SMARCC1
Chr 3ADSWI/SNF related BAF chromatin remodeling complex subunit C1
Also known as: BAF155, CRACC1, HYC5, Rsc8, SRG3, SWI3
SMARCC1 encodes a component of SWI/SNF chromatin remodeling complexes that alters chromatin structure in an ATP-dependent manner and is essential for neural stem cell proliferation and neuronal differentiation. Mutations cause autosomal dominant congenital hydrocephalus with susceptibility to this condition. The gene is highly constrained against loss-of-function variants (pLI >0.99), reflecting its critical role in neurodevelopment.
Definitive — sufficient evidence for diagnostic panels
Population Genetics & Constraint
gnomAD v4 — loss-of-function & missense intolerance
Among the most LoF-intolerant genes (~top 3%)
Moderately missense-constrained (top ~2.5%)
The highest-scoring mechanism for this gene is loss-of-function (haploinsufficiency).
Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312. Mechanism ranking also informed by gnomAD constraint, ClinVar, and ClinGen data.
ClinVar Variant Classifications
0 submitted variants in ClinVar
Protein Context — Lollipop Plot
SMARCC1 · 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