Variant chr3-114308127-G-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_173799.4(TIGIT):c.731G>A(p.Gly244Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000164 in 1,613,634 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: 𝑓 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

TIGIT
NM_173799.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0170

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 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=0.047507465).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
TIGIT	NM_173799.4 linkuse as main transcript	c.731G>A	p.Gly244Asp	missense_variant	4/4	ENST00000383671.8
TIGIT	XM_047447671.1 linkuse as main transcript	c.728G>A	p.Gly243Asp	missense_variant	4/4
TIGIT	XM_047447672.1 linkuse as main transcript	c.368G>A	p.Gly123Asp	missense_variant	3/3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TIGIT	ENST00000383671.8 linkuse as main transcript	c.731G>A	p.Gly244Asp	missense_variant	4/4	1	NM_173799.4	P1	Q495A1-1
TIGIT	ENST00000481065.5 linkuse as main transcript	c.932G>A	p.Gly311Asp	missense_variant	5/5	2
TIGIT	ENST00000486257.5 linkuse as main transcript	c.731G>A	p.Gly244Asp	missense_variant	5/5	5		P1	Q495A1-1

Frequencies

GnomAD3 genomes

AF:

0.0000592

AC:

AN:

152152

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000944

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000718

AC:

AN:

250812

Hom.:

AF XY:

0.0000590

AC XY:

AN XY:

135552

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:

0.0000463

Gnomad NFE exome

AF:

0.000141

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000174

AC:

255

AN:

1461482

Hom.:

Cov.:

AF XY:

0.000150

AC XY:

109

AN XY:

727046

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:

0.00

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.000227

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000592

AC:

AN:

152152

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74318

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000944

Gnomad4 NFE

AF:

0.0000882

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000176

Hom.:

Bravo

AF:

0.0000756

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.0000494

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000119

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

Nov 14, 2023

The c.731G>A (p.G244D) alteration is located in exon 4 (coding exon 4) of the TIGIT gene. This alteration results from a G to A substitution at nucleotide position 731, causing the glycine (G) at amino acid position 244 to be replaced by an aspartic acid (D). 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

0.13

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.34

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.092

.;T;T

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.082

LIST_S2

Benign

0.51

T;.;T

M_CAP

Benign

0.033

MetaRNN

Benign

0.048

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.9

.;L;L

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.35

PROVEAN

Benign

-1.0

N;N;N

REVEL

Benign

0.078

Sift

Pathogenic

0.0

D;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

0.0050

.;B;B

Vest4

0.18

MVP

0.22

MPC

0.58

ClinPred

0.12

GERP RS

-2.8

Varity_R

0.17

gMVP

0.12

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