Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Shai, Yechiel Ghosh, Anirban Bera, Swapna Bhunia, Anirban Mangoni, Maria Luisa |
| Description | Author Affiliation: Ghosh A ( Department of Biophysics, Bose Institute, P-1/12, CIT Scheme VII (M), Kolkata 700054, India.); Bera S ( Department of Biophysics, Bose Institute, P-1/12, CIT Scheme VII (M), Kolkata 700054, India.); Shai Y ( Department of Biological Chemistry, The Weizmann Institute of Science, 76100 Rehovot, Israel.); Mangoni ML ( Instituto Pasteur-Fondazione Cenci Bolognetti, Department of Biochemical Sciences, Sapienza University of Rome, Via degli Apuli 9, 00185 Rome, Italy.); Bhunia A ( Department of Biophysics, Bose Institute, P-1/12, CIT Scheme VII (M), Kolkata 700054, India. Electronic address: anirbanbhunia@gmail.com.) |
| Abstract | The frog skin-derived antimicrobial peptide $esculentin-1a(1–21)NH_{2}$ [Esc(1–21)], and its diastereomer Esc(1–21)-1c (containing two D-amino acids at positions 14 and 17), have been recently found to neutralize the toxic effect of Pseudomonas aeruginosa lipopolysaccharide (LPS), although to different extents. Here, we studied the three-dimensional structure of both peptides in complex with P. aeruginosa LPS, by transferred nuclear Overhauser effect spectroscopy. Lack of NOE peaks revealed that both the peptides adopted a random coil structure in aqueous solution. However, Esc(1–21) adopted an amphipathic helical conformation in LPS micelles with 5 basic Lys residues forming a hydrophilic cluster. In comparison, the diastereomer maintained an alpha helical conformation only at the N-terminal region, whereas the C-terminal portion was quite flexible. Isothermal titration calorimetry (ITC) revealed that the interaction of Esc(1–21) with LPS is an exothermic process associated with a dissociation constant of ~ 4 μM. In contrast, Esc(1–21)-1c had almost 8 times weaker binding affinity to LPS micelles. Moreover, STD NMR data supported by docking analysis have identified those amino acid residues responsible for the peptide's binding to LPS micelles. |
| ISSN | 00063002 |
| Journal | Biochimica et Biophysica Acta (BBA) - Reviews on Cancer |
| Issue Number | 4 |
| Volume Number | 1858 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-04-01 |
| Publisher Place | Netherlands |
| Access Restriction | Open |
| Subject Keyword | Amphibian Proteins Chemistry Antimicrobial Cationic Peptides Lipopolysaccharides Peptides Pseudomonas Aeruginosa Anti-Infective Agents Hydrophobic And Hydrophilic Interactions Micelles Molecular Docking Simulation Nuclear Magnetic Resonance, Biomolecular Protein Binding Protein Structure, Secondary Research Support, Non-U.S. Gov't Biochemistry |
| Content Type | Text |
| Resource Type | Article |
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...
|