rs7068741

Variant names:

• chr10-112996499-C-T
• rs7068741
• NM_001367943.1:c.450+31875C>T

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001367943.1(TCF7L2):​c.450+31875C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0451 in 152,242 control chromosomes in the GnomAD database, including 472 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 0.045 (472 hom., cov: 32)
• Consequence: TCF7L2 NM_001367943.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.487
• Publications: 5 publications found

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]

TCF7L2 Gene-Disease associations (from GenCC):

• complex neurodevelopmental disorder

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• neurodevelopmental disorder

  Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
• intellectual disability

  Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
• congenital glaucoma

  Inheritance: Unknown Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.152 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TCF7L2	NM_001367943.1	c.450+31875C>T		intron_variant	Intron 4 of 14	ENST00000355995.9	NP_001354872.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TCF7L2	ENST00000355995.9	c.450+31875C>T		intron_variant	Intron 4 of 14	1	NM_001367943.1	ENSP00000348274.4

Frequencies

GnomAD3 genomes AF: 0.0450 AC: 6839 AN: 152124 Hom.: 463 Cov.: 32

Gnomad AFR AF: 0.155

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0177

Gnomad ASJ AF: 0.00288

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000829

Gnomad FIN AF: 0.0000942

Gnomad MID AF: 0.0285

Gnomad NFE AF: 0.000999

Gnomad OTH AF: 0.0339

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

GnomAD4 genome AF: 0.0451 AC: 6870 AN: 152242 Hom.: 472 Cov.: 32 AF XY: 0.0438 AC XY: 3258 AN XY: 74426

African (AFR) AF: 0.155 AC: 6442 AN: 41506

American (AMR) AF: 0.0176 AC: 269 AN: 15302

Ashkenazi Jewish (ASJ) AF: 0.00288 AC: 10 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5180

South Asian (SAS) AF: 0.000415 AC: 2 AN: 4822

European-Finnish (FIN) AF: 0.0000942 AC: 1 AN: 10614

Middle Eastern (MID) AF: 0.0238 AC: 7 AN: 294

European-Non Finnish (NFE) AF: 0.00100 AC: 68 AN: 68028

Other (OTH) AF: 0.0336 AC: 71 AN: 2116

Alfa AF: 0.0356 Hom.: 39

Bravo AF: 0.0510

Asia WGS AF: 0.0110 AC: 40 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
CADD	Benign	0.83
DANN	Benign	0.26
PhyloP100		-0.49
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs7068741; hg19: chr10-114756258;