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 | Englesberg, E. Jones, M. Gupta, R. S. |
| Description | Author Affiliation: Jones M ( University of California, Santa Barbara 93106.); |
| Abstract | Mutants of CHO-K1 cells with varied levels of A system activity, probably the result of increases in absolute amount of the A system transporter, have corresponding increases in levels of peptides banding at 62-66 and 29 kDa. Mutant alar4-H3.9, showing the highest increase of A system activity and of 62- to 66- and 29-kDa peptides, was selected for this study. The N terminus 16-amino acid sequence of the 62- to 66-kDa peptide(s) of this mutant showed between 80% and 100% identity with the mammalian mitochondrial 60-kDa heat shock protein P1 (hsp60). Two-dimensional gel electrophoresis of the 62- to 66-kDa band showed two major, a minor, and several smaller spots (of same mass but different pI values) for both wild type (WT) and mutant, with the two major spots being of greater density in the mutant. Immunoblots with antibody to P1 identified the two major and minor peptides as P1 related. Two-dimensional gels of whole cell extracts of the WT and alar4-H3.9 confirmed these findings and indicated that the two major bands of the mutant were 2.4 times as abundant as that found for the WT. A plasma membrane fraction of the mutant, exhibiting 4.8 times more A system activity than the WT, contained 3.6 times as much P1 as the WT. Immunoblots with antibodies to P1, mitochondrial malate dehydrogenase, and to the mitochondrial F1/F0-ATPase demonstrated that the increased amount of P1 observed in the mutant was not the result of increases in amount of mitochondrial protein. Northern blot analysis demonstrated that the mutant had 2.5 times as much mRNA for P1 as the WT. The close analogy with the relationship between A system and Na+,K(+)-ATPase suggests that there is a coordinate regulation of the A system of amino acid transport, Na+,K(+)-ATPase, and P1 protein, probably as a result of mutation in a shared regulatory element. The possible role of P1 in A system function is discussed. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 3 |
| Volume Number | 91 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1994-03-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Amino Acids Metabolism Heat-Shock Proteins Animals Biological Transport, Active Genetics CHO Cells Chaperonin 60 Cricetinae Mutation RNA, Messenger Sodium-Potassium-Exchanging ATPase Up-Regulation Comparative Study Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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...
|