High level expression of thermostable lipase from Geobacillus sp. strain T1
A thermostable extracellular lipase of Geobacillus sp. strain T1 was cloned in a prokaryotic system. Sequence analysis revealed an open reading frame of 1,251 bp in length which codes for a polypeptide of 416 amino acid residues. The polypeptide was composed of a signal peptide (28 amino acids) and...
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| Format: | Article |
| Language: | English |
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Japan Society for Bioscience, Biotechnology, and Agrochemistry
2004
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| Online Access: | http://psasir.upm.edu.my/id/eprint/5635/ http://psasir.upm.edu.my/id/eprint/5635/1/High%20Level%20Expression%20of%20Thermostable%20Lipase%20from%20Geobacillus%20sp.pdf |
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| author | Leow, Thean Chor Raja Abdul Rahman, Raja Noor Zaliha Basri, Mahiran Salleh, Abu Bakar |
| author_facet | Leow, Thean Chor Raja Abdul Rahman, Raja Noor Zaliha Basri, Mahiran Salleh, Abu Bakar |
| author_sort | Leow, Thean Chor |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | A thermostable extracellular lipase of Geobacillus sp. strain T1 was cloned in a prokaryotic system. Sequence analysis revealed an open reading frame of 1,251 bp in length which codes for a polypeptide of 416 amino acid residues. The polypeptide was composed of a signal peptide (28 amino acids) and a mature protein of 388 amino acids. Instead of Gly, Ala was substituted as the first residue of the conserved pentapeptide Gly-X-Ser-X-Gly. Successful gene expression was obtained with pBAD, pRSET, pET, and pGEX as under the control of araBAD, T7, T7 lac, and tac promoters, respectively. Among them, pGEX had a specific activity of 30.19 Umg−1 which corresponds to 2927.15 Ug−1 of wet cells after optimization. The recombinant lipase had an optimum temperature and pH of 65°C and pH 9, respectively. It was stable up to 65°C at pH 7 and active over a wide pH range (pH 6–11). This study presents a rapid cloning and overexpression, aimed at improving the enzyme yield for successful industrial application. |
| first_indexed | 2025-11-15T07:22:50Z |
| format | Article |
| id | upm-5635 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T07:22:50Z |
| publishDate | 2004 |
| publisher | Japan Society for Bioscience, Biotechnology, and Agrochemistry |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-56352016-09-02T00:44:27Z http://psasir.upm.edu.my/id/eprint/5635/ High level expression of thermostable lipase from Geobacillus sp. strain T1 Leow, Thean Chor Raja Abdul Rahman, Raja Noor Zaliha Basri, Mahiran Salleh, Abu Bakar A thermostable extracellular lipase of Geobacillus sp. strain T1 was cloned in a prokaryotic system. Sequence analysis revealed an open reading frame of 1,251 bp in length which codes for a polypeptide of 416 amino acid residues. The polypeptide was composed of a signal peptide (28 amino acids) and a mature protein of 388 amino acids. Instead of Gly, Ala was substituted as the first residue of the conserved pentapeptide Gly-X-Ser-X-Gly. Successful gene expression was obtained with pBAD, pRSET, pET, and pGEX as under the control of araBAD, T7, T7 lac, and tac promoters, respectively. Among them, pGEX had a specific activity of 30.19 Umg−1 which corresponds to 2927.15 Ug−1 of wet cells after optimization. The recombinant lipase had an optimum temperature and pH of 65°C and pH 9, respectively. It was stable up to 65°C at pH 7 and active over a wide pH range (pH 6–11). This study presents a rapid cloning and overexpression, aimed at improving the enzyme yield for successful industrial application. Japan Society for Bioscience, Biotechnology, and Agrochemistry 2004 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/5635/1/High%20Level%20Expression%20of%20Thermostable%20Lipase%20from%20Geobacillus%20sp.pdf Leow, Thean Chor and Raja Abdul Rahman, Raja Noor Zaliha and Basri, Mahiran and Salleh, Abu Bakar (2004) High level expression of thermostable lipase from Geobacillus sp. strain T1. Bioscience, Biotechnology, and Biochemistry, 68 (1). pp. 96-103. ISSN 0916-8451; ESSN: 1347-6947 https://www.jstage.jst.go.jp/article/bbb/68/1/68_1_96/_article 10.1271/bbb.68.96 |
| spellingShingle | Leow, Thean Chor Raja Abdul Rahman, Raja Noor Zaliha Basri, Mahiran Salleh, Abu Bakar High level expression of thermostable lipase from Geobacillus sp. strain T1 |
| title | High level expression of thermostable lipase from Geobacillus sp. strain T1
|
| title_full | High level expression of thermostable lipase from Geobacillus sp. strain T1
|
| title_fullStr | High level expression of thermostable lipase from Geobacillus sp. strain T1
|
| title_full_unstemmed | High level expression of thermostable lipase from Geobacillus sp. strain T1
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| title_short | High level expression of thermostable lipase from Geobacillus sp. strain T1
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| title_sort | high level expression of thermostable lipase from geobacillus sp. strain t1 |
| url | http://psasir.upm.edu.my/id/eprint/5635/ http://psasir.upm.edu.my/id/eprint/5635/ http://psasir.upm.edu.my/id/eprint/5635/ http://psasir.upm.edu.my/id/eprint/5635/1/High%20Level%20Expression%20of%20Thermostable%20Lipase%20from%20Geobacillus%20sp.pdf |