Nattokinase is a potent fibrinolytic enzyme with the potential for fighting cardiovascular diseases. In this study, Bacillus subtilis natto were immobilized in the alginate – chitosan complex for fermentation of nattokinase enzyme. Six factors affecting the efficiency of immobilization cells were screened by Plackett – Burman design including: concentration of alginate, concentration of chitosa...

BACKGROUND Nattokinases/Subtilisins (EC 3.4.21.62) belong to the second large family of serine proteases, which gain significant attention and play important role in many biotechnology processes. Thus, a number of nattokinases/subtilisins from various Bacillus species, especially from B. subtilis strains, extensively have been investigated to understand their biochemical and physical properties...

Welcome to the first issue of our 10 year of publication – amazing how time flies!! Afibbers who subscribe to this newsletter or participate in the activities on the Bulletin Board and in the Conference Room have long been aware of the benefits of supplementing with nattokinase to prevent ischemic stroke. Now Chinese researchers provide convincing proof that nattokinase does indeed prevent the ...

s: It was found that when dipicolinic acid is added to the culture solution of Bacillus subtilis natto, the area of fibrin dissolved by nattokinase (standard fibrin plate) and the amidase activity of nattokinase against Suc-Ala-Ala-Pro-PhepNA increased. For example, when manufacturing natto using steamed soybeans, the addition of 10-64 mM of dipicolinic acid increases amidase activity by more t...

Nattokinase or subtilisin NAT (EC 3.4.21.62) is one of the most remarkable enzymes produced by Bacillus subtilis sp. Natto, which posses direct fibrinolytic activity. The aim of this study is in silico analysis of Nattokinase structure and function. The three-dimensional structure of serine protease Nattokinase from Bacillus subtilis sp. natto was determined using homology modeling performed by...

Nattokinase, a serine proteinase from Bacillus subtilis, is considered to be one of the most active functional ingredients found in natto. In this study, we hypothesized that nattokinase could reduce certain factors of blood clotting and lipids that are associated with an increase risk for cardiovascular disease (CVD). Thus, an open-label, self-controlled clinical trial was conducted on subject...

When heated to a temperature of 70 degrees C or higher, the strong fibrinolytic activity of nattokinase in a solution was deactivated. Similar results were observed in the case of using Suc-Ala-Ala-Pro-Phe-pNA and H-D-Val-Leu-Lys-pNA, which are synthetic substrates of nattokinase. In the current study, tests were conducted on the indirect fibrinolytic effects of the substances containing nattok...

In this review paper, an emphasis is made to focus on the history, source, structure, mode of action, and application Nattokinase. The reveals that Nattokinase can act as a potent thrombolytic agent compared other agents which are commercially available. Studies NK have also be proved it useful for dissolving blood clots by converting plasminogen plasmin, further fibrin clots. been isolated fro...

Subtilisin propeptide functions as an intramolecular chaperone that guides precursor folding. Nattokinase, a member of subtilisin family, is synthesized as a precursor consisting of a signal peptide, a propeptide, and a subtilisin domain, and the mechanism of its folding remains to be understood. In this study, the essential residues of nattokinase propeptide which contribute to precursor foldi...

Nattokinase is a potent fibrinolytic enzyme which was first found in a traditional Japanese soybean food. Two Nattokinase genes were cloned using chromosomal DNA from Bacillus subtilis (Ehrenberg 1835) Cohn 1872. Recombinant Natto-1.3 kb (GenBank accession number KF734090) and Natto-1.1 kb were expressed using a pQE-30 expression vector, and their fibrinolytic activities were studied. Natto-1.3...