rs7917983

Positions:

• chr10-112973123-T-C
• chr10-112973123-T-G

Variant summary

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

The NM_001367943.1(TCF7L2):​c.450+8499T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.573 in 152,058 control chromosomes in the GnomAD database, including 26,573 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 0.57 (26573 hom., cov: 32)
• Consequence: TCF7L2 NM_001367943.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.607

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=-0.93).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.78 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TCF7L2	NM_001367943.1	c.450+8499T>C		intron_variant		ENST00000355995.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TCF7L2	ENST00000355995.9	c.450+8499T>C		intron_variant		1	NM_001367943.1

Frequencies

GnomAD3 genomes AF: 0.573 AC: 87066 AN: 151940 Hom.: 26521 Cov.: 32

Gnomad AFR AF: 0.786

Gnomad AMI AF: 0.520

Gnomad AMR AF: 0.489

Gnomad ASJ AF: 0.582

Gnomad EAS AF: 0.712

Gnomad SAS AF: 0.538

Gnomad FIN AF: 0.430

Gnomad MID AF: 0.563

Gnomad NFE AF: 0.476

Gnomad OTH AF: 0.597

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

GnomAD4 genome AF: 0.573 AC: 87167 AN: 152058 Hom.: 26573 Cov.: 32 AF XY: 0.569 AC XY: 42297 AN XY: 74308

Gnomad4 AFR AF: 0.787

Gnomad4 AMR AF: 0.488

Gnomad4 ASJ AF: 0.582

Gnomad4 EAS AF: 0.713

Gnomad4 SAS AF: 0.540

Gnomad4 FIN AF: 0.430

Gnomad4 NFE AF: 0.476

Gnomad4 OTH AF: 0.595

Alfa AF: 0.500 Hom.: 11765

Bravo AF: 0.590

Asia WGS AF: 0.601 AC: 2096 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.93
CADD	Benign	1.9
DANN	Benign	0.76

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: rs7917983; hg19: chr10-114732882;