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Example sentences for: pdtc
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These same strains plus P. aeruginosa PAO1, P. putida mt2, and P. fluorescens F113 were also shown not to produce pdtc [ 17 ] . Pdtc production in bacteria other than P. stutzeri strain KC is limited to
The CSC-induced increase in IL-1β expression was also reduced by treatment of the cells with PD98059 or the NFκB inhibitor, PDTC (Fig.
Pyridine-2,6-bis(thiocarboxylic acid) (pdtc) is an iron-regulated metabolite produced by certain pseudomonads that is highly reactive towards metals by virtue of a pair of thiocarboxylate groups and ring nitrogen that combine to form a non-specific, high affinity, tri-dentate ligand (Figure 1) [ 1 2 ] . The formation constants for Co, Cu, and Fe complexes of pdtc were determined to be greater than 10 33 [ 3 ] . Uptake studies using 59Fe showed that addition of pdtc to the growth medium of two different pdtc-producing pseudomonads increased the efficiency of iron uptake by 20% [ 1 ] . The contribution of pdtc to iron uptake may be due to the fact that the copper complex of pdtc (Cu:pdtc) has the ability to reduce both soluble and mineral forms of ferric iron) [ 1 ] . Not surprisingly, in light of its high affinity for essential metals, pdtc also exhibits antimicrobial activity [ 4 ] .
An open reading frame (ORF-F) identified as a necessary part of the Pseudomonas stutzeri pdt locus coding for the synthesis pathway of pdtc (Figure 1) was found to have 57% identity to M. tuberculosis MoeZ at the amino acid (AA) level.
Loss of this function is plausible if pdtc production is a highly specialized function or is only required for survival in extreme or competitive environments.
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