NM_001146339.2:c.22G>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001146339.2(VSTM2B):​c.22G>T​(p.Gly8Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000349 in 1,375,162 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 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: 0.000035 ( 0 hom. )

Consequence

VSTM2B
NM_001146339.2 missense

Scores

2
3
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.392

Publications

0 publications found
Variant links:
Genes affected
VSTM2B (HGNC:33595): (V-set and transmembrane domain containing 2B) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]
VSTM2B-DT (HGNC:27615): (VSTM2B divergent transcript)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.12941906).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
VSTM2BNM_001146339.2 linkc.22G>T p.Gly8Cys missense_variant Exon 1 of 5 ENST00000335523.8 NP_001139811.1 A6NLU5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
VSTM2BENST00000335523.8 linkc.22G>T p.Gly8Cys missense_variant Exon 1 of 5 5 NM_001146339.2 ENSP00000335038.6 A6NLU5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.0000302
AC:
4
AN:
132388
AF XY:
0.0000420
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000373
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000349
AC:
48
AN:
1375162
Hom.:
0
Cov.:
31
AF XY:
0.0000324
AC XY:
22
AN XY:
678538
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30508
American (AMR)
AF:
0.00
AC:
0
AN:
35024
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24886
East Asian (EAS)
AF:
0.00
AC:
0
AN:
34842
South Asian (SAS)
AF:
0.0000642
AC:
5
AN:
77844
European-Finnish (FIN)
AF:
0.0000287
AC:
1
AN:
34830
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5188
European-Non Finnish (NFE)
AF:
0.0000391
AC:
42
AN:
1074588
Other (OTH)
AF:
0.00
AC:
0
AN:
57452
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
3
6
8
11
14
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000413
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Feb 07, 2025
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.22G>T (p.G8C) alteration is located in exon 1 (coding exon 1) of the VSTM2B gene. This alteration results from a G to T substitution at nucleotide position 22, causing the glycine (G) at amino acid position 8 to be replaced by a cysteine (C). 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
0.11
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.58
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.014
T
Eigen
Benign
-0.41
Eigen_PC
Benign
-0.22
FATHMM_MKL
Benign
0.37
N
LIST_S2
Benign
0.51
T
M_CAP
Pathogenic
0.47
D
MetaRNN
Benign
0.13
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.1
L
PhyloP100
-0.39
PrimateAI
Pathogenic
0.87
D
PROVEAN
Benign
-2.1
N
REVEL
Benign
0.062
Sift
Uncertain
0.0070
D
Sift4G
Uncertain
0.013
D
Polyphen
0.054
B
Vest4
0.16
MVP
0.12
ClinPred
0.14
T
GERP RS
2.8
Varity_R
0.33
gMVP
0.67
Mutation Taster
=65/35
polymorphism

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

Other links and lift over

dbSNP: rs779184121; hg19: chr19-30017512; API