Crystal structure of Caulobacter crescentus polynucleotide phosphorylase reveals a mechanism of RNA substrate channelling and RNA degradosome assembly

Polynucleotide phosphorylase (PNPase) is an exoribonuclease that cleaves single-stranded RNA substrates with 3′–5′ directionality and processive behaviour. Its ring-like, trimeric architecture creates a central channel where phosphorolytic active sites reside. One face of the ring is decorated with...

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Bibliographic Details
Main Authors: Steven W. Hardwick, Tobias Gubbey, Isabelle Hug, Urs Jenal, Ben F. Luisi
Format: Article
Language:English
Published: The Royal Society 2012-01-01
Series:Open Biology
Subjects:
Online Access:https://royalsocietypublishing.org/doi/pdf/10.1098/rsob.120028