ISDA

Entry Detail

PDB ID:

4WVU

Keywords:

APOPTOSIS

Title:

CRYSTAL STRUCTURE OF XIAP-BIR2 DOMAIN COMPLEXED WITH LIGAND BOUND

Biological Source:

Source Organism:

Homo sapiens,

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2014-11-07

Release Date:

2015-03-04

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.02 Å

R-Value Free:

0.17

R-Value Work:

0.13

R-Value Observed:

0.14

Space Group:

P 1 21 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:E3 ubiquitin-protein ligase XIAP
Mutations:C202A, C213G
Chain IDs:A
Chain Length:98
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P98170 Pfam ID:PF00653

Polymer Type:polypeptide(L)
Description:3,11-DIFLUORO-6,8,13-TRIMETHYL-8H-QUINO[4,3,2-KL]ACRIDIN-13-IUM
Chain IDs:B
Chain Length:5
Number of Molecules:1
Biological Source:

Ligand Molecules

GOL

SO4

Peptide-like Molecules

PRD_002132

Primary Citation

The Discovery of Macrocyclic XIAP Antagonists from a DNA-Programmed Chemistry Library, and Their Optimization To Give Lead Compounds with in Vivo Antitumor Activity.

Seigal, B.A, Connors, W.H, Fraley, A, Borzilleri, R.M, Carter, P.H, Emanuel, S.L, Fargnoli, J, Kim, K, Lei, M, Naglich, J.G, Pokross, M.E, Posy, S.L, Shen, H, Surti, N, Talbott, R, Zhang, Y, Terrett, N.K.Show

J.Med.Chem. 58 2855 2861 (2015)

PMID: 25695766 DOI: 10.1021/jm501892g

Abstact

Affinity selection screening of macrocycle libraries derived from DNA-programmed chemistry identified XIAP BIR2 and BIR3 domain inhibitors that displace bound pro-apoptotic caspases. X-ray cocrystal structures of key compounds with XIAP BIR2 suggested potency-enhancing structural modifications. Optimization of dimeric macrocycles with similar affinity for both domains were potent pro-apoptotic agents in cancer cell lines and efficacious in shrinking tumors in a mouse xenograft model.

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Protein

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Primary Citation of related structures