Genetic Variant VSTM2B:p.Ser82Asn (chr19-29527373-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001146339.2(VSTM2B):c.245G>A(p.Ser82Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000266 in 1,541,046 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: 𝑓 0.000053 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

VSTM2B
NM_001146339.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.41

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 links:

VSTM2B-DT (HGNC:27615): (VSTM2B divergent transcript)

VSTM2B-DT links:

LOC124904683 (HGNC:):

LOC124904683 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.07738033).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
VSTM2B	NM_001146339.2 link	c.245G>A	p.Ser82Asn	missense_variant	Exon 2 of 5	ENST00000335523.8	NP_001139811.1	A6NLU5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
VSTM2B	ENST00000335523.8 link	c.245G>A	p.Ser82Asn	missense_variant	Exon 2 of 5	5	NM_001146339.2	ENSP00000335038.6	A6NLU5
VSTM2B-DT	ENST00000804084.1 link	n.116+1668C>T		intron_variant	Intron 1 of 4
VSTM2B-DT	ENST00000804085.1 link	n.116+1668C>T		intron_variant	Intron 1 of 3
VSTM2B-DT	ENST00000804102.1 link	n.103+1339C>T		intron_variant	Intron 1 of 3

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152148

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00155

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

GnomAD2 exomes

AF:

0.000113

AC:

AN:

141078

AF XY:

0.000105

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00160

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000238

AC:

AN:

1388786

Hom.:

Cov.:

AF XY:

0.0000219

AC XY:

AN XY:

685064

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

30672

American (AMR)

AF:

0.00

AC:

AN:

35264

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24938

East Asian (EAS)

AF:

0.000767

AC:

AN:

35210

South Asian (SAS)

AF:

0.00

AC:

AN:

78230

European-Finnish (FIN)

AF:

0.00

AC:

AN:

44930

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5628

European-Non Finnish (NFE)

AF:

9.29e-7

AC:

AN:

1076226

Other (OTH)

AF:

0.0000867

AC:

AN:

57688

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.513

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000525

AC:

AN:

152260

Hom.:

Cov.:

AF XY:

0.0000806

AC XY:

AN XY:

74432

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41570

American (AMR)

AF:

0.00

AC:

AN:

15310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00156

AC:

AN:

5138

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68002

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000227

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 27, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.245G>A (p.S82N) alteration is located in exon 2 (coding exon 2) of the VSTM2B gene. This alteration results from a G to A substitution at nucleotide position 245, causing the serine (S) at amino acid position 82 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

0.19

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.22

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.010

Eigen

Uncertain

0.63

Eigen_PC

Uncertain

0.59

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.68

M_CAP

Uncertain

0.17

MetaRNN

Benign

0.077

MetaSVM

Uncertain

0.32

MutationAssessor

Uncertain

2.1

PhyloP100

5.4

PrimateAI

Uncertain

0.70

PROVEAN

Benign

-1.4

REVEL

Uncertain

0.51

Sift

Benign

0.031

Sift4G

Uncertain

0.057

Polyphen

1.0

Vest4

0.36

MutPred

0.45

Gain of catalytic residue at S82 (P = 0.0203);

MVP

0.47

ClinPred

0.15

GERP RS

4.5

Varity_R

0.31

gMVP

0.54

Mutation Taster

=39/61

disease causing

(source)

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

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chr19-29527373-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over