Phosphatase activities were investigated in Morganella morganii, which is one of the few enterobacterial species producing high-level phosphate-irrepressible acid phosphatase activity (HPAP phenotype), and the gene encoding the major phosphate-irrepressible acid phosphatase was cloned, sequenced, and its product characterized. Using p-nitrophenyl phosphate as substrate, Morganella produced a ma...

Histidine decarboxylases from Klebsiella planticola and Enterobacter aerogenes were purified to homogeneity and compared with the histidine decarboxylase from Morganella morganii. All three enzymes required pyridoxal 5'-phosphate as a coenzyme, showed optimal activity at pH 6.5, decarboxylated only histidine among the amino acids derived from protein, and were tetramers or dimers of identical s...

BACKGROUND AND PURPOSE To clarify the clinical characteristics and risk factors for mortality of patients with Morganella morganii bacteremia. METHODS Retrospective analyses were undertaken of patients with M. morganii bacteremia treated at Chang Gung Memorial Hospital-Kaohsiung, between 2002 and 2003. RESULTS Seventy three patients (39 male, 34 female; mean age, 64.43 +/- 16.58 years) were...

X X Ž X . The phosphorylation of inosine in the 5 -position to produce inosine-5 -monophosphate 5 -IMP was studied in a number Ž . of microorganisms from our culture collection using pyrophosphate PPi as the phosphate source. Although many of the microorganisms screened were able to phosphorylate inosine, phosphotransferase activity specific to the 5-position was found to be distributed among t...

DHA-1, a plasmid-mediated cephalosporinase from a single clinical Salmonella enteritidis isolate, conferred resistance to oxyimino-cephalosporins (cefotaxime and ceftazidime) and cephamycins (cefoxitin and moxalactam), and this resistance was transferable to Escherichia coli HB101. An antagonism was observed between cefoxitin and aztreonam by the diffusion method. Transformation of the transcon...