-T

Variant summary

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

The NM_078474.3(TM2D3):​c.38C>A​(p.Ala13Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000624 in 1,602,334 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 35)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

TM2D3
NM_078474.3 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.362
Variant links:
Genes affected
TM2D3 (HGNC:24128): (TM2 domain containing 3) The protein encoded by this gene contains a structural module related to that of the seven transmembrane domain G protein-coupled receptor superfamily. This protein has sequence and structural similarities to the beta-amyloid binding protein (BBP), but, unlike BBP, it does not regulate a response to beta-amyloid peptide. This protein may have regulatory roles in cell death or proliferation signal cascades. Several alternatively spliced transcript variants of this gene are described but the full length nature of some variants has not been determined. Multiple polyadenylation sites have been found in this gene. [provided by RefSeq, Jul 2008]

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=0.05178976).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TM2D3NM_078474.3 linkuse as main transcriptc.38C>A p.Ala13Asp missense_variant 1/6 ENST00000333202.8 NP_510883.2
TM2D3NM_025141.4 linkuse as main transcriptc.38C>A p.Ala13Asp missense_variant 1/5 NP_079417.2
TM2D3NM_001308026.2 linkuse as main transcriptc.38C>A p.Ala13Asp missense_variant 1/6 NP_001294955.1
TM2D3NM_001307960.2 linkuse as main transcriptc.38C>A p.Ala13Asp missense_variant 1/5 NP_001294889.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TM2D3ENST00000333202.8 linkuse as main transcriptc.38C>A p.Ala13Asp missense_variant 1/61 NM_078474.3 ENSP00000330433 A1Q9BRN9-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152200
Hom.:
0
Cov.:
35
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000868
AC:
2
AN:
230456
Hom.:
0
AF XY:
0.0000157
AC XY:
2
AN XY:
127040
show subpopulations
Gnomad AFR exome
AF:
0.000160
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000138
AC:
2
AN:
1450026
Hom.:
0
Cov.:
31
AF XY:
0.00000277
AC XY:
2
AN XY:
721532
show subpopulations
Gnomad4 AFR exome
AF:
0.0000640
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000525
AC:
8
AN:
152308
Hom.:
0
Cov.:
35
AF XY:
0.000107
AC XY:
8
AN XY:
74472
show subpopulations
Gnomad4 AFR
AF:
0.000192
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000333
Hom.:
0
Bravo
AF:
0.0000491
ESP6500AA
AF:
0.000228
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000166
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 GeneticsJan 07, 2022The c.38C>A (p.A13D) alteration is located in exon 1 (coding exon 1) of the TM2D3 gene. This alteration results from a C to A substitution at nucleotide position 38, causing the alanine (A) at amino acid position 13 to be replaced by an aspartic acid (D). 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
0.17
BayesDel_addAF
Benign
-0.39
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
4.7
DANN
Benign
0.64
DEOGEN2
Benign
0.019
.;T;.;T
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.015
N
LIST_S2
Benign
0.42
T;T;T;T
M_CAP
Benign
0.0091
T
MetaRNN
Benign
0.052
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.0
.;.;N;N
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
-0.21
N;N;N;N
REVEL
Benign
0.0090
Sift
Benign
0.21
T;T;T;T
Sift4G
Benign
0.19
T;T;T;T
Polyphen
0.0060
B;.;B;B
Vest4
0.34
MVP
0.040
MPC
0.10
ClinPred
0.030
T
GERP RS
0.49
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.15
gMVP
0.62

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: rs374360447; hg19: chr15-102192527; API