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The kinetic and chemical mechanism of serine acetyltransferase from Haemophilus influenzae.
(2004)
The pH dependence of kinetic parameters was determined in both reaction directions in order to obtain information on the acid-base chemical mechanism of serine acetyltransferase from Haemophilus influenzae ( HiSAT). The ...
Dissecting the reaction mechanism of sheep liver 6-phosphogluconate dehydrogenase.
(2000)
In the second part of the research, three additional mutants, S 128A, H 186A and N187A were characterized in the same manner as the K183 mutant enzymes. The decrease in the activity compared to the wild type enzyme is about ...
The structure and function of YPD1, a histidine-containing phosphotransfer protein from yeast.
(2001)
Finally, through molecular modeling and structural comparisons, a general model of how YPD1 and response regulator domains might interact was proposed. It seems likely that YPD1 binds to response regulator domains through ...
Identification and analysis of the response regulator binding site on the surface of the histidine-containing phosphotransfer protein YPD1 from Saccharomyces cerevisiae.
(2003)
The results from the yeast two-hybrid screens were confirmed by the X-ray crystal structure of the SLN1-R1/YPD1 complex. This structure is the first to reveal protein-protein interactions between a monomeric HPt domain and ...
Iron uptake in Gram-negative and Gram-positive bacteria.
(2006)
Bacteria, including both Gram-positive and Gram-negative bacteria, utilize iron sources from the environment. Iron uptake systems in Gram-negative bacteria are well studied. Escherichia coli FepA transports certain catecholate ...
Binding and transport through ferric siderophore receptors, FepA and FhuA.
(2006)
Under iron deficient conditions, Gram-negative bacteria like E. coli secrete siderophores to chelate iron in the extracellular medium. Ligand-gated porins (LGPs) transport the ferric siderophore complexes across the outer ...