Abstract

Cleavage of tubulin at tryptophan residues yielded several peptides, one of which strongly interacted with aldolase as determined by inhibition of aldolase activity. This peptide was identified as the C-terminal, residues 408–451, of the α-subunit of tubulin. Peptides with identical sequences to the C-terminal regions of the α- and β-subunits of tubulin were synthesized to further characterize interactions with glycolytic enzymes. A 43-amino-acid C-terminal peptide from α-tubulin (residues 409–451) was found to have binding properties similar to those of native tubulin and was designated the tubulin glycolytic enzyme binding domain (T-GEBD-43mer).

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