ISDA: 3BQN

Deposition Date 2007-12-20

Release Date 2008-08-19

Last Version Date 2024-02-21

Entry Detail

PDB ID:

3BQN

Keywords:

CELL ADHESION

Title:

LFA-1 I domain bound to inhibitors

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.80 Å

R-Value Free:

0.25

R-Value Work:

0.20

R-Value Observed:

0.20

Space Group:

P 21 21 2

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Integrin alpha-L
Gene (Uniprot):ITGAL
Chain IDs:A (auth: B), B (auth: C)
Chain Length:182
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:P20701 Pfam ID:PF00092

Ligand Molecules

BQN

Primary Citation

Structure-activity relationship of ortho- and meta-phenol based LFA-1 ICAM inhibitors

Lin, E.Y, Guckian, K.M, Silvian, L, Chin, D, Boriack-Sjodin, P.A, van Vlijmen, H, Friedman, J.E, Scott, D.M.Show

Bioorg.Med.Chem.Lett. 18 5245 5248 (2008)

PMID: 18783948 DOI: 10.1016/j.bmcl.2008.08.062

Abstact

LFA-1 ICAM inhibitors based on ortho- and meta-phenol templates were designed and synthesized by Mitsunobu chemistry. The selection of targets was guided by X-ray co-crystal data, and led to compounds which showed an up to 30-fold increase in potency over reference compound 1 in the LFA-1/ICAM1-Ig assay. The most active compound exploited a new hydrogen bond to the I-domain and exhibited subnanomolar potency.

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Primary Citation of related structures