ISDA

Deposition Date 2011-11-04

Release Date 2012-01-25

Last Version Date 2024-11-06

Entry Detail

PDB ID:

4A6L

Keywords:

HYDROLASE

Title:

beta-tryptase inhibitor

Biological Source:

Source Organism:

HOMO SAPIENS (Taxon ID: 9606)

Host Organism:

PICHIA PASTORIS

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.05 Å

R-Value Free:

0.21

R-Value Work:

0.18

R-Value Observed:

0.18

Space Group:

P 41

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:TRYPTASE ALPHA/BETA-1
Chain IDs:A, B, C, D
Chain Length:245
Number of Molecules:4
Biological Source:HOMO SAPIENS

UniProt ID:P20231 Pfam ID:PF00089

Ligand Molecules

P43

Primary Citation

Structure-Based Library Design and the Discovery of a Potent and Selective Mast Cell Beta-Tryptase Inhibitor as an Oral Therapeutic Agent.

Liang, G, Aldous, S, Merriman, G, Levell, J, Pribish, J, Cairns, J, Chen, X, Maignan, S, Mathieu, M, Tsay, J, Sides, K, Rebello, S, Whitely, B, Morize, I, Pauls, H.W.Show

Bioorg.Med.Chem.Lett. 22 1049 ? (2012)

PMID: 22192588 DOI: 10.1016/J.BMCL.2011.11.119

Abstact

A solid phase combinatorial library was designed based on X-ray structures and in-silico models to explore an inducible S4+ pocket, which is formed by a simple side-chain rotation of Tyr95. This inducible S4+ pocket is unique to β-tryptase and does not exist for other trypsin-like serine proteases of interest. Therefore, inhibitors utilizing this pocket have inherent advantages for being selective against other proteases in the same family. A member of this library was found to be a potent and selective β-tryptase inhibitor with a suitable pharmacokinetic profile for further clinical evaluation.

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