2oxd
From Proteopedia
|
Protein kinase CK2 in complex with tetrabromobenzoimidazole K17, K22 and K32 inhibitors
Overview
CK2 is a highly pleiotropic Ser/Thr protein kinase that is able to promote, cell survival and enhance the tumour phenotype under specific, circumstances. We have determined the crystal structure of three new, complexes with tetrabromobenzimidazole derivatives that display K(i), values between 0.15 and 0.30 muM. A comparative analysis of these data, with those of four other inhibitors of the same family revealed the, presence of some highly conserved water molecules in the ATP-binding site., These waters reside near Lys68, in an area with a positive electrostatic, potential that is able to attract and orient negatively charged ligands., The presence of this positive region and two unique bulky residues that, are typical of CK2, Ile66 and Ile174, play a critical role in determining, the ligand orientation and binding selectivity.
About this Structure
2OXD is a Single protein structure of sequence from Zea mays with as ligand. Active as Non-specific serine/threonine protein kinase, with EC number 2.7.11.1 Full crystallographic information is available from OCA.
Reference
The ATP-Binding Site of Protein Kinase CK2 Holds a Positive Electrostatic Area and Conserved Water Molecules., Battistutta R, Mazzorana M, Cendron L, Bortolato A, Sarno S, Kazimierczuk Z, Zanotti G, Moro S, Pinna LA, Chembiochem. 2007 Sep 4;. PMID:17768728
Page seeded by OCA on Wed Jan 23 12:49:45 2008
