SMARCC1 Knockout HAP1 Cell Line

The choice depends on whether you are studying SMARCC1 (BAF155)'s role as a core BAF complex subunit or its specific contributions to chromatin remodeling stability. The Knockout line is appropriate for asking whether SMARCC1 is required for BAF complex assembly — SMARCC1 is a core component shared between canonical BAF and PBAF complexes. Overexpression is useful for testing whether elevated SMARCC1 alters complex stoichiometry. Important consideration: SMARCC1 and SMARCC2 (BAF170) are paralogs with partial functional overlap — single SMARCC1 knockout may show effects modulated by SMARCC2 expression levels. The EDITGENE Knockout in HAP1 provides a clean genetic background for studying SMARCC1-specific functions and BAF complex biology. Rescue with wild-type or domain-deletion SMARCC1 enables structure-function dissection.

Primary applications: • BAF complex integrity: glycerol gradient sedimentation analysis to assess complex stability following SMARCC1 loss. • Chromatin accessibility: ATAC-seq comparison between wild-type and knockout to identify SMARCC1-dependent open chromatin sites. • SMARCC1/SMARCC2 paralog studies: SMARCC2 expression analysis and combined knockout studies to dissect paralog-specific functions. • Transcriptomic profiling: RNA-seq to identify gene expression programs requiring SMARCC1-containing BAF complexes. EDITGENE recommends this model for researchers investigating BAF complex assembly, chromatin remodeling, and SWI/SNF family biology.

Yes. SMARCC1 rescue experiments require attention to BAF complex core architecture: • Construct design: use a codon-modified SMARCC1 sequence with a C-terminal tag (FLAG, HA). SMARCC1 contains SANT and SWIRM domains that mediate protein interactions within the BAF complex. • Domain-deletion rescue: separate rescue with SANT or SWIRM domain deletions dissects domain-specific contributions to complex assembly. • Paralog considerations: SMARCC2 (BAF170) expression analysis aids interpretation of SMARCC1-specific rescue effects. • Functional readout: rescue should restore BAF complex integrity and chromatin accessibility at SMARCC1-dependent loci. HAP1-specific considerations: • Diploidization: HAP1 cells gradually diploidize during extended culture — confirm ploidy by flow cytometry at the time of phenotypic assay. • Integration site sensitivity: position effects on transgene expression are more pronounced in near-haploid backgrounds; generating multiple independent rescue clones is strongly recommended. • Transduction efficiency: HAP1 transduces with lentivirus at moderate efficiency — increase MOI compared to standard immortalized lines.