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Magalhães SS, Alves L, Sebastião M, Medronho B, Almeida ZL, Faria TQ, Brito RMM, Moreno MJ, Antunes FE. Effect of ethyleneoxide groups of anionic surfactants on lipase activity. Biotechnol Prog 2016; 32:1276-1282. [PMID: 27253632 DOI: 10.1002/btpr.2310] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Revised: 04/22/2016] [Indexed: 11/08/2022]
Abstract
The use of enzymes in laundry and dish detergent products is growing. Such tendency implies dedicated studies to understand surfactant-enzyme interactions. The interactions between surfactants and enzymes and their impact on the catalytic efficiency represent a central problem and were here evaluated using circular dichroism, dynamic light scattering, and enzyme activity determinations. This work focuses on this key issue by evaluating the role of the ethyleneoxide (EO) groups of anionic surfactants on the structure and activity of a commercial lipase, and by focusing on the protein/surfactant interactions at a molecular level. The conformational changes and enzymatic activity of the protein were evaluated in the presence of sodium dodecyl sulfate (SDS also denoted as SLE0 S) and of sodium lauryl ether sulfate with two EO units (SLE2 S). The results strongly suggest that the presence of EO units in the surfactant polar headgroup determines the stability and the activity of the enzyme. While SDS promotes enzyme denaturation and consequent loss of activity, SLE2 S preserves the enzyme structure and activity. The data further highlights that the electrostatic interactions among the protein groups are changed by the presence of the adsorbed anionic surfactants being such absorption mainly driven by hydrophobic interactions. © 2016 American Institute of Chemical Engineers Biotechnol. Prog., 32:1276-1282, 2016.
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Affiliation(s)
- Solange S Magalhães
- Coimbra Chemistry Centre, Dept. of Chemistry, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal.,Mistolin Portugal, Zona Industrial De Vagos, Lote 58, Vagos, 3844-909, Portugal
| | - Luís Alves
- Coimbra Chemistry Centre, Dept. of Chemistry, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal.
| | - Marco Sebastião
- Coimbra Chemistry Centre, Dept. of Chemistry, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal.,Mistolin Portugal, Zona Industrial De Vagos, Lote 58, Vagos, 3844-909, Portugal
| | - Bruno Medronho
- Faculty of Sciences and Technology (MEDITBIO), University of Algarve, Campus De Gambelas, Ed. 8, Faro, 8005-139, Portugal
| | - Zaida L Almeida
- Coimbra Chemistry Centre, Dept. of Chemistry, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal
| | - Tiago Q Faria
- Coimbra Chemistry Centre, Dept. of Chemistry, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal
| | - Rui M M Brito
- Coimbra Chemistry Centre, Dept. of Chemistry, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal
| | - Maria J Moreno
- Coimbra Chemistry Centre, Dept. of Chemistry, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal
| | - Filipe E Antunes
- Coimbra Chemistry Centre, Dept. of Chemistry, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal.
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Shi B, Zeng L, Song H, Shi Q, Wu S. Cloning and expression of Aspergillus tamarii FS132 lipase gene in Pichia pastoris. Int J Mol Sci 2010; 11:2373-82. [PMID: 20640158 PMCID: PMC2904922 DOI: 10.3390/ijms11062373] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2010] [Revised: 05/10/2010] [Accepted: 05/10/2010] [Indexed: 11/16/2022] Open
Abstract
A lipase gene (atl) was cloned from Aspergillus tamarii FS132 for the first time. The gene was found to have an open reading frame of 1024 base pairs (bp), and the coding region of the gene contained two introns (51 bp and 52 bp). Multi-alignment analysis of the deduced amino acid sequence indicated high homology between the enzyme and mono-and diacylglycerol lipases from fungi Aspergillus. The recombinant lipase was expressed in Pichia pastoris GS115 cells. The recombinant lipase was found to have a molecular mass of 36.7 kDa, and it exhibited lipase activity of 20 U/mL in culture supernatant when tributyrin was used as the substrate.
