Development of Cultivation Technology for the Escherichia Coli Recombinant Strain Producing Arginine Deiminase of Mycoplasma Hominis

2014 ◽  
Vol 10 (4) ◽  
pp. 29-36 ◽  
Author(s):  
L.R. Fayura ◽  
2013 ◽  
Vol 167 (4) ◽  
pp. 420-426 ◽  
Author(s):  
Lyubov R. Fayura ◽  
Yuriy R. Boretsky ◽  
Yuriy V. Pynyaha ◽  
Denys N. Wheatley ◽  
Andriy A. Sibirny

2011 ◽  
Vol 175-176 ◽  
pp. 192-196 ◽  
Author(s):  
Li Li Feng ◽  
Jian Fei Zhang ◽  
Hui Luo ◽  
Zheng Li ◽  
Hong Jie Zhang

The paper concentrated on the optimization of the recombinant strain BL21 (DE3)-PE7-Nit. The component of culture medium and the culture conditions were optimized. The optimized medium was: yeast extract 10 g/l, L-glutamate sodium 8 g/l, MgSO4.7H2O 0.7 g/l, Isopropyl-β-D-thiogalactopyranoside 0.3 mmol/L, potassium hydrogen phosphate 0.5 g / L, phosphate Potassium 0.5 g / L and the culture condition was: initial pH 7.0, inoculum 2%. The result showed that the activity of nitrilase prepared with these conditions increased by 130.37 % through optimization.


2001 ◽  
Vol 45 (1) ◽  
pp. 356-358 ◽  
Author(s):  
Giuseppantonio Maisetta ◽  
Giovanna Batoni ◽  
Manuela Pardini ◽  
Antonella Boschi ◽  
Daria Bottai ◽  
...  

ABSTRACT A reliable and low-cost method that enables rapid screening of the activity exerted by new antimicrobial agents on intracellularly growingMycobacterium avium has been developed. To this aim, a recombinant (lacZ) strain of M. aviumexpressing the Escherichia coli β-galactosidase gene was used to evaluate, in murine macrophages, the susceptibility of M. avium to common antimycobacterial agents. β-Galactosidase levels, measured in the presence of each of the antibiotics tested, were closely correlated with the number of CFU recovered from theM. avium lacZ strain-infected macrophages.


2001 ◽  
Vol 45 (10) ◽  
pp. 2958-2960 ◽  
Author(s):  
Pio Maria Furneri ◽  
Giancarlo Rappazzo ◽  
Maria Pia Musumarra ◽  
Patrizia Di Pietro ◽  
Lucrezia S. Catania ◽  
...  

ABSTRACT We describe two mutants of Mycoplasma hominis PG-21 which show resistance to 16-membered macrolides but susceptibility to lincosamides, obtained by in vitro exposure to increasing doses of josamycin. The 23S rRNA gene showed that each had a mutation (A2062G and A2062T) corresponding to nucleotide 2062 in Escherichia coli, which was associated with the acquired phenotype.


1998 ◽  
Vol 379 (8-9) ◽  
Author(s):  
Birgit Henrich ◽  
Grete Berns ◽  
Manuela Weinhold ◽  
Annette Kitzerow ◽  
Heiner Schaal ◽  
...  

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