ISDA

Entry Detail

PDB ID:

5I8G

Keywords:

Title:

CBP in complex with Cpd637 ((R)-4-methyl-6-(1-methyl-3-(1-methyl-1H-pyrazol-4-yl)-1H-indazol-5-yl)-1,3,4,5-tetrahydro-2H-benzo[b][1,4]diazepin-2-one)

Biological Source:

Source Organism:

Homo sapiens

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2016-02-18

Release Date:

2016-04-20

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.41 Å

R-Value Free:

0.21

R-Value Work:

0.18

R-Value Observed:

0.18

Space Group:

C 1 2 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:CREB-binding protein
Chain IDs:A
Chain Length:264
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:Q92793 Pfam ID:PF00439, PF06001 EC:2.3.1.48

Ligand Molecules

69E

B3P

EDO

PEG

Primary Citation

Fragment-Based Discovery of a Selective and Cell-Active Benzodiazepinone CBP/EP300 Bromodomain Inhibitor (CPI-637).

Taylor, A.M, Cote, A, Hewitt, M.C, Pastor, R, Leblanc, Y, Nasveschuk, C.G, Romero, F.A, Crawford, T.D, Cantone, N, Jayaram, H, Setser, J, Murray, J, Beresini, M.H, de Leon Boenig, G, Chen, Z, Conery, A.R, Cummings, R.T, Dakin, L.A, Flynn, E.M, Huang, O.W, Kaufman, S, Keller, P.J, Kiefer, J.R, Lai, T, Li, Y, Liao, J, Liu, W, Lu, H, Pardo, E, Tsui, V, Wang, J, Wang, Y, Xu, Z, Yan, F, Yu, D, Zawadzke, L, Zhu, X, Zhu, X, Sims, R.J, Cochran, A.G, Bellon, S, Audia, J.E, Magnuson, S, Albrecht, B.K.Show

Acs Med.Chem.Lett. 7 531 536 (2016)

PMID: 27190605 DOI: 10.1021/acsmedchemlett.6b00075

Abstact

CBP and EP300 are highly homologous, bromodomain-containing transcription coactivators involved in numerous cellular pathways relevant to oncology. As part of our effort to explore the potential therapeutic implications of selectively targeting bromodomains, we set out to identify a CBP/EP300 bromodomain inhibitor that was potent both in vitro and in cellular target engagement assays and was selective over the other members of the bromodomain family. Reported here is a series of cell-potent and selective probes of the CBP/EP300 bromodomains, derived from the fragment screening hit 4-methyl-1,3,4,5-tetrahydro-2H-benzo[b][1,4]diazepin-2-one.

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