The SWI/SNF complex is a multi-subunit protein complex that plays a crucial role in the regulation of gene expression by remodeling chromatin structure. It utilizes ATP to alter the positioning of nucleosomes, thereby facilitating access for transcription factors and other regulatory proteins to DNA. This chromatin remodeling is essential for proper gene activation and repression, making the SWI/SNF complex vital in controlling cellular processes such as differentiation and response to environmental signals.
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