20-36590980-C-A

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_021809.7(TGIF2):c.263C>A(p.Pro88His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000127 in 1,571,206 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

TGIF2
NM_021809.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.52

Variant links:

Genes affected

TGIF2 (HGNC:15764): (TGFB induced factor homeobox 2) The protein encoded by this gene is a DNA-binding homeobox protein and a transcriptional repressor, which appears to repress transcription by recruiting histone deacetylases to TGF beta-responsive genes. This gene is amplified and over-expressed in some ovarian cancers. Alternative splicing results in multiple transcript variants. A related pseudogene has been identified on chromosome 1. Read-through transcription also exists between this gene and the neighboring downstream C20orf24 (chromosome 20 open reading frame 24) gene. [provided by RefSeq, Dec 2010]

TGIF2 links:

TGIF2-RAB5IF (HGNC:44664): (TGIF2-RAB5IF readthrough) This locus represents naturally occurring read-through transcription between the neighboring TGIF2 (TGFB-induced factor homeobox 2) and C20orf24 (chromosome 20 open reading frame 24) genes. The read-through transcript encodes a fusion protein that shares sequence identity with each individual gene product. [provided by RefSeq, Dec 2010]

TGIF2-RAB5IF links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.789

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TGIF2	NM_021809.7 link	c.263C>A	p.Pro88His	missense_variant	Exon 3 of 3	ENST00000373872.9	NP_068581.1	Q9GZN2-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TGIF2	ENST00000373872.9 link	c.263C>A	p.Pro88His	missense_variant	Exon 3 of 3	1	NM_021809.7	ENSP00000362979.3		Q9GZN2-1
TGIF2-RAB5IF	ENST00000558530.1 link	c.192+12014C>A		intron_variant	Intron 2 of 4	3		ENSP00000454021.1		A0A0A6YYL0

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152202

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:

0.00

GnomAD4 exome

AF:

7.05e-7

AC:

AN:

1419004

Hom.:

Cov.:

AF XY:

0.00000143

AC XY:

AN XY:

700984

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:

9.19e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152202

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74350

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:

0.00

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 28, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.263C>A (p.P88H) alteration is located in exon 3 (coding exon 2) of the TGIF2 gene. This alteration results from a C to A substitution at nucleotide position 263, causing the proline (P) at amino acid position 88 to be replaced by a histidine (H). 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

Pathogenic

1.0

BayesDel_addAF

Uncertain

0.14

BayesDel_noAF

Uncertain

-0.030

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.81

D;D;T;D;D

Eigen

Pathogenic

0.71

Eigen_PC

Pathogenic

0.68

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.93

.;.;D;D;.

M_CAP

Uncertain

0.20

MetaRNN

Pathogenic

0.79

D;D;D;D;D

MetaSVM

Uncertain

0.46

MutationAssessor

Uncertain

2.5

M;M;.;M;M

PrimateAI

Uncertain

0.79

PROVEAN

Pathogenic

-8.5

D;D;D;.;D

REVEL

Uncertain

0.55

Sift

Uncertain

0.0020

D;D;D;.;D

Sift4G

Pathogenic

0.0010

D;D;D;D;D

Polyphen

1.0

D;D;.;D;D

Vest4

0.74

MutPred

0.28

Loss of glycosylation at P88 (P = 0.0368);Loss of glycosylation at P88 (P = 0.0368);Loss of glycosylation at P88 (P = 0.0368);Loss of glycosylation at P88 (P = 0.0368);Loss of glycosylation at P88 (P = 0.0368);

MVP

0.98

MPC

1.4

ClinPred

1.0

GERP RS

4.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.77

gMVP

0.92

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

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