[Preparation and characterization of a new mutant homolog of chemotaxis protein CheY from anaerobic hyperthermophilic microorganism Thermotoga naphthophila]. / Poluchenie i kharakteristika novogo mutantnogo gomologa khemotaksisnogo belka CheY iz gipertermofil'nogo anaérobnogo mikroorganizma Thermotoga naphthophila.
Biomed Khim
; 65(1): 41-50, 2019 Jan.
Article
in Ru
| MEDLINE
| ID: mdl-30816096
ABSTRACT
Using genetic engineering methods the expression vectors structures have been designed to produce recombinant proteins TnaCheY and Tna CheY-mut, the homologues of the chemotaxis protein CheY from the hyperthermophilic organism Thermotoga naphthophila in Escherichia coli BL21(DE3) cells. The cultivation conditions of transformed strains were optimized. The influence of episomal expression of the heterologous chemotaxis protein CheY on growth kinetics parameters of the culture of mesophilic bacteria E. coli was studied. The optimal purification flowchart of the obtained proteins using thermolysis is proposed. Using the E. coli BL21(DE3) laboratory strain as an example, the possibility of employment the episomal expression of such proteins to control the cultivation and production time of pharmaceutically and industrially valuable metabolites due to the impact on some stages of the bacterial chemotaxis is experimentally proved.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Bacterial Proteins
/
Chemotaxis
/
Gram-Negative Anaerobic Straight, Curved, and Helical Rods
/
Methyl-Accepting Chemotaxis Proteins
Language:
Ru
Journal:
Biomed Khim
Year:
2019
Type:
Article
Affiliation country:
RUSSIA