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texto impreso
The lipoyl domains of 2-oxo acid dehydrogenase multienzyme complexes and the biotinyl domains of biotin-dependent enzymes have homologous structures, but the target lysine residue in each domain is correctly selected for posttranslational modifi[...]texto impreso
Reductive acetylation of the lipoyl domain (E2plip) of the dihydrolipoyl acetyltransferase component of the pyruvate dehydrogenase multienzyme complex of Escherichia coli is catalysed specifically by its partner pyruvate decarboxylase (E1p), and[...]texto impreso
Biotin-dependent enzymes contain a biotinyl-lysine residue in a conserved sequence motif, MKM, located in a surface hairpin turn in one of the two beta-sheets that make up the domain. A sub-gene encoding the 82-residue C-terminal biotinyl domain[...]texto impreso
The lipoyl domains of the dihydrolipoyl acyltransferase (E2p, E2o) components of the pyruvate and 2-oxoglutarate dehydrogenase multienzyme complexes are specifically recognised by their cognate 2-oxo acid decarboxylase (E1p, E1o). A prominent su[...]texto impreso
The post-translational attachment of biotin and lipoic acid to specific lysine residues displayed in protruding beta-turns in homologous biotinyl and lipoyl domains of their parent enzymes is catalysed by two different ligases. We have expressed[...]
