ArticleThe Biochemical journal1989
Indirect immunofluorescence localization of beta-adrenergic receptors and G-proteins in human A431 cells.
Article in The Biochemical journal, 1989. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 46 citations in OpenAlex.
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- Influence of gamma subunit prenylation on association of guanine nucleotide-binding regulatory proteins with membranes.Molecular biology of the cell · 1992Article
- Octyl glucoside extracts GTP-binding regulatory proteins from rat brain "synaptoneurosomes" as large, polydisperse structures devoid of beta gamma complexes and sensitive to disaggregation by guanine nucleotides.Proceedings of the National Academy of Sciences of the United States of America · 1990Article
- Localization of beta-adrenergic receptors in A431 cells in situ. Effect of chronic exposure to agonist.The Biochemical journal · 1989Article
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3 authors at 1 institution in 1 country.
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Abstract
Polyclonal antibodies directed against (i) rodent lung beta 2-adrenergic receptor, (ii) a synthetic fragment of an extracellular domain of the receptor, and (iii) human placenta G-protein beta-subunits, were used to localize these antigens in situ in intact and permeabilized human epidermoid carcinoma A431 cells. Antibodies directed against beta 2-adrenergic receptors showed a punctate immunofluorescence staining throughout the cell surface of fixed intact cells. Punctate staining was also observed in clones of Chinese hamster ovary cells transfected with an expression vector harbouring the gene for the hamster beta 2-adrenergic receptor. The immunofluorescence observed with anti-receptor antibodies paralleled the level of receptor expression. In contrast, the beta-subunits common to G-proteins were not stained in fixed intact cells, presumably reflecting their intracellular localization. In detergent-permeabilized fixed cells, strong punctate staining of G beta-subunits was observed throughout the cytoplasm. This is the first indirect immunofluorescence localization of beta-adrenergic receptors and G-proteins. Punctate immunofluorescence staining suggests that both antigens are distributed in clusters.
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