Genetic Variant NM_173799.4:c.434_435delCCinsTT (chr3-114299639-CC-TT) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is . The variant received 0 ACMG points: 0P and 0B.

The NM_173799.4(TIGIT):c.434_435delCCinsTT(p.Ala145Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type MNV, and the frequency of such variant types in population databases may be underestimated and unreliable. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

Frequency

Genomes: not found (cov: 32)

Consequence

TIGIT
NM_173799.4 missense

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.659

Publications

0 publications found

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:

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new If you want to explore the variant's impact on the transcript NM_173799.4, check out the Mutation Effect Viewer. This is especially useful for frameshift variants or if you want to visualize the effect of exon loss / intron retention.

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_173799.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TIGIT	NM_173799.4	MANE Select	c.434_435delCCinsTT	p.Ala145Val	missense	N/A	NP_776160.2	Q495A1-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TIGIT	ENST00000383671.8	TSL:1 MANE Select	c.434_435delCCinsTT	p.Ala145Val	missense	N/A	ENSP00000373167.3	Q495A1-1
TIGIT	ENST00000481065.5	TSL:2	c.635_636delCCinsTT	p.Ala212Val	missense	N/A	ENSP00000420552.1	A0A0C4DGA4
TIGIT	ENST00000486257.5	TSL:5	c.434_435delCCinsTT	p.Ala145Val	missense	N/A	ENSP00000419085.1	Q495A1-1

Frequencies

GnomAD3 genomes

Cov.:

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

PhyloP100

0.66

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over