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Mayssaa E Abdalah
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Medicine & Pharmacology

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Cleavage of Mucin and Salivary Agglutinin by Partiallypurified Protease from Native Strain of Streptococcus Mutansan67 Mayssaa E Abdalah
Journal of Global Pharma Technology Volume 10 Issue 06: (2018) June 2018
Publisher : Journal of Global Pharma Technology

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Abstract

Streptococcus mutansAN67 is olatecommensal species of the human oral cavity and their role as a major causative agent associated with dental plaque.S.mutansAN67 was selected as the most active isolate for protease production. Separation and purification of Streptococcusmutans AN67 proteolytic enzyme was done by 0-70% (w:v) saturated ammonium sulfate and ion-exchange chromatography on the DEAE-cellulose column. Partiallypurified protease by ion-exchange chromatography was given an activity of 24 Unit/ml, protein concentration of 0.038 mg/ml, specific activity of 631.5 Unit/mg with purification fold of 2.8and a yield of42 %. Determination of molecular weight for partially purified protease from S. mutans AN67 was elucidated by the use of gel filtration on Sepharose-6B column, which determined as 134000Da.Partially purified protease was tested for cleavage of mucin and agglutinin proteins by gel filtration chromatography on Sepharose-6B column. Partially purified protease was able to cleave mucin protein substrate into three fractions; also it’s cleaving agglutinin protein into three fractions.Keywords: Streptococcusmutans, Protease, Mucin, Agglutinin.
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