Variant chr3-114307926-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.530G>A(p.Gly177Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,866 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: 6.8e-7 ( 0 hom. )

Consequence

TIGIT
NM_173799.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.682

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=0.05498597).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
TIGIT	NM_173799.4 linkuse as main transcript	c.530G>A	p.Gly177Asp	missense_variant	4/4	ENST00000383671.8
TIGIT	XM_047447671.1 linkuse as main transcript	c.527G>A	p.Gly176Asp	missense_variant	4/4
TIGIT	XM_047447672.1 linkuse as main transcript	c.167G>A	p.Gly56Asp	missense_variant	3/3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TIGIT	ENST00000383671.8 linkuse as main transcript	c.530G>A	p.Gly177Asp	missense_variant	4/4	1	NM_173799.4	P1	Q495A1-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461866

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727230

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:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

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

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 13, 2023

The c.530G>A (p.G177D) 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 530, causing the glycine (G) at amino acid position 177 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

0.084

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Benign

-0.39

CADD

Benign

DANN

Benign

0.30

DEOGEN2

Benign

0.022

T;.;T;T;T

Eigen

Benign

-0.93

Eigen_PC

Benign

-0.95

FATHMM_MKL

Benign

0.071

LIST_S2

Benign

0.40

T;T;.;T;T

M_CAP

Benign

0.0081

MetaRNN

Benign

0.055

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.28

PROVEAN

Benign

-1.4

N;N;N;N;N

REVEL

Benign

0.083

Sift

Benign

0.31

T;T;T;T;T

Sift4G

Benign

0.46

T;T;T;T;T

Polyphen

0.0080

.;.;B;B;.

Vest4

0.095, 0.080, 0.075

MutPred

0.23

.;.;Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);.;

MVP

0.33

MPC

0.15

ClinPred

0.13

GERP RS

1.4

Varity_R

0.063

gMVP

0.27

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over