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Сравнительная характеристика глутамилэндопептидазы Bacillus pumilus, секретируемой рекомбинантным штаммом Bacillus subtilis на разных фазах роста

Сравнительная характеристика глутамилэндопептидазы Bacillus pumilus, секретируемой рекомбинантным штаммом Bacillus subtilis на разных фазах роста

Abstract

Подобран состав компонентов питательной среды для увеличения продукции глутамилэндопептидазы Bacillus pumilus, секретируемой рекомбинантным штаммом Bacillus subtilis. С помощью двухфакторных экспериментов установлены концентрации пептона и неорганического фосфата, позволяющие увеличить выход фермента на 20%. Получен гомогенный препарат белка, соответствующий вегетативной фазе роста бацилл и стадии споруляции. Изучено влияние реагентов на сульфгидрильные группы и дисульфидные связи фермента, соответствующего разным стадиям роста бацилл. Установлено, что уровень функциональной активности глутамилэндопептидазы определяется статусом дисульфидной связи в конформации белка.A combination of culture medium components has been selected to increase the production of

Bacillus pumilus glutamyl endopeptidase (GseBp) secreted by Bacillus subtilis recombinant strain. Concentrations of peptone and inorganic phosphate resulting in an increase in the enzyme yield by 20% have been established by two-factor experiments. A homogeneous protein preparation corresponding to vegetative and sporulation phases of bacilli has been obtained. The influence of the reagents on the sulfhydryl groups and disulfide bonds of the enzyme produced at different growth stages of bacilli has been studied. It has been determined that the level of functional activity of glutamyl endopeptidase depends on the status of the disulfide bond in a protein conformation.

Keywords

БАЦИЛЛЫ, ГЛУТАМИЛЭНДОПЕПТИДАЗА, ДИСУЛЬФИДНАЯ СВЯЗЬ, КОНФОРМАЦИЯ, ФАЗЫ РОСТА

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold