ISDA

Deposition Date 2015-03-04

Release Date 2015-06-17

Last Version Date 2024-02-28

Entry Detail

PDB ID:

4YKN

Keywords:

Transferase/Transferase Inhibitor

Title:

Pi3K alpha lipid kinase with Active Site Inhibitor

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

unidentified baculovirus

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.90 Å

R-Value Free:

0.24

R-Value Work:

0.20

R-Value Observed:

0.20

Space Group:

P 21 21 21

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Phosphatidylinositol 3-kinase regulatory subunit alpha,Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform fusion protein
Gene (Uniprot):PIK3R1, PIK3CA
Chain IDs:A
Chain Length:1383
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P27986,P42336 Pfam ID:PF00017, PF16454, PF02192, PF00794, PF00792, PF00613, PF00454 EC:2.7.1.153

Ligand Molecules

4EL

Primary Citation

Discovery of a Potent Class of PI3K alpha Inhibitors with Unique Binding Mode via Encoded Library Technology (ELT).

Yang, H, Medeiros, P.F, Raha, K, Elkins, P, Lind, K.E, Lehr, R, Adams, N.D, Burgess, J.L, Schmidt, S.J, Knight, S.D, Auger, K.R, Schaber, M.D, Franklin, G.J, Ding, Y, DeLorey, J.L, Centrella, P.A, Mataruse, S, Skinner, S.R, Clark, M.A, Cuozzo, J.W, Evindar, G, Sinnamon, R.H, McDevitt, P, Pietrak, B.L, Leydon, V.R, Xue, Y, Lehr, R, Qi, H, Burns, M, Elkins, P, Ward, P, Vincentini, G, Fisher, D, Grimes, M, Brandt, M, Auger, K.R, Ho, T, Johanson, K, Jones, C.S, Schwartz, B, Sweitzer, T.D, Kirkpatrick, R.B.Show

Acs Med.Chem.Lett. 6 531 536 (2015)

PMID: 26005528 DOI: 10.1021/acsmedchemlett.5b00025

Abstact

In the search of PI3K p110α wild type and H1047R mutant selective small molecule leads, an encoded library technology (ELT) campaign against the desired target proteins was performed which led to the discovery of a selective chemotype for PI3K isoforms from a three-cycle DNA encoded library. An X-ray crystal structure of a representative inhibitor from this chemotype demonstrated a unique binding mode in the p110α protein.

Legend

Protein

Chemical

Disease

Primary Citation of related structures