3MB7

Human CK2 catalytic domain in complex with a difurane derivative inhibitor (AMR)

Summary for 3MB7

• Entry DOI: 10.2210/pdb3mb7/pdb
• Related: 3MB6
• Descriptor: Casein kinase II subunit alpha, naphtho[2,1-b:7,8-b']difuran-2,9-dicarboxylic acid, SULFATE ION, ... (4 entities in total)
• Functional Keywords: kinases, difurane, inhibitor, ck2, atp-binding, kinase, nucleotide-binding, serine/threonine-protein kinase, transferase
• Biological source: Homo sapiens (human)
• Total number of polymer chains: 1
• Total formula weight: 40138.58

Authors

Reiser, J.-B.,Prudent, R.,Cochet, C. (deposition date: 2010-03-25, release date: 2010-05-05, Last modification date: 2023-09-06)

Primary citation

Lopez-Ramos, M.,Prudent, R.,Moucadel, V.,Sautel, C.F.,Barette, C.,Lafanechere, L.,Mouawad, L.,Grierson, D.,Schmidt, F.,Florent, J.C.,Filippakopoulos, P.,Bullock, A.N.,Knapp, S.,Reiser, J.B.,Cochet, C.
New potent dual inhibitors of CK2 and Pim kinases: discovery and structural insights.
Faseb J., 24:3171-3185, 2010

PubMed Abstract: Protein kinase casein kinase 2 (CK2) is a serine/threonine kinase with evidence of implication in growth dysregulation and apoptosis resistance, making it a relevant target for cancer therapy. Several CK2 inhibitors have been developed showing variable efficiency, emphasizing the need to expand the chemical diversity of those inhibitors. We report the identification and characterization of 2,8-difurandicarboxylic acid derivatives as a new class of nanomolar ATP-competitive inhibitors. Selectivity profiling pointed out proviral insertion Moloney virus kinases (Pim kinases) as the only other kinases that are significantly inhibited. By combining structure-activity relationship analysis with structural determination, we were able to determine the binding mode of these inhibitors for both kinases and to explain their strong inhibitory potency. Essential chemical features necessary for activity on both kinases were then identified. The described compounds are not cell permeable: however, they could provide a lead for developing novel inhibitors usable also in vivo. Given the similar but not redundant pathophysiological functions of CK2 and Pim family members, such inhibitors would provide new attractive leads for targeted cancer therapy. This work highlights that 2 functionally related kinases from different kinome branches display exquisite sensitivity to a common inhibitor.

PubMed: 20400536
DOI: 10.1096/fj.09-143743

Experimental method

X-RAY DIFFRACTION (1.65 Å)