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Affiliation(s)
- Bihong Shi
- College of Life Sciences, Fujian Normal University, The University Town, Min-hou, Fuzhou 350108, China; E-Mails: (L.Z.); (H.S.)
- Engineering Research Center of Industrial Microbiology, Ministry of Education, Fujian Normal University, Fuzhou 350108, China; E-Mails: (Q.S.); (S.W.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +86-591-228-682-20; Fax: +86-591-838-577-75
| | - Liqing Zeng
- College of Life Sciences, Fujian Normal University, The University Town, Min-hou, Fuzhou 350108, China; E-Mails: (L.Z.); (H.S.)
| | - Haolei Song
- College of Life Sciences, Fujian Normal University, The University Town, Min-hou, Fuzhou 350108, China; E-Mails: (L.Z.); (H.S.)
| | - Qiaoqin Shi
- Engineering Research Center of Industrial Microbiology, Ministry of Education, Fujian Normal University, Fuzhou 350108, China; E-Mails: (Q.S.); (S.W.)
| | - Songgang Wu
- Engineering Research Center of Industrial Microbiology, Ministry of Education, Fujian Normal University, Fuzhou 350108, China; E-Mails: (Q.S.); (S.W.)
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Ghorbel S, Souissi N, Triki-Ellouz Y, Dufoss� L, Gu�rard F, Nasri M. Preparation and testing of Sardinella protein hydrolysates as nitrogen source for extracellular lipase production by Rhizopus oryzae. World J Microbiol Biotechnol 2005. [DOI: 10.1007/s11274-004-1556-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Wu M, Qian Z, Jiang P, Min T, Sun C, Huang W. Cloning of an alkaline lipase gene from Penicillium cyclopium and its expression in Escherichia coli. Lipids 2003; 38:191-9. [PMID: 12784858 DOI: 10.1007/s11745-003-1051-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The gene encoding an alkaline lipase of Penicillium cyclopium PG37 was cloned with four steps of PCR amplification based on different principles. The cloned gene was 1,480 nucleotides in length, consisted of 94 bp of promoter region, and had 6 exons and 5 short introns ranging from 50 to 70 nucleotides. The open reading frame encoded a protein of 285 amino acid residues consisting of a 27-AA signal peptide and a 258-AA mature peptide, with a conserved motif of Gly-X-Ser-X-Gly shared by all types of alkaline lipases. However, this protein had a low homology with lipases of P. camembertii (22.9%), Humicola lanuginosa (25.6%), and Rhizomucor miehei (22.3%) at the amino acid level. The mature peptide-encoding cDNA was cloned and expressed in Escherichia coli on pET-30a for confirmation. A distinct band with a M.W. of 33 kDa was detected on SDS-PAGE. Results of a Western blot analysis and an enzyme activity assay verified the recombinant 33-kDa protein as an alkaline lipase. Its catalytic properties were not changed when compared with its natural counterpart.
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Affiliation(s)
- Minchen Wu
- Medical Department, Southern Yangtze University, Wuxi 214063, Jiangsu, PR China
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Khan MA. Chemical composition and medicinal properties of Nigella sativa Linn. Inflammopharmacology 1999; 7:15-35. [PMID: 17657444 DOI: 10.1007/s10787-999-0023-y] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/1998] [Revised: 11/20/1998] [Accepted: 12/02/1998] [Indexed: 11/30/2022]
Abstract
The black cumin or Nigella sativa L. seeds have many acclaimed medicinal properties such as bronchodilatory, hypotensive, antibacterial, antifungal, analgesic, anti-inflammatory and immunopotentiating and are universally accepted as a panacea. This review article has surveyed the relevant literature on Nigella sativa from 1960-1998 and examines the scientific evidence for these medicinal claims and highlights areas in need of research.
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Affiliation(s)
- M A Khan
- Division of Chemistry, School of Science, Sheffield Hallam University, Sheffield, UK. M.A.Khan @ shu.ac.uk
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