Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | Springer Nature Link |
|---|---|
| Author | Hsu, Fong Fu |
| Copyright Year | 2016 |
| Abstract | Hydroxyphthioceranoic (HPA) and phthioceranoic (PA) acids are polymethylated long chain fatty acids with and without a hydroxyl group attached to the carbon next to the terminal methyl-branched carbon distal to the carboxylic end of the long-chain fatty acid, respectively. They are the major components of the sulfolipids found in the cell wall of Mycobacterium tuberculosis (M. tuberculosis) strain H37Rv. In this report, I describe CID linear ion-trap MS$^{n}$ mass spectrometric approaches combined with charge-reverse derivatization strategy toward characterization of these complex lipids, which were released from sulfolipids by alkaline hydrolysis and sequentially derivatized to the N-(4-aminomethylphenyl) pyridinium (AMPP) derivatives. This method affords complete characterization of HPA and PA, including the location of the hydroxyl group and the multiple methyl side chains. The study also led to the notion that the hydroxyphthioceranoic acid in sulfolipid consists of two (for hC$_{24}$) to 12 (for hC$_{52}$) methyl branches, and among them 2,4,6,8,10,12,14,16-octamethyl-17-hydroxydotriacontanoic acid (hC$_{40}$) is the most prominent, while phthioceranoic acids are the minor constituents. These results confirm our previous findings that sulfolipid II, a family of homologous 2-stearoyl(palmitoyl)-3,6,6′-tris(hydroxyphthioceranoy1)-trehalose 2′-sulfates is the predominant species, and sulfolipid I, a family of homologous 2-stearoyl(palmitoyl)-3-phthioceranoyl-6,6′-bis(hydroxyphthioceranoy1)-trehalose 2′-sulfates is the minor species in the cell wall of M. tuberculosis. Graphical Abstract ᅟ |
| Starting Page | 622 |
| Ending Page | 632 |
| Page Count | 11 |
| File Format | |
| ISSN | 10440305 |
| Journal | Journal of The American Society for Mass Spectrometry |
| Volume Number | 27 |
| Issue Number | 4 |
| e-ISSN | 18791123 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2016-01-04 |
| Publisher Institution | The American Society for Mass Spectrometry |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | HCD Charge-remote fragmentation Microbial lipids Lipidomics Linear ion-trap Charge reversed derivatization Mycobacterium tuberculosis Analytical Chemistry Biotechnology Organic Chemistry Proteomics Bioinformatics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Spectroscopy Structural Biology |
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...
|