What are the Key Proteins Associated with the Fibrillar Center?
Several key proteins are associated with the fibrillar center, contributing to its function in rRNA transcription. These include RNA polymerase I, UBF (Upstream Binding Factor), and SL1 (Selectivity Factor 1). These proteins work together to initiate and regulate the transcription of rRNA genes. Their interactions and functions are critical for maintaining nucleolar integrity and efficient ribosome production.
