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Zhou, Chun – ProQuest LLC, 2009
RNA hypermodifications near the anticodon of tRNA are fundamental for the efficiency and fidelity of protein synthesis. Dimethylallyltransferase (DMATase) catalyzes transfer of a dimethylallyl moiety from dimethylallyl pyrophosphate to N6 of A37 in certain tRNAs. We first determined the crystal structures of "Pseudomonas aeruginosa" DMATase.…
Descriptors: Maintenance, Genetics, Microbiology, Biochemistry
Opulencia, Rina Bagsic – ProQuest LLC, 2009
Methanogens are strictly anaerobic Archaea that derive their energy for growth by reducing a limited number of substrates to methane. "Methanosarcina" spp. utilize the methylotrophic pathway to grow on methanol, methylamines and methylsulfides. These compounds enter the methylotrophic pathway as methyl-coenzyme M, the synthesis of which is…
Descriptors: Genetics, Exhibits, Chemistry, Science Education
Thomas, Jacob – ProQuest LLC, 2009
Acyl carrier protein (ACP) is a small essential protein that functions as a carrier of the acyl intermediates of fatty acid synthesis. ACP requires the posttranslational attachment of a 4'phosphopantetheine functional group, derived from CoA, in order to perform its metabolic function. A Mn[superscript 2+] dependent enzymatic activity that removes…
Descriptors: Microbiology, Biochemistry, Genetics