Variant 3-114299639-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_173799.4(TIGIT):c.434C>T(p.Ala145Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000548 in 1,461,082 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

TIGIT
NM_173799.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.659

Variant links:

Genes affected

TIGIT (HGNC:26838): (T cell immunoreceptor with Ig and ITIM domains) This gene encodes a member of the PVR (poliovirus receptor) family of immunoglobin proteins. The product of this gene is expressed on several classes of T cells including follicular B helper T cells (TFH). The protein has been shown to bind PVR with high affinity; this binding is thought to assist interactions between TFH and dendritic cells to regulate T cell dependent B cell responses.[provided by RefSeq, Sep 2009]

TIGIT links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

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=0.073890865).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
TIGIT	NM_173799.4 linkuse as main transcript	c.434C>T	p.Ala145Val	missense_variant	3/4	ENST00000383671.8	NP_776160.2
TIGIT	XM_047447671.1 linkuse as main transcript	c.434C>T	p.Ala145Val	missense_variant	3/4		XP_047303627.1
TIGIT	XM_047447672.1 linkuse as main transcript	c.71C>T	p.Ala24Val	missense_variant	2/3		XP_047303628.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TIGIT	ENST00000383671.8 linkuse as main transcript	c.434C>T	p.Ala145Val	missense_variant	3/4	1	NM_173799.4	ENSP00000373167	P1	Q495A1-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000399

AC:

AN:

250916

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135654

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:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000548

AC:

AN:

1461082

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

726866

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000540

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 02, 2022

The c.434C>T (p.A145V) alteration is located in exon 3 (coding exon 3) of the TIGIT gene. This alteration results from a C to T substitution at nucleotide position 434, causing the alanine (A) at amino acid position 145 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

0.10

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.43

CADD

Benign

8.9

DANN

Benign

0.97

DEOGEN2

Benign

0.029

T;.;T;T;T

Eigen

Benign

-0.92

Eigen_PC

Benign

-0.94

FATHMM_MKL

Benign

0.10

LIST_S2

Benign

0.75

T;T;.;T;T

M_CAP

Benign

0.012

MetaRNN

Benign

0.074

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.5

.;.;L;L;.

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.30

PROVEAN

Benign

-1.0

N;N;N;N;N

REVEL

Benign

0.025

Sift

Uncertain

0.0090

D;D;D;D;D

Sift4G

Uncertain

0.018

D;D;D;D;D

Polyphen

0.093

.;.;B;B;.

Vest4

0.24, 0.23, 0.23

MVP

0.24

MPC

0.13

ClinPred

0.074

GERP RS

1.6

Varity_R

0.072

gMVP

0.37

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