Fodrin (nonerythroid spectrin) and its associated proteins have been previously implicated in the establishment of specialized membrane-cytoskeletal domains in differentiating cells. Using antiserum which is monospecific for the alpha-subunit of fodrin, we demonstrate that alpha-fodrin is present in oocytes and adult tissues of Xenopus laevis. Analyses of the de novo synthesis of alpha-fodrin during embryonic development reveal that alpha-fodrin is synthesized in oocytes, but not during early development.
View Article and Find Full Text PDFSeveral overlapping cDNA clones encompassing 2760 nucleotides of the alpha-subunit of a human non-erythroid spectrin (termed fodrin) were isolated from a human lung fibroblast cDNA library. DNA and RNA blot analyses indicated that a single copy alpha-fodrin gene encodes a 9-kb transcript. The cDNA clones were sequenced, and all were found to contain long open reading frames.
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