ISDA

Entry Detail

PDB ID:

1V7A

Keywords:

HYDROLASE

Title:

Crystal structures of adenosine deaminase complexed with potent inhibitors

Biological Source:

Source Organism:

Bos taurus

PDB Version:

Deposition Date:

2003-12-14

Release Date:

2004-12-21

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.50 Å

R-Value Free:

0.27

R-Value Work:

0.24

R-Value Observed:

0.25

Space Group:

P 43 21 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:adenosine deaminase
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

FRC

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