3IIQ	Hydrolase Antibiotic Inhibitor	date	Aug 03, 2009
title	Crystallographic Analysis Of Bacterial Signal Peptidase In T Complex With Arylomycin A2 And A Beta-Sultam Inhibitor
authors	M.Paetzel
compound		source
Molecule: Signal Peptidase I Chain: A, B Fragment: Unp Residues 76-323, Periplasmic Domain Synonym: Spase I, Leader Peptidase I Ec: 3.4.21.89 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 83333 Strain: K-12 Gene: Lepb Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 (De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet
Molecule: Arylomycin A2 Chain: C, D		Organism_scientific: Streptomyces Sp. Organism_taxid: 1931
symmetry	Space Group: P 43 21 2	R_factor 0.207 R_Free 0.250
crystal cell	length a length b length c angle alpha angle beta angle gamma 70.007 70.007 259.894 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.00 Å
ligand	5PG, CCN, DAL, DSE, GOL, JZA, M12, TRT	enzyme	Hydrolase E.C.3.4.21.89 BRENDA
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystallographic analysis of bacterial signal peptidase in ternary complex with arylomycin A2 and a beta-sultam inhibitor., Luo C, Roussel P, Dreier J, Page MG, Paetzel M, Biochemistry. 2009 Sep 29;48(38):8976-84. PMID:19655811

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (93 Kb) [Save to disk] Biological Unit Coordinates (3iiq.pdb1.gz) 42 Kb Biological Unit Coordinates (3iiq.pdb2.gz) 42 Kb LPC: Ligand-Protein Contacts for 3IIQ CSU: Contacts of Structural Units for 3IIQ Structure Factors (1070 Kb) Retrieve 3IIQ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3IIQ from S2C, [Save to disk] Re-refined 3iiq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3IIQ in 3D

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Visual 3D analysis of 3IIQ

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 3IIQ, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3iiq_D] [3iiq_B] [3iiq_C] [3iiq_A] [3iiq] SWISS-PROT database: [P00803] Domain organization of [LEP_ECOLI] by SWISSPFAM

Other resources with information on 3IIQ

Community annotation for 3IIQ at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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