Purification and biochemical characterization of a novel thermostable serine alkaline protease from Aeribacillus pallidus C10: a potential additive for detergents

Autor: Vildan Yildirim, Mustafa Ozkan Baltaci, Ilknur Ozgencli, Melda Sisecioglu, Ahmet Adiguzel, Gulsah Adiguzel
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Journal of Enzyme Inhibition and Medicinal Chemistry, Vol 32, Iss 1, Pp 468-477 (2017)
Druh dokumentu: article
ISSN: 1475-6366
1475-6374
14756366
DOI: 10.1080/14756366.2016.1261131
Popis: An extracellular thermostable alkaline serine protease enzyme from Aeribacillus pallidus C10 (GenBank No: KC333049), was purified 4.85 and 17. 32-fold with a yield of 26.9 and 19.56%, respectively, through DE52 anion exchange and Probond affinity chromatography. The molecular mass of the enzyme was determined through sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), with approximately 38.35 kDa. The enzyme exhibited optimum activity at pH 9 and at temperature 60 °C. It was determined that the enzyme had remained stable at the range of pH 7.0–10.0, and that it had preserved more than 80% of its activity at a broad temperature range (20–80 °C). The enzyme activity was found to retain more than 70% and 55% in the presence of organic solvents and commercial detergents, respectively. In addition, it was observed that the enzyme activity had increased in the presence of 5% SDS. KM and Vmax values were calculated as 0.197 mg/mL and 7.29 μmol.mL−1.min−1, respectively.
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