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Isolation of laccase gene from Bacillus subtilis and analysis of its physicochemical properties
- Source :
-
Gene . Jan2012, Vol. 491 Issue 1, p49-52. 4p. - Publication Year :
- 2012
-
Abstract
- Abstract: The present study reports the cloning and sequencing of lac2 from Bacillus subtilis. The gene is composed of 1542bp and encodes a 514-amino acid protein. The gene has 86% homology with a published laccase with GeneID 936023. The lac2 gene was deposited in GenBank as a new nucleotide sequence. This new sequence was cloned into the multiple cloning site of pPIC9K to generate pPIC9K-lac2, which was then transformed into Pichia pastoris GS115 via electroporation. The recombinant GS115 (pPIC9K-lac2) was grown initially in BMGY medium and transferred to BMMY to induce gene expression for 48h. The recombinant Lac2 protein shows laccase activity with α-naphthol and guaiacol as substrates. The optimal pH is between 3.2 and 4.7, and the optimal temperature is 25°C for enzyme reaction. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 03781119
- Volume :
- 491
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Gene
- Publication Type :
- Academic Journal
- Accession number :
- 67143741
- Full Text :
- https://doi.org/10.1016/j.gene.2011.09.006