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Ribonuclease P (RNase P) is a ribonucleoprotein complex that catalyzes the formation of the mature 5' end of tRNA. To investigate the role of the protein component in enhancing the affinity of Bacillus subtilis RNase P for substrate (Kurz, J. C., Niranjanakumari, S., Fierke, C. A. (1998) Biochemistry 37, 2393), the kinetics and thermodynamics of binding and(More)
The protein component of ribonuclease P (RNase P) binds to the RNA subunit, forming a functional ribonucleoprotein complex in vivo and enhancing the affinity of the precursor tRNA (pre-tRNA) substrate. Photocrosslinking experiments with pre-tRNA bound to RNase P reconstituted with the protein component of Bacillus subtilis ribonuclease P (P protein) site(More)
Ribonuclease P (RNase P) is a ribonucleoprotein that requires magnesium ions to catalyze the 5' maturation of transfer RNA. To identify interactions essential for catalysis, the properties of RNase P containing single sulfur substitutions for nonbridging phosphodiester oxygens in helix P4 of Bacillus subtilis RNase P were analyzed using transient kinetic(More)
The methylation of the ribose 2'-OH of RNA occurs widely in nature and in all stable RNAs and occurs at five positions in yeast tRNA. 2'-O-methylation of tRNA at position 4 is interesting because it occurs in the acceptor stem (which is normally undermodified), it is the only 2'-O-methylation that occurs in the middle of a duplex region in tRNA, the(More)
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