ISDA

Entry Detail

PDB ID:

3LN0

Keywords:

OXIDOREDUCTASE

Title:

Structure of compound 5c-S bound at the active site of COX-2

Biological Source:

Source Organism:

Mus musculus

Host Organism:

Spodoptera frugiperda

PDB Version:

Deposition Date:

2010-02-01

Release Date:

2010-10-27

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.20 Å

R-Value Free:

0.23

R-Value Work:

0.20

R-Value Observed:

0.21

Space Group:

P 21 21 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Prostaglandin G/H synthase 2
Chain IDs:A, B, C, D
Chain Length:587
Number of Molecules:4
Biological Source:Mus musculus

UniProt ID:Q05769 Pfam ID:PF00008, PF03098 EC:1.14.99.1

Modified Residue

Compound ID	Chain ID	Parent Comp ID	Details	2D Image
ASN	B	ASN	GLYCOSYLATION SITE

Ligand Molecules

52B

BOG

HEM

NAG

Peptide-like Molecules

PRD_900017

Primary Citation

The novel benzopyran class of selective cyclooxygenase-2 inhibitors. Part 2: The second clinical candidate having a shorter and favorable human half-life.

Wang, J.L, Limburg, D, Graneto, M.J, Springer, J, Hamper, J.R, Liao, S, Pawlitz, J.L, Kurumbail, R.G, Maziasz, T, Talley, J.J, Kiefer, J.R, Carter, J.Show

Bioorg.Med.Chem.Lett. 20 7159 7163 (2010)

PMID: 20709553 DOI: 10.1016/j.bmcl.2010.07.054

Abstact

In this Letter, we provide the structure-activity relationships, optimization of design, testing criteria, and human half-life data for a series of selective COX-2 inhibitors. During the course of our structure-based drug design efforts, we discovered two distinct binding modes within the COX-2 active site for differently substituted members of this class. The challenge of a undesirably long human half-life for the first clinical candidate 1t(1/2)=360 h was addressed by multiple strategies, leading to the discovery of 29b-(S) (SC-75416) with t(1/2)=34 h.

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Primary Citation of related structures