Average length of RNA transcript for various RNA Polymerases

Range ~13.5 pol I: ~15 Pol II: ~0.1 Pol III kb
Organism Eukaryotes
Reference Editor: Dr. Robert A. Meyers, Encyclopedia of Molecular Cell Biology and Molecular Medicine, Dean A. Jackson, The Cell Nucleus: Biogenesis, Structure, and Function, p.5 right column bottom paragraph
Comments The synthetic rates are about 5 kbp/min for Pol I and ~3kbp/min for Pol II/III, respectively, with average transcript lengths of ~13.5, ~15, and ~0.1 kb for Pol I, Pol II, and Pol III, respectively. In a typical proliferating human cell, these values correspond to approximately 20,000, 50,000, and 3,000 engaged Pol I, II, and III complexes, respectively.
Entered by Uri M
ID 107496