BBS9, variants, traits, and what the research shows

BBS9 - what this gene does

BBS9 is a human gene with 537 catalogued variants in current databases. Its top variants cluster around two broad trait themes: rare disease and metabolic conditions.

Key takeaways

• BBS9 has 537 variants on file, making it one of the more extensively catalogued genes in rare disease research.
• Nearly all of the top 20 highest-ranked variants fall under the rare disease trait theme, pointing to a concentrated signal in that area.
• One top variant is linked to metabolic traits rather than rare disease, suggesting a secondary area of biological interest.
• All top-ranked variants carry the same high magnitude score, reflecting consistent evidence weighting across the dataset.
• These are population-level statistical signals, not individual health predictions.

Notable variants

The top 20 variants on file all carry a magnitude score of 5.50 (a numerical measure used to rank variants by the combined strength and breadth of their associated evidence). The rare disease category dominates, with rs1044033927, rs116262072, rs1266192229, rs1279852557, rs137962929, rs138072724, and rs139235142 all sharing that classification. One variant stands apart: rs137852858 carries a metabolic trait association rather than a rare disease one, making it the only metabolic-category entry in the top 20.

Trait associations

The rare disease theme is the dominant signal in this gene's variant catalog, appearing in 19 of the top 20 ranked entries. This concentration across multiple independent variants, including rs1044033927, rs116262072, rs142434516, and rs144112103, strengthens confidence that the gene has biological relevance to rare disease processes. A metabolic association also appears through rs137852858, though this is a single entry among the top-ranked variants and should be regarded as a preliminary signal pending further evidence.

Evidence quality

No individual study summaries are currently available for this gene's variants, which limits interpretation of effect sizes and replication status. The magnitude scores of 5.50 across all top-ranked variants reflect consistent weighting in the source data, but without odds ratios (the ratio comparing how often a trait occurs in people with vs. without a variant) or cohort sample size details, these scores alone do not confirm clinical significance. The rare disease signal draws strength from the number and consistency of top-ranked variants pointing in the same direction, but formal replication data across independent cohorts is not yet represented in this dataset. The metabolic signal from rs137852858 rests on a single catalogued entry and should be treated as preliminary.

What this is NOT

These variants are population-level statistical signals, not deterministic predictors for any individual person. Nothing on this page constitutes a prescription, diagnosis, or recommendation for any action.