Structure of GlpG in complex with a mechanism-based isocoumarin inhibitor

Beta-NONYLGLUCOSIDE; nonyl beta-D-glucoside; nonyl D-glucoside; nonyl glucoside

5-AMINO-2-(2-METHOXY-2-OXOETHYL)BENZOIC ACID

The Structural Basis for Catalysis and Substrate Specificity of a Rhomboid Protease

RAGPVTWVMMIACVVVFIAMQILGDQEVMLWLAWPFDPTLKFEFWRYFTHALMHFSLMHILFNLLWWWYLGGAVEKRLGS
GKLIVITLISALLSGYVQQKFSGPWFGGLSGVVYALMGYVWLRGERDPQSGIYLQRGLIIFALIWIVAGWFDLFGMSMAN
GAHIAGLAVGLAMAFVDSL

2 M AMMONIUM CHLORIDE, 0.1 M BIS-TRIS PH 7.0, 298K

CRYSTAL STRUCTURE OF E.COLI RHOMBOID PROTEASE GLPG, NATIVE ENZYME

CRYSTAL STRUCTURE OF GLPG, A RHOMBOID INTRAMEMBRANE SERINEPROTEASE

METHYL-2(2-CARBOXY-4-AMINO-PHENYL)ACETATE (ISM): LINKS C1
OF ISM AND OG OF S201 AND C8 OF ISM AND NE2 OF H254
THE ISOCOUMARIN RING IS OPENED BY THE NUCLEOPHILIC
ATTACK OF S201 ON C1-O1 BOND AND SUBSEQUENTLY A REACTION BETWEEN
HISTIDINE AT THE ACTIVE SITE CREATES A SECOND COVALENT BOND.
ISM IS IDENTICAL TO HETEROGEN ICU IN PDB 1JIM BUT LACKS AN
ACETATE MOLECULE AT POSITION C8.
DIFFERENCE MAP PEAK INDICATE A POSSIBILITY OF ALTERNATE CONFORMATION
AT RESIDUES 250-252 BUT SINCE THE DENSITY IS WEAK ONLY ONE
CONFORMATION BASED ON GEOMETRY AND MAP HAS BEEN MODELLED.
THE OCCUPANCY OF THE LIGAND ISM IS SET TO 1, WHEN REFINED IT
INDICATES AN OCCUPANCY OF 0.92-0.96.

COVALENT LINK OF ICM WITH OG OF SER 201 AND NE2 OF HIS 254

HYDROLASE, MEMBRANE PROTEIN, INTRAMEMBRANE PROTEASE