Publication Abstract from PubMed
The crystal structure of a complex of the catalytic subunit (type alpha) of cAMP-dependent protein kinase (PKA C alpha) with ARC-type inhibitor (ARC-1034), the presumed lead scaffold of previously reported adenosine-oligo-arginine conjugate-based (ARC-type) inhibitors, was solved. Structural elements important for interaction with the kinase were established with specifically modified derivatives of the lead compound. On the basis of this knowledge, a new generation of inhibitors, conjugates of adenosine-4'-dehydroxymethyl-4'-carboxylic acid moiety and oligo(D-arginine), was developed with inhibitory constants well into the subnanomolar range. The structural determinants of selectivity of the new compounds were established in assays with ROCK-II and PKBgamma.
Structural analysis of ARC-type inhibitor (ARC-1034) binding to protein kinase A catalytic subunit and rational design of bisubstrate analogue inhibitors of basophilic protein kinases.,Lavogina D, Lust M, Viil I, Konig N, Raidaru G, Rogozina J, Enkvist E, Uri A, Bossemeyer D J Med Chem. 2009 Jan 22;52(2):308-21. PMID:19143565[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
