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Studies on the Recombinant Production in E. coli and Characterization of Pharmaceutically Important Thermostable L-Asparaginase from Geobacillus thermodenitrificans

Studies on the Recombinant Production in E. coli and Characterization of Pharmaceutically Important Thermostable L-Asparaginase from Geobacillus thermodenitrificans

Muhammad Shahid Nadeem*, Maryam A. Al-Ghamdi and Jalaluddin Azam Khan

Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia

*      Corresponding author: mhalim@kau.edu.sa

 

 

Fig. 1.

SDS-PAGE image showing partially purified enzyme (Lane P), gene expressed in E. coli (Lane E), negative control (Lane C) and protein marker (Lane M).

Fig. 2.

Kinetic properties of recombinant asparginase. A, effect of substrate concentration on the enzyme activity indicating KM value of 5.9mM for L-Asparagine; B, effect of temperature on the enzyme activity; C, effect of pH, on the activity of enzyme.

Fig. 3.

ASP-GT monomer built by SWISS server, depicted in rainbow cartoons highlighting the secondary structure with different colours.

Fig. 4.

Molecular docking photograph indicating the binding site residues of L-asparaginase with its substrate (L-asparagine).

Pakistan Journal of Zoology

December

Vol. 51, Iss. 6, Pages 1999-2399

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