Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | Springer Nature Link |
|---|---|
| Author | Maester, Thaís Carvalho Pereira, Mariana Rangel Machado Sierra, E. G. Balan, Andrea Lemos, Eliana Gertrudes |
| Copyright Year | 2016 |
| Abstract | Metagenomic libraries from diverse environments have been extensive sources of many lipases and esterases; nevertheless, most of these enzymes remain biochemically uncharacterized. We previously built a metagenomic fosmid library from a microbial consortium specialized for diesel oil degradation and tested it for lipolytic activity. In the present study, we identified the PL14.H10 clone that was subcloned and sequenced, which enabled the identification of the EST3 protein. This enzyme exhibited 74 % amino acid identity with the uncharacterized alpha/beta hydrolase from Parvibaculum lavamentivorans [GenBank: WP012110575.1] and was classified into lipolytic enzyme family IV. Biochemical characterization revealed that EST3 presents high activity in a wide range of temperature with highest activity from 41 to 45 °C. Also, this thermostable esterase acts from mild acidic to alkaline conditions with an optimum pH of 6.0. The enzyme exhibited activity against p-nitrophenyl esters of different chain lengths and highest catalytic efficiency against p-nitrophenyl caprylate. The activity of the protein was increased in the presence of 0.5 mM of Mn+2, Li+, EDTA, and 1 % of CTAB and exhibited half of the activity in the presence of 10 % methanol and ethanol. Moreover, the homology model of EST3 was built and compared to other esterases, revealing a substrate channel that should fit a wide range of substrates. Taken together, the data presented in this work reveal the unique and interesting characteristics of EST3 that might be explored for further use in biotechnological applications. |
| Starting Page | 5815 |
| Ending Page | 5827 |
| Page Count | 13 |
| File Format | |
| ISSN | 01757598 |
| Journal | Applied Microbiology and Biotechnology |
| Volume Number | 100 |
| Issue Number | 13 |
| e-ISSN | 14320614 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2016-02-26 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | Subscribed |
| Subject Keyword | Lipase Esterase Family IV Microbial consortium pNP esters Microbiology Microbial Genetics and Genomics Biotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Applied Microbiology and Biotechnology Biotechnology |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|