Swapna, G. and Chakraborty, A. and Kumari, V. and Sen, Ranjan and Nagaraja, V. (2011) Mutations in β′ subunit of Escherichia coli RNA polymerase perturb the activator polymerase functional interaction required for promoter clearance. Molecular Microbiology, 80 (5). pp. 1169-1185. ISSN 0950-382X