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PMID:9243807
| Citation |
Soltys, BJ and Gupta, RS (1997) Cell surface localization of the 60 kDa heat shock chaperonin protein (hsp60) in mammalian cells. Cell Biol. Int. 21:315-20 |
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| Abstract |
To investigate whether the 60-kDa heat shock chaperonin protein (hsp60) is present on the surface of mammalian cells, we used immunogold labeling of intact cells and backscattered electron imaging to image gold particles. Chinese hamster ovary cells and the human leukemic CD4-positive T-cell line CEM-SS on glass coverslips were labeled using affinity-purified monoclonal and polyclonal antibodies specific for hsp60 and 30 nm gold markers. Cells were imaged using the scanning mode of the conventional transmission electron microscope. Backscattered electron imaging provided definitive identification of the gold markers while secondary electron imaging gave information on surface architecture. Labeling intensity was 250-800 gold particles per cell in Chinese hamster ovary cells and 600-2000 in CEM-SS human lymphoblasts. The finding of hsp60 on the cell surface of mammalian cells may signify chaperone involvement in surface functions. |
| Links |
PubMed Online version:10.1006/cbir.1997.0144 |
| Keywords |
Animals; Antigens, Surface/analysis; CD4-Positive T-Lymphocytes/chemistry; CD4-Positive T-Lymphocytes/cytology; CD4-Positive T-Lymphocytes/ultrastructure; CHO Cells/chemistry; CHO Cells/ultrastructure; Chaperonin 60/analysis; Cricetinae; Humans; Immunohistochemistry; Leukemia, T-Cell; Mammals; Microscopy, Immunoelectron; Tumor Cells, Cultured |
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Significance
Annotations
| Gene product | Qualifier | GO ID | GO term name | Evidence Code | with/from | Aspect | Notes | Status |
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