- Comparison of the ATP binding sites of protein kinases using conformationally diverse bisindolylmaleimides. Bartlett, S., Beddard, G.S., Jackson, R.M., Kayser, V., Kilner, C., Leach, A., Nelson, A., Oledzki, P.R., Parker, P., Reid, G.D., Warriner, S.L. J. Am. Chem. Soc. (2005)