Control of transcription termination by RNA-binding proteins.

Abstract

TRANSCRIPTION ME CHANI SMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 895 RNA Polymerase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 895 Trans�ripti�n. I,!itiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 896 AbortIve ImttatlOn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 897 The Inchworm Model of Transcript Elongation . . . . . . . . . . . . . . . . . . . . . . 897 The Elongation-Termination Decision . . . . . . . . . . . . . . . . . . . . . . . . . . . . 899 A Novel Mechanism of Termination in Plasmid ColEI . . . . .. . . . . . . . . . . . 902 Transcription Arrest and Resumption of Elongation by Transcript Cleavage . . . . 902 CONTROL OF TRANSCRIPTION TERMINATION . . . . . . . . . . . . . . . . . ... 904 Factors Inducing Intrinsic Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . 904 E . coli Rho Protein: A Global Termination Factor . . . ... . . . ... . ..... . 904 E. coli BglG Protein: A Suppressor of Intrinsic Termination . . . . . . . . . . . . . . 907 Suppressors of Rho-Dependent Termination . . . . . . . . . . . . . . . . . . . . . . . . 908 Phage}.. N and Q Proteins: Antiterminators That Alter RNAP . . . . . . . . . . . . . 908 Phage HK022 Nun Protein: A Factor With Reversible Functions? .. . . . . . . . . 9 1 8 HIV Tat Protein: A Transcription Processivity Factor . . . . . . . . . . . . . . . . . . 919