Please use this identifier to cite or link to this item: http://localhost:8080/xmlui/handle/123456789/1253
Title: Molecular cloning and homology modelling of a subtilisin-like serine protease from the marine fungus, Engyodontium album BTMFS10
Authors: Jasmin, C
Sreeja, C
Rajeev K Sukumaran
Elyas, K K
Sarita, G. B
Chandrasekaran, M
Keywords: Engyodontium album
Alkaline serine protease
Subtilases
Homology modelling
Cuticle-degrading-protease
Solid-state fermentation
Proteinase-K
Entomopathogenic fungus
Alkaline protease
Saccharomyces-cerevisiae
3-Dimensional structure
Metarhizium-anisopliae
Chloromethyl ketone
Issue Date: 2010
Publisher: Springer
Citation: World Journal of Microbiology & Biotechnology 26(7):1269-1279;Jul 2010
Abstract: An alkaline protease gene (Eap) was isolated for the first time from a marine fungus, Engyodontium album. Eap consists of an open reading frame of 1,161 bp encoding a prepropeptide consisting of 387 amino acids with a calculated molecular mass of 40.923 kDa. Homology comparison of the deduced amino acid sequence of Eap with other known proteins indicated that Eap encode an extracellular protease that belongs to the subtilase family of serine protease (Family S8). A comparative homology model of the Engyodontium album protease (EAP) was developed using the crystal structure of proteinase K. The model revealed that EAP has broad substrate specificity similar to Proteinase K with preference for bulky hydrophobic residues at P1 and P4. Also, EAP is suggested to have two disulfide bonds and more than two Ca(2+) binding sites in its 3D structure; both of which are assumed to contribute to the thermostable nature of the protein.
URI: http://ir.niist.res.in:8080/jspui/handle/123456789/1253
ISSN: 0959-3993
Appears in Collections:2010

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