{"title":"藻酸盐介导的固定化菠萝蜜(Artocarpus heterophyllus)胶乳丝氨酸蛋白酶具有更好的催化特性","authors":"Suman Natta, Swathi Chintala, Deepak Kumar, Nandita Sahana, Somnath Mandal","doi":"10.1007/s13562-024-00905-0","DOIUrl":null,"url":null,"abstract":"<p>Serine proteases have been receiving special attention from the industrial point of view, due to their thermo-stable properties and activity over wide ranges of pH. In the present investigation, a serine protease (49.3 kDa) from jackfruit latex has been purified using chromatographic techniques. Fold purification of the serine protease in the final purification step was 92.41 with 24% yield. The protease is completely inhibited by PMSF, a serine protease-specific inhibitor at a minimal concentration (100 µM). The purified serine protease was immobilized with sodium alginate (2.5%) and calcium chloride (0.3 M) solution. The kinetic studies of immobilized enzyme showed stable activity up to pH 7, and can withstand temperatures up to 45 °C. The immobilization process improves the catalytic efficiency of the enzyme over purified soluble enzyme (for K<sub>cat</sub> 1.4 times and for K<sub>cat</sub>/K<sub>m</sub> 1.21 times). Our results depicted that alginate mediated immobilization of serine protease greatly improves the pH and temperature optima which broadens the scope of usage of the enzyme further.</p>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Alginate-mediated immobilization of jackfruit (Artocarpus heterophyllus) latex serine protease enzyme exhibits improved catalytic properties\",\"authors\":\"Suman Natta, Swathi Chintala, Deepak Kumar, Nandita Sahana, Somnath Mandal\",\"doi\":\"10.1007/s13562-024-00905-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Serine proteases have been receiving special attention from the industrial point of view, due to their thermo-stable properties and activity over wide ranges of pH. In the present investigation, a serine protease (49.3 kDa) from jackfruit latex has been purified using chromatographic techniques. Fold purification of the serine protease in the final purification step was 92.41 with 24% yield. The protease is completely inhibited by PMSF, a serine protease-specific inhibitor at a minimal concentration (100 µM). The purified serine protease was immobilized with sodium alginate (2.5%) and calcium chloride (0.3 M) solution. The kinetic studies of immobilized enzyme showed stable activity up to pH 7, and can withstand temperatures up to 45 °C. The immobilization process improves the catalytic efficiency of the enzyme over purified soluble enzyme (for K<sub>cat</sub> 1.4 times and for K<sub>cat</sub>/K<sub>m</sub> 1.21 times). Our results depicted that alginate mediated immobilization of serine protease greatly improves the pH and temperature optima which broadens the scope of usage of the enzyme further.</p>\",\"PeriodicalId\":1,\"journal\":{\"name\":\"Accounts of Chemical Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":16.4000,\"publicationDate\":\"2024-07-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of Chemical Research\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1007/s13562-024-00905-0\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1007/s13562-024-00905-0","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Serine proteases have been receiving special attention from the industrial point of view, due to their thermo-stable properties and activity over wide ranges of pH. In the present investigation, a serine protease (49.3 kDa) from jackfruit latex has been purified using chromatographic techniques. Fold purification of the serine protease in the final purification step was 92.41 with 24% yield. The protease is completely inhibited by PMSF, a serine protease-specific inhibitor at a minimal concentration (100 µM). The purified serine protease was immobilized with sodium alginate (2.5%) and calcium chloride (0.3 M) solution. The kinetic studies of immobilized enzyme showed stable activity up to pH 7, and can withstand temperatures up to 45 °C. The immobilization process improves the catalytic efficiency of the enzyme over purified soluble enzyme (for Kcat 1.4 times and for Kcat/Km 1.21 times). Our results depicted that alginate mediated immobilization of serine protease greatly improves the pH and temperature optima which broadens the scope of usage of the enzyme further.
期刊介绍:
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.