ISDA

Deposition Date 2015-12-21

Release Date 2016-06-01

Last Version Date 2024-01-10

Entry Detail

PDB ID:

5FH8

Keywords:

TRANSCRIPTION

Title:

Crystal structure of the fifth bromodomain of human PB1 in complex with compound 28

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.55 Å

R-Value Free:

0.22

R-Value Work:

0.18

R-Value Observed:

0.18

Space Group:

P 1 21 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Protein polybromo-1
Gene (Uniprot):PBRM1
Chain IDs:A, B, C, D
Chain Length:124
Number of Molecules:4
Biological Source:Homo sapiens

UniProt ID:Q86U86 Pfam ID:PF00439

Ligand Molecules

5XK

DMS

EDO

Primary Citation

Identification and Development of 2,3-Dihydropyrrolo[1,2-a]quinazolin-5(1H)-one Inhibitors Targeting Bromodomains within the Switch/Sucrose Nonfermenting Complex.

Sutherell, C.L, Tallant, C, Monteiro, O.P, Yapp, C, Fuchs, J.E, Fedorov, O, Siejka, P, Muller, S, Knapp, S, Brenton, J.D, Brennan, P.E, Ley, S.V.Show

J.Med.Chem. 59 5095 5101 (2016)

PMID: 27119626 DOI: 10.1021/acs.jmedchem.5b01997

Abstact

Bromodomain containing proteins PB1, SMARCA4, and SMARCA2 are important components of SWI/SNF chromatin remodeling complexes. We identified bromodomain inhibitors that target these proteins and display unusual binding modes involving water displacement from the KAc binding site. The best compound binds the fifth bromodomain of PB1 with a KD of 124 nM, SMARCA2B and SMARCA4 with KD values of 262 and 417 nM, respectively, and displays excellent selectivity over bromodomains other than PB1, SMARCA2, and SMARCA4.

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Primary Citation of related structures