Reconstitution of normal and hyperactivated forms of casein kinase-2 by variably mutated .beta.-subunits

Twenty-one mutants of the noncatalytic beta-subunit of human casein kinase-2 have been created, expressed in Escherichia coli, and purified to homogeneity. They are either modified at the autophosphorylation site (mutants beta delta 1-4 and beta A 5,6) or bear variable deletions in their C-terminal...

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