PDBsum entry 1mmj

Hydrolase

PDB id: 1mmj

Contents

Protein chain

240 a.a. *

Ligands

SO4

FR1

Metals

_CA

Waters ×269

* Residue conservation analysis

References listed in PDB file

Key reference

• Title: True interaction mode of porcine pancreatic elastase with fr136706, A potent peptidyl inhibitor.
• Authors: T.Kinoshita, I.Nakanishi, A.Sato, T.Tada.
• Ref.: Bioorg Med Chem Lett, 2003, 13, 21-24. [DOI no: 10.1016/S0960-894X(02)00852-1]
• PubMed id: 12467609

Abstract

The crystal structure of porcine pancreatic elastase (PPE) complexed with a potent peptidyl inhibitor, FR136706, was solved at 2.2A resolution. FR136706 fits snugly into the extended active site pocket. The benzene moiety of FR136706 induced dramatic movement of the side chain moiety of Arg217 and both moieties formed a pi-pi interaction, which has never been found previously in structures of PPE complexed with inhibitors. This novel interaction mode may lead to design of new types of inhibitors.