TCF7L2, variants, traits, and what the research shows

TCF7L2 - what this gene does

TCF7L2 is a gene whose variants on file span four trait categories: rare disease, metabolic conditions, cardiovascular phenotypes, and mental health. No mechanistic or functional descriptions are available in the current variant data, so this entry characterizes the gene by its observed association themes.

Key takeaways

• Variants in this gene span rare disease, metabolic, cardiovascular, and mental health categories
• The five highest-magnitude variants all score 5.50, the top tier in the current dataset
• Rare disease is the most frequently represented theme, appearing at every magnitude level on file
• Distinct cardiovascular and metabolic variants also reach the high-magnitude tier
• All associations are population-level statistical signals, not individual risk predictions

Notable variants

Five variants share the highest magnitude score (5.50) on file: rs2136838531, rs2137178349, rs2137179429, and rs2544045443 each carry a rare disease annotation, while rs2137155220 is the sole mental health entry at this tier and stands apart from the rare-disease cluster. At magnitude 4.50, rs182893628 carries a cardiovascular association and rs386418874 a metabolic one; rs72826094 also sits at 4.50 with no trait annotation yet on file. The metabolic theme reappears at magnitude 3.00 in rs1396649788, suggesting that metabolic associations may arise from more than one position within this gene's region.

Trait associations

Rare disease is the dominant theme in the dataset, represented across the magnitude-5.50 cluster (rs2136838531, rs2137178349, rs2137179429, rs2544045443), the magnitude-5.00 pair (rs2136929776, rs2137178800), and the majority of the magnitude-3.00 tier. The recurrence of this label across multiple tiers and multiple independent variant positions is a consistent pattern, though the specific conditions involved are not detailed in the available data. Metabolic traits appear at two separate magnitude levels via rs386418874 and rs1396649788. Cardiovascular association is represented by rs182893628. Mental health appears once, in rs2137155220, at the highest magnitude tier; without underlying study data this association cannot be further characterized.

Evidence quality

The most notable pattern in the current dataset is the consistent recurrence of rare-disease trait tags across multiple magnitude tiers, suggesting this theme is not confined to a single isolated variant - though whether it reflects one pleiotropic signal, multiple distinct conditions, or database curation artifacts cannot be determined from the data alone. No prior research summaries have been loaded for any of the 217 variants on file; the 47 flagged for summaries are pending. Available information is limited to variant identifiers, internal magnitude scores (ranking signals, not odds ratios or beta coefficients), and broad trait-category labels. Without sample sizes, effect sizes, replication cohorts, or study designs, the strength and directionality of individual associations cannot be assessed.

What this is NOT

Every variant listed here is a population-level statistical signal from large-scale genomic studies - GWAS (genome-wide association studies, which scan hundreds of thousands of genome positions for statistical links to traits across large groups of people) and similar methods - not a deterministic predictor of any individual's health outcome. This page does not prescribe, diagnose, or recommend any clinical or lifestyle action based on genetic information.