rs734375

Positions:

• chr17-61404012-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_005994.4(TBX2):​c.811-409C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0744 in 152,206 control chromosomes in the GnomAD database, including 1,348 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.074 (1348 hom., cov: 33)
• Consequence: TBX2 NM_005994.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.164

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

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.75).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.245 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TBX2	NM_005994.4	c.811-409C>T		intron_variant		ENST00000240328.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TBX2	ENST00000240328.4	c.811-409C>T		intron_variant		1	NM_005994.4	P1
TBX2	ENST00000419047.5	c.*348-409C>T		intron_variant, NMD_transcript_variant		1
TBX2-AS1	ENST00000592009.1	n.40+7504G>A		intron_variant, non_coding_transcript_variant		3
TBX2	ENST00000477081.1	n.623-409C>T		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes AF: 0.0742 AC: 11280 AN: 152088 Hom.: 1342 Cov.: 33

Gnomad AFR AF: 0.249

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0326

Gnomad ASJ AF: 0.000289

Gnomad EAS AF: 0.0455

Gnomad SAS AF: 0.0106

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.0380

Gnomad NFE AF: 0.00123

Gnomad OTH AF: 0.0420

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

GnomAD4 genome AF: 0.0744 AC: 11319 AN: 152206 Hom.: 1348 Cov.: 33 AF XY: 0.0712 AC XY: 5300 AN XY: 74412

Gnomad4 AFR AF: 0.250

Gnomad4 AMR AF: 0.0326

Gnomad4 ASJ AF: 0.000289

Gnomad4 EAS AF: 0.0453

Gnomad4 SAS AF: 0.0101

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00123

Gnomad4 OTH AF: 0.0416

Alfa AF: 0.0599 Hom.: 115

Bravo AF: 0.0848

Asia WGS AF: 0.0590 AC: 206 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.75
CADD	Benign	5.8
DANN	Benign	0.82

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

Other links and lift over

dbSNP: rs734375; hg19: chr17-59481373;