19-54042298-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_198481.4(VSTM1):c.466A>G(p.Ile156Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,872 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 28)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: VSTM1 NM_198481.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.117

Genes affected

VSTM1 (HGNC:29455): (V-set and transmembrane domain containing 1) Predicted to enable cytokine activity. Predicted to be involved in immune system process and signal transduction. Predicted to be located in extracellular space. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.15520722).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
VSTM1	NM_198481.4	c.466A>G	p.Ile156Val	missense_variant	5/9	ENST00000338372.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
VSTM1	ENST00000338372.7	c.466A>G	p.Ile156Val	missense_variant	5/9	1	NM_198481.4	P2

Frequencies

GnomAD3 genomes Cov.: 28

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461872 Hom.: 0 Cov.: 35 AF XY: 0.00 AC XY: 0 AN XY: 727234

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000224

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: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 28

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 12, 2024

The c.466A>G (p.I156V) alteration is located in exon 5 (coding exon 5) of the VSTM1 gene. This alteration results from a A to G substitution at nucleotide position 466, causing the isoleucine (I) at amino acid position 156 to be replaced by a valine (V). 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	0.18
BayesDel_addAF	Benign	-0.19	T
BayesDel_noAF	Benign	-0.51
Cadd	Benign	17
Dann	Uncertain	1.0
DEOGEN2	Benign	0.0046	T;.
Eigen	Benign	-0.022
Eigen_PC	Benign	-0.11
FATHMM_MKL	Benign	0.22	N
M_CAP	Benign	0.0062	T
MetaRNN	Benign	0.16	T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.3	L;.
MutationTaster	Benign	1.0	D;D;N;N
PrimateAI	Benign	0.39	T
PROVEAN	Benign	-0.21	N;.
REVEL	Benign	0.070
Sift	Uncertain	0.0030	D;.
Sift4G	Benign	0.083	T;D
Polyphen		1.0	D;.
Vest4		0.10
MutPred		0.40		Gain of sheet (P = 0.0827);.;
MVP		0.12
MPC		0.47
ClinPred		0.78	D
GERP RS		3.6
Varity_R		0.13
gMVP		0.034

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-54545552;