On the one hand, this type of organizational structure benefits from having individuals entirely dedicated to one function. In some cases, there can be cost savings and efficiency gains in combining functions in this way. However, this type of organizational structure is prone to conflict.
The alpha subunit (RpoA) initiates RNAP assembly by dimerising to form a platform on which the beta subunits can interact. The alpha subunit consists of a N-terminal domain (NTD) and a C-terminal domain (CTD), connected by a short linker.
Eukaryotic RNA Polymerase. 1  three types exist Type of Polymerase. Product. 2  protein is greater than 500 kd in size. 3  two large subunits; <10 small subunits; largest subunit is homologous to beta', second largest subunit is homologous to the beta subunit. 4  many non-polymerase factors required for binding of the enzyme to DNA.