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The structure of pCDK2/cyclin A superimposed on pCDK2/cyclin E1 and pCDK2/cyclin B, respectively. (A) Structural superposition of pCDK2/cyclin A (CDK2 in green and cyclin A in yellow, respectively) and pCDK2/cyclin E1 (CDK2 in cyan and cyclin E1 in pink, respectively); (B) The alignment of pCDK2/cyclin A and pCDK2/cyclin B (CDK2 in pink and cyclin B in orange, respectively). Coordinates used for CDK2/cyclin A, CDK2/cyclin B and CDK2/cyclin E1 are 1QMZ, 2JGZ and 1W98, respectively.
