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Beta Tubulin antibodies are useful as loading controls for Western Blotting and ELISA, as well as in studies invlolving cell structure and division. Tubulin is the major building block of microtubules. This intracellular cylindrical filamentous structure is present in almost all eukaryotic cells. Microtubules function as structural and mobile elements in mitosis, intracellular transport, flagellar movement, and in the cytoskeleton.