Genetic Variant VSTM2B:p.His19Tyr (chr19-29526638-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_001146339.2(VSTM2B):c.55C>T(p.His19Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: 31)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

VSTM2B
NM_001146339.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.163

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:

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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=0.11993995).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
VSTM2B	NM_001146339.2 link	c.55C>T	p.His19Tyr	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
VSTM2B	ENST00000335523.8 link	c.55C>T	p.His19Tyr	missense_variant	Exon 1 of 5	5	NM_001146339.2	ENSP00000335038.6		A6NLU5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1378472

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

680348

African (AFR)

AF:

0.00

AC:

AN:

30924

American (AMR)

AF:

0.00

AC:

AN:

35214

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24978

East Asian (EAS)

AF:

0.00

AC:

AN:

35148

South Asian (SAS)

AF:

0.00

AC:

AN:

78142

European-Finnish (FIN)

AF:

0.00

AC:

AN:

34962

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5622

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1075842

Other (OTH)

AF:

0.00

AC:

AN:

57640

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 28, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.55C>T (p.H19Y) alteration is located in exon 1 (coding exon 1) of the VSTM2B gene. This alteration results from a C to T substitution at nucleotide position 55, causing the histidine (H) at amino acid position 19 to be replaced by a tyrosine (Y). 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

0.10

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.64

CADD

Benign

(source)

DANN

Uncertain

0.97

DEOGEN2

Benign

0.0050

Eigen

Benign

-0.31

Eigen_PC

Benign

-0.17

FATHMM_MKL

Uncertain

0.77

LIST_S2

Benign

0.41

M_CAP

Uncertain

0.16

MetaRNN

Benign

0.12

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.55

PhyloP100

-0.16

PrimateAI

Pathogenic

0.90

PROVEAN

Benign

-0.64

REVEL

Benign

0.13

Sift

Benign

0.77

Sift4G

Benign

0.87

Polyphen

0.52

Vest4

0.24

MutPred

0.50

Gain of catalytic residue at H19 (P = 0.0626);

MVP

0.030

ClinPred

0.19

GERP RS

3.9

Varity_R

0.11

gMVP

0.44

Mutation Taster

=84/16

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over