Genetic Variant TM4SF1:p.Val54Ile (chr3-149377388-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

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

The NM_014220.3(TM4SF1):c.160G>A(p.Val54Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000304 in 1,613,744 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

TM4SF1
NM_014220.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.482

Variant links:

Genes affected

TM4SF1 (HGNC:11853): (transmembrane 4 L six family member 1) The protein encoded by this gene is a member of the transmembrane 4 superfamily, also known as the tetraspanin family. Most of these members are cell-surface proteins that are characterized by the presence of four hydrophobic domains. The proteins mediate signal transduction events that play a role in the regulation of cell development, activation, growth and motility. This encoded protein is a cell surface antigen and is highly expressed in different carcinomas. [provided by RefSeq, Jul 2008]

TM4SF1 links:

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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=0.06622869).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TM4SF1	NM_014220.3 link	c.160G>A	p.Val54Ile	missense_variant	Exon 1 of 5	ENST00000305366.8	NP_055035.1	P30408
TM4SF1	NM_001410837.1 link	c.160G>A	p.Val54Ile	missense_variant	Exon 1 of 3		NP_001397766.1
TM4SF1	XM_017006385.3 link	c.160G>A	p.Val54Ile	missense_variant	Exon 1 of 5		XP_016861874.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TM4SF1	ENST00000305366.8 link	c.160G>A	p.Val54Ile	missense_variant	Exon 1 of 5	1	NM_014220.3	ENSP00000304277.3	P30408
TM4SF1	ENST00000493298.1 link	n.160G>A		non_coding_transcript_exon_variant	Exon 1 of 3	4		ENSP00000418025.1	F8WBG6
TM4SF1	ENST00000493348.1 link	n.160G>A		non_coding_transcript_exon_variant	Exon 1 of 4	2		ENSP00000419426.1	F8WF27

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152218

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.00000797

AC:

AN:

250998

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135630

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000322

AC:

AN:

1461526

Hom.:

Cov.:

AF XY:

0.0000358

AC XY:

AN XY:

727042

show subpopulations

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:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000369

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152218

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74364

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.0000675

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.0000247

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 07, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.160G>A (p.V54I) alteration is located in exon 1 (coding exon 1) of the TM4SF1 gene. This alteration results from a G to A substitution at nucleotide position 160, causing the valine (V) at amino acid position 54 to be replaced by an isoleucine (I). 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

0.074

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.73

CADD

Benign

8.9

DANN

Benign

0.87

DEOGEN2

Benign

0.013

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.17

LIST_S2

Benign

0.59

M_CAP

Benign

0.0078

MetaRNN

Benign

0.066

MetaSVM

Benign

-0.97

MutationAssessor

Benign

0.060

PrimateAI

Benign

0.23

PROVEAN

Benign

0.46

REVEL

Benign

0.012

Sift

Benign

0.41

Sift4G

Benign

1.0

Polyphen

0.0020

Vest4

0.045

MutPred

0.46

Loss of glycosylation at S51 (P = 0.066);

MVP

0.030

MPC

0.041

ClinPred

0.019

GERP RS

-2.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.021

gMVP

0.24

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over