SLC30A9
Chr 4ARsolute carrier family 30 member 9
Also known as: BILAPES, C4orf1, GAC63, HUEL, ZNT9
The protein functions as a mitochondrial proton-coupled zinc antiporter that exports zinc from mitochondria and maintains zinc homeostasis, mitochondrial morphology, and mitochondrial health. Mutations cause Birk-Landau-Perez syndrome, inherited in an autosomal recessive pattern. The gene shows tolerance to loss-of-function variants (LOEUF 0.679), suggesting complete loss of function may be required for disease manifestation.
Definitive — sufficient evidence for diagnostic panels
Population Genetics & Constraint
gnomAD v4 — loss-of-function & missense intolerance
Typical tolerance to LoF variation
Mild missense constraint
The highest-scoring mechanism for this gene is dominant-negative.
Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.
Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.
ClinVar Variant Classifications
118 submitted variants in ClinVar
Classification Summary
Curated Variants Distribution
Classified variants from ClinVar · 5 ACMG categories
| Classification | LoF | Missense + Inframe | Non-coding | Synonymous | Total |
|---|---|---|---|---|---|
Pathogenic | 1 | 1 | 16 | 0 | 18 |
Likely Pathogenic | 4 | 0 | 0 | 0 | 4 |
VUS | 0 | 54 | 4 | 1 | 59 |
Likely Benign | 0 | 4 | 0 | 4 | 8 |
Benign | 0 | 3 | 3 | 3 | 9 |
Conflicting | — | 1 | |||
| Total | 5 | 62 | 23 | 8 | 99 |
LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly
View in ClinVar →Protein Context — Lollipop Plot
SLC30A9 · protein map & ClinVar variants
Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.
3D Protein StructureAlphaFold
External Resources
Links to major genomics databases and tools
Clinical Trials
Active and recruiting trials from ClinicalTrials.gov
External Resources
Links to major genomics databases and tools