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α-Amino acid ester hydrolases (AEHs) catalyze the synthesis of β-lactam antibiotics containing an α-amino group with decreased activity toward antibiotics with a p-hydroxyl group. The AEH gene from Xanthomonas rubrillineans was cloned and expressed in Escherichia coli. Based on the crystal structure of the AEH and cefprozil complex, 13 residues not directly… (More)
This paper reports the synthesis of a new bioactive complex, 8-hydroxyquinolinato-bis-(salicylato) yttrium (III) (HSAY), whose composition and structure were characterized by elemental analysis, IR spectra, thermogravimetric analysis, and X-ray diffraction. The power–time curves of the compounds HSAY, C7H6O3, C9H7NO, and YCl3·6H2O on the growth metabolism… (More)
[This corrects the article on p. 1464 in vol. 11, PMID: 27857751.].