2C1B image
Entry Detail
PDB ID:
2C1B
Title:
Structure of cAMP-dependent protein kinase complexed with (4R,2S)-5'-(4-(4-Chlorobenzyloxy)pyrrolidin-2-ylmethanesulfonyl)isoquinoline
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2005-09-12
Release Date:
2005-11-02
Method Details:
Experimental Method:
Resolution:
2.00 Å
R-Value Free:
0.21
R-Value Work:
0.16
R-Value Observed:
0.16
Space Group:
P 21 21 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:CAMP-DEPENDENT PROTEIN KINASE
Chain IDs:A
Chain Length:351
Number of Molecules:1
Biological Source:BOS TAURUS
Polymer Type:polypeptide(L)
Description:CAMP-DEPENDENT PROTEIN KINASE INHIBITOR
Chain IDs:B (auth: I)
Chain Length:20
Number of Molecules:1
Biological Source:HOMO SAPIENS
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
SEP A SER PHOSPHOSERINE
TPO A THR PHOSPHOTHREONINE
Ligand Molecules
Primary Citation
Structure-based design of isoquinoline-5-sulfonamide inhibitors of protein kinase B.
Bioorg. Med. Chem. 14 1255 1273 (2006)
PMID: 16249095 DOI: 10.1016/j.bmc.2005.09.055

Abstact

Structure-based drug design of novel isoquinoline-5-sulfonamide inhibitors of PKB as potential antitumour agents was investigated. Constrained pyrrolidine analogues that mimicked the bound conformation of linear prototypes were identified and investigated by co-crystal structure determinations with the related protein PKA. Detailed variation in the binding modes between inhibitors with similar overall conformations was observed. Potent PKB inhibitors from this series inhibited GSK3beta phosphorylation in cellular assays, consistent with inhibition of PKB kinase activity in cells.

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Primary Citation of related structures