Electron microscope study on the occurrence of electron-dense deposits at the cell membrane of chicken erythrocytes.
Electron-dense deposits were found along the inner side of the cell membrane of chicken erythrocytes when fixed in a CaCl2-containing glutaraldehyde solution. Osteoblasts and osteoclasts were studied in an attempt to determine whether the deposits are related to calcium metabolism. No electron-dense deposits adjacent to the cell membrane were found in either these cells or in rat erythrocytes. Therefore, it is assumed that the deposits are not calcium-binding protein necessary for the cellular calcium uptake.
D000818:Animals; D002118:Calcium / Q000378:metabolism; D002462:Cell Membrane / Q000378:metabolism*; D002642:Chick Embryo; D002645:Chickens / Q000097:blood*; D003584:Cytological Techniques; D004912:Erythrocytes / Q000378:metabolism / Q000648:ultrastructure*; D006651:Histocytochemistry; D010006:Osteoblasts / Q000648:ultrastructure; D010010:Osteoclasts / Q000648:ultrastructure; D011485:Protein Binding; D051381:Rats; D013045:Species Specificity
D002118:Calcium