Novoselova M.V. 1
Linnik A.I. 1
Dyshlyuk L.S. 1
Matskova L.V. 2
1 Kemerovo Technological Institute of Food Industry
2 Karolinska Institute
The analysis of known systems of production recombinant lactoferrin is carried out: microscopic mushrooms, plants (tobacco, potatoes, rice), transgene animals (cows, goats), microorganisms. Merits and demerits of known genetically engineered ways of obtaining human lactoferrin are revealed. The main demerits of existing methods are labor input of process, complexity of cleaning, decrease in biological activity of protein, a low exit of a target product. E. сoli strain as a perspective producer of recombinant human lactoferrin is chosen. The scheme of cloning of ltf gene is offered. Own researches on obtaining recombinant human lactoferrin are conducted. The expression of lactoferrin is proved at all used types of secretion. Optimum parameters of cultivation of recombinant strain E. сoli, allowing to obtain the maximum exit of protein are chosen.