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Gluconeogenesis is a crucial process to support glucose homeostasis when nutritional supply with glucose is insufficient. Because… Expand Reversible protein acetylation is a ubiquitous means for the rapid control of diverse cellular processes. Acetyltransferase… Expand Representative autotrophic and thermophilic archaeal species of different families of Crenarchaeota were examined for key enzymes… Expand The molecular structure of methylmalonyl CoA decarboxylase (MMCD), a newly defined member of the crotonase superfamily encoded by… Expand Efficient energy transfer in heart and skeletal muscle requires a series of moiety-conserved cycles. The intermediaries of the… Expand Human biotin turnover and requirements can be estimated on the basis of (1) concentrations of biotin and metabolites in body… Expand Two X-ray structures of cobalamin (B12) bound to proteins have now been determined. These structures reveal that the B12 cofactor… Expand Definition of specific biochemical functions in higher animals (including humans) for the ultra‐trace elements boron, silicon… Expand Acetyl-CoA carboxylase is the sole biotin enzyme previously reported in plants. Western analysis with 125I-streptavidin of… Expand The metabolism of propane and propionate by a soil isolate (Brevibacterium sp. strain JOB5) was investigated. The presence of… Expand