ISDA: 2E1W

Deposition Date 2006-10-30

Release Date 2006-11-07

Last Version Date 2024-03-13

Entry Detail

PDB ID:

2E1W

Keywords:

HYDROLASE

Title:

Crystal structure of adenosine deaminase complexed with potent inhibitors

Biological Source:

Source Organism:

Bos taurus (Taxon ID: 9913)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.50 Å

R-Value Free:

0.24

R-Value Work:

0.21

R-Value Observed:

0.22

Space Group:

P 43 21 2

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Adenosine deaminase
Gene (Uniprot):ADA
Chain IDs:A
Chain Length:356
Number of Molecules:1
Biological Source:Bos taurus

UniProt ID:P56658 Pfam ID:PF00962 EC:3.5.4.4

Ligand Molecules

FR6

Primary Citation

Structure-Based Design and Synthesis of Non-Nucleoside, Potent, and Orally Bioavailable Adenosine Deaminase Inhibitors

Terasaka, T, Okumura, H, Tsuji, K, Kato, T, Nakanishi, I, Kinoshita, T, Kato, Y, Kuno, M, Seki, N, Naoe, Y, Inoue, T, Tanaka, K, Nakamura, K.Show

J.Med.Chem. 47 2728 2731 (2004)

PMID: 15139750 DOI: 10.1021/jm0499559

Abstact

We disclose optimization efforts based on the novel non-nucleoside adenosine deaminase (ADA) inhibitor, 4 (K(i) = 680 nM). Structure-based drug design utilizing the crystal structure of the 4/ADA complex led to discovery of 5 (K(i) = 11 nM, BA = 30% in rats). Furthermore, from metabolic considerations, we discovered two inhibitors with improved oral bioavailability [6 (K(i) = 13 nM, BA = 44%) and 7 (K(i) = 9.8 nM, BA = 42%)]. 6 demonstrated in vivo efficacy in models of inflammation and lymphoma.

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Primary Citation of related structures

Abstact

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