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Plasma membranes from neuronal perikarya (N), protoplasmic astrocytes (A) and oligodendrocyies (O) of rat brains were analysed with respect to their protein and glycoprotein contents and specificities. SDS-polyacrylamide gel electrophoresis revealed a total number of 23, 17, and 17 major proteins in N, A, and O respectively. Periodate-Schiff's staining(More)
A new, sensitive and convenient ELISA method has been developed for quantitation of tubulin using poly-1-lysine (PLL) coated multiwell microtiter plates. Binding of tubulin to untreated plastic surface of microtiter plates was extremely poor. Coating of wells with PLL enhanced the binding and facilitated quantitation by ELISA. Binding of tubulin was(More)
Fusion of myeloma (P3X63-Ag 8.653) cells with spleen cells from BALB/c mice immunized with human neuroblastoma (SK-N-SH) cells yielded a hybridoma clone, referred to as 3XB7, with a unique pattern of reactivity to malignant neuroectodermal tumors except gliomas of low-grade malignancy. Indirect immunofluorescence staining under different conditions and(More)
l-Triiodothyronine (T(3)) is shown to stimulate the biosynthesis of tubulin in oligodendrocytes isolated from rat brains at different stages of myelinogenesis. The hormone sensitivity appears around day 11, reaches a maximum at day 15 and disappears by day 25 after birth. Dose response studies show that the optimal stimulation of tubulin in the(More)
Three monoclonal antibodies (MAbs) specifically recognizing rat astrocyte cell surface proteins have been characterized and their antigen binding specificities determined. One of these MAbs has been employed to isolate a distinct subpopulation of astroglial cells using immunoaffinity chromatography. MAbs to rat astroglial cell surface proteins, generated by(More)
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