| Title |
Structural and functional characterization of a novel lipolytic enzyme from a Brazilian Cerrado soil metagenomic library
|
|---|---|
| Published in |
Biotechnology Techniques, July 2018
|
| DOI | 10.1007/s10529-018-2598-0 |
| Pubmed ID | |
| Authors |
Paula Istvan, Amanda Araújo Souza, Aisel Valle Garay, Debora Farage Knupp dos Santos, Gideane Mendes de Oliveira, Renata Henrique Santana, Fabyano Alvares Cardoso Lopes, Sonia Maria de Freitas, João Alexandre Ribeiro Gonçalves Barbosa, Ricardo Henrique Krüger |
| Abstract |
To isolate putative lipase enzymes by screening a Cerrado soil metagenomic library with novel features. Of 6720 clones evaluated, Clone W (10,000 bp) presented lipolytic activity and four predicted coding sequences, one of them LipW. Characterization of a predicted esterase/lipase, LipW, showed 28% sequence identity with an arylesterase from Pseudomonas fluorescens (pdb|3HEA) from protein database (PDB). Phylogenetic analysis showed LipW clustered with family V lipases; however, LipW was clustered in different subclade belonged to family V, suggesting a different subgroup of family V. In addition, LipW presented a difference in family V GH motif, a glycine replaced by a serine in GH motif. Estimated molecular weight and stokes radius values of LipW were 29,338.67-29,411.98 Da and 2.58-2.83 nm, respectively. Optimal enzyme activity was observed at pH 9.0-9.5 and at 40 °C. Circular dichroism analysis estimated secondary structures percentages as approximately 45% α-helix and 15% β-sheet, consistent with the 3D structure predicted by homology. Our results demonstrate the isolation of novel family V lipolytic enzyme with biotechnological applications from a metagenomic library. |
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 2 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 2 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 28 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 28 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 5 | 18% |
| Student > Doctoral Student | 4 | 14% |
| Student > Bachelor | 3 | 11% |
| Other | 2 | 7% |
| Student > Master | 2 | 7% |
| Other | 5 | 18% |
| Unknown | 7 | 25% |
| Readers by discipline | Count | As % |
|---|---|---|
| Biochemistry, Genetics and Molecular Biology | 7 | 25% |
| Agricultural and Biological Sciences | 5 | 18% |
| Engineering | 2 | 7% |
| Computer Science | 2 | 7% |
| Environmental Science | 1 | 4% |
| Other | 0 | 0% |
| Unknown | 11 | 39% |
Attention Score in Context
This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 01 August 2018.
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#15,175,718
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#2,141
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#180,085
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Outputs of similar age from Biotechnology Techniques
#6
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