rs7903146

Positions:

• chr10-112998590-C-G
• chr10-112998590-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2 PP5 BP4

The NM_001367943.1(TCF7L2):​c.450+33966C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely risk allele (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: TCF7L2 NM_001367943.1 intron
• Clinical Significance: Likely risk allele no assertion criteria provided P:1
• Conservation: PhyloP100: 0.133

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 Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 10-112998590-C-G is Pathogenic according to our data. Variant chr10-112998590-C-G is described in ClinVar as [Likely_risk_allele]. Clinvar id is 1692994.Status of the report is no_assertion_criteria_provided, 0 stars. We mark this variant Likely_pathogenic, oryginal submission is: [Likely_risk_allele].
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88). . Strength limited to SUPPORTING due to the PP5.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TCF7L2	NM_001367943.1	c.450+33966C>G		intron_variant		ENST00000355995.9	NP_001354872.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TCF7L2	ENST00000355995.9	c.450+33966C>G		intron_variant		1	NM_001367943.1	ENSP00000348274

Frequencies

GnomAD3 genomes Cov.: 32

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

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely risk allele

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Type 2 diabetes mellitus Pathogenic:1

Likely risk allele, no assertion criteria provided

reference population

iDNA Genomics

Jan 09, 2011

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	3.0
DANN	Benign	0.33

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: rs7903146; hg19: chr10-114758349;