Variant 17-61400362-C-CGCG details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP3BP6BS1BS2

The NM_005994.4(TBX2):c.201_203dupGGC(p.Ala68dup) variant causes a disruptive inframe insertion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00122 in 1,033,824 control chromosomes in the GnomAD database, including 10 homozygotes. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.0054 ( 7 hom., cov: 32)

Exomes 𝑓: 0.00054 ( 3 hom. )

Consequence

TBX2
NM_005994.4 disruptive_inframe_insertion

Scores

Not classified

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 1.53

Variant links:

Genes affected

TBX2 (HGNC:11597): (T-box transcription factor 2) This gene is a member of a phylogenetically conserved family of genes that share a common DNA-binding domain, the T-box. T-box genes encode transcription factors involved in the regulation of developmental processes. This gene product is the human homolog of mouse Tbx2, and shares strong sequence similarity with Drosophila omb protein. Expression studies indicate that this gene may have a potential role in tumorigenesis as an immortalizing agent. Transcript heterogeneity due to alternative polyadenylation has been noted for this gene. [provided by RefSeq, Jul 2008]

TBX2 links:

TBX2-AS1 (HGNC:50355): (TBX2 antisense RNA 1)

TBX2-AS1 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP3

Nonframeshift variant in repetitive region in NM_005994.4

BP6

Variant 17-61400362-C-CGCG is Benign according to our data. Variant chr17-61400362-C-CGCG is described in ClinVar as [Likely_benign]. Clinvar id is 3055119.Status of the report is no_assertion_criteria_provided, 0 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00537 (790/147004) while in subpopulation AFR AF= 0.0178 (730/41008). AF 95% confidence interval is 0.0167. There are 7 homozygotes in gnomad4. There are 382 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 790 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TBX2	NM_005994.4 link	c.201_203dupGGC	p.Ala68dup	disruptive_inframe_insertion	Exon 1 of 7	ENST00000240328.4	NP_005985.3	Q13207A0A024QZ86

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TBX2	ENST00000240328.4 link	c.201_203dupGGC	p.Ala68dup	disruptive_inframe_insertion	Exon 1 of 7	1	NM_005994.4	ENSP00000240328.3		Q13207

Frequencies

GnomAD3 genomes

AF:

0.00538

AC:

790

AN:

146900

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0179

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00271

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000196

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.000116

Gnomad MID

AF:

0.00321

Gnomad NFE

AF:

0.000136

Gnomad OTH

AF:

0.00346

GnomAD3 exomes

AF:

0.000539

AC:

AN:

1854

Hom.:

AF XY:

0.00

AC XY:

AN XY:

1036

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000628

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000536

AC:

475

AN:

886820

Hom.:

Cov.:

AF XY:

0.000511

AC XY:

212

AN XY:

415132

show subpopulations

Gnomad4 AFR exome

AF:

0.0206

Gnomad4 AMR exome

AF:

0.00164

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000561

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000127

Gnomad4 OTH exome

AF:

0.000659

GnomAD4 genome

AF:

0.00537

AC:

790

AN:

147004

Hom.:

Cov.:

AF XY:

0.00534

AC XY:

382

AN XY:

71556

show subpopulations

Gnomad4 AFR

AF:

0.0178

Gnomad4 AMR

AF:

0.00270

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000197

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.000116

Gnomad4 NFE

AF:

0.000136

Gnomad4 OTH

AF:

0.00342

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

TBX2-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Oct 31, 2023

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

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