rs290487

Positions:

• chr10-113149972-C-T

Variant summary

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

The NM_001367943.1(TCF7L2):​c.876-1026C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.171 in 152,118 control chromosomes in the GnomAD database, including 2,929 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 0.17 (2929 hom., cov: 32)
• Consequence: TCF7L2 NM_001367943.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.974

Genes affected

TCF7L2 (HGNC:11641): (transcription factor 7 like 2) This gene encodes a high mobility group (HMG) box-containing transcription factor that plays a key role in the Wnt signaling pathway. The protein has been implicated in blood glucose homeostasis. Genetic variants of this gene are associated with increased risk of type 2 diabetes. Several transcript variants encoding multiple different isoforms have been found for this gene.[provided by RefSeq, Oct 2010]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.586 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TCF7L2	NM_001367943.1	c.876-1026C>T		intron_variant		ENST00000355995.9	NP_001354872.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TCF7L2	ENST00000355995.9	c.876-1026C>T		intron_variant		1	NM_001367943.1	ENSP00000348274

Frequencies

GnomAD3 genomes AF: 0.171 AC: 26003 AN: 152000 Hom.: 2926 Cov.: 32

Gnomad AFR AF: 0.0758

Gnomad AMI AF: 0.240

Gnomad AMR AF: 0.192

Gnomad ASJ AF: 0.200

Gnomad EAS AF: 0.604

Gnomad SAS AF: 0.264

Gnomad FIN AF: 0.226

Gnomad MID AF: 0.201

Gnomad NFE AF: 0.173

Gnomad OTH AF: 0.190

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

GnomAD4 genome AF: 0.171 AC: 26011 AN: 152118 Hom.: 2929 Cov.: 32 AF XY: 0.177 AC XY: 13174 AN XY: 74362

Gnomad4 AFR AF: 0.0758

Gnomad4 AMR AF: 0.192

Gnomad4 ASJ AF: 0.200

Gnomad4 EAS AF: 0.604

Gnomad4 SAS AF: 0.264

Gnomad4 FIN AF: 0.226

Gnomad4 NFE AF: 0.173

Gnomad4 OTH AF: 0.190

Alfa AF: 0.176 Hom.: 1911

Bravo AF: 0.167

Asia WGS AF: 0.378 AC: 1312 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	0.11
DANN	Benign	0.40

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: rs290487; hg19: chr10-114909731;