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Terminal events in protein synthesis were studied with trinucleotide codons. Initiator and terminator trinucleotides sequentially stimulate N-formyl-methionyl-tRNA binding to ribosomes and the release of free N-formyl-methionine from the ribosomal intermediate. The release factor discovered by Capecchi is also required. The trinucleotides UGA, UAA, and UAG(More)
When Amphiuma red cells are shrunken in hypertonic media, they return toward their original volume by gaining Na through an amiloride-sensitive pathway. As cells recover their volume during this volume-regulatory increase (VRI) response, acid is extruded into the medium. Medium acidification is correlated with cell Na uptake. Both medium acidification and(More)
Inactivation of rat liver S-adenosylhomocysteine hydrolase by the site-directed reagent 5'-p-fluorosulfonylbenzoyladenosine (FSBA) is associated with the formation of a disulfide bond between Cys-78 and Cys-112 (Takata, Y., and Fujioka, M. (1984) Biochemistry 23, 4357-4362; Gomi, T., Ogawa, H., and Fujioka, M. (1986) J. Biol. Chem. 261, 13422-13425). To(More)
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