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Title: Thermostable chitinase II from Thermomyces lanuginosus SSBP : Cloning, structure prediction and molecular dynamics simulations
Authors: Khan, Faez Iqbal 
Govender, Algasan 
Permaul, Kugen 
Singh, Suren 
Bisetty, Krishna 
Keywords: Chitin;TIM-barrel;MD simulations;Stability;Molecular docking
Issue Date: 8-Apr-2015
Publisher: Elsevier
Source: Khan, F. I. et al. 2015. Thermostable chitinase II from thermomyces lanuginosus SSBP: cloning, structure prediction and molecular dynamics simulations. Journal of Theoretical Biology, 374: 107-114.
Journal: Journal of theoretical biology 
Thermomyces lanuginosus is a thermophilic fungus that produces large number of industrially-significant enzymes owing to their inherent stability at high temperatures and wide range of pH optima, including thermostable chitinases that have not been fully characterized. Here, we report cloning, characterization and structure prediction of a gene encoding thermostable chitinase II. Sequence analysis revealed that chitinase II gene encodes a 343 amino acid protein of molecular weight 36.65 kDa. Our study reports that chitinase II exhibits a well-defined TIM-barrel topology with an eight-stranded α/β domain. Structural analysis and molecular docking studies suggested that Glu176 is essential for enzyme activity. Folding studies of chitinase II using molecular dynamics simulations clearly demonstrated that the stability of the protein was evenly distributed at 350 K.
ISSN: 0022-5193
Appears in Collections:Research Publications (Applied Sciences)

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