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PNPase. Endoribonuclease (sufficient for cell viability). Linker & RBD. Protein scaffold. S1 Domain. RBD. AR2. RhIB. Enolase. The mystery of the enolase pocket. E. coli RNase E is a multifunctional protein complex. Conclusions
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PNPase Endoribonuclease (sufficient for cell viability) Linker & RBD Protein scaffold S1 Domain RBD AR2 RhIB Enolase The mystery of the enolase pocket E. coli RNase E is a multifunctional protein complex • Conclusions • Two of the four amino acid residues that directly interact with the cognate RNase E binding site are completely conserved amongst E. coli, yeast, and Methanococcus enolases and one is similar. Yeast is significantly different at the 4th residue position. • Amino acid alignments alone are insufficient and can be misleading in analyzing the functional significance of conserved residues in proteins.