Two distinct regions on the surface of an RNA-binding domain are crucial for RNase E function.

Abstract excerpt

Despite its importance for RNA processing and degradation in Escherichia coli, little is known about the structure of RNase E or its mechanism of action. We have modelled the three-dimensional structure of an essential amino-terminal domain of RNase E on the basis of its sequence homology to the S1 family of RNA-binding domains. Each of the five surface-exposed aromatic residues and most of the 14 basic residues...

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