3AI8	Hydrolase Hydrolase Inhibitor	date	May 11, 2010
title	Cathepsin B In Complex With The Nitroxoline
authors	M.Renko, B.Mirkovic, S.Gobec, J.Kos, D.Turk
compound		source
Molecule: Cathepsin B Chain: B, A Synonym: Cathepsin B1, App Secretase, Apps, Cathepsin B Lig Cathepsin B Heavy Chain; Ec: 3.4.22.1 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Ctsb Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21de3 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet3a
symmetry	Space Group: C 1 2 1	R_factor 0.183 R_Free 0.244
crystal cell	length a length b length c angle alpha angle beta angle gamma 153.682 29.976 119.198 90.00 126.25 90.00
method	X-Ray Diffraction	resolution	2.11 Å
ligand	HNQ BindingDB	enzyme	Hydrolase E.C.3.4.22.1 BRENDA
Gene Ontology	Chain Function Process Component A, B
Primary reference	Novel Mechanism of Cathepsin B Inhibition by Antibiotic Nitroxoline and Related Compounds., Mirkovic B, Renko M, Turk S, Sosic I, Jevnikar Z, Obermajer N, Turk D, Gobec S, Kos J, ChemMedChem. 2011 May 20. doi: 10.1002/cmdc.201100098. PMID:21598397

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (89 Kb) [Save to disk] Biological Unit Coordinates (3ai8.pdb1.gz) 43 Kb Biological Unit Coordinates (3ai8.pdb2.gz) 43 Kb LPC: Ligand-Protein Contacts for 3AI8 CSU: Contacts of Structural Units for 3AI8 Structure Factors (631 Kb) Retrieve 3AI8 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3AI8 from S2C, [Save to disk] Re-refined 3ai8 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3AI8 in 3D

Proteopedia, because life has more than 2D. On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure. On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.

Visual 3D analysis of 3AI8

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 3AI8, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3ai8_A] [3ai8] [3ai8_B] SWISS-PROT database: Domain organization of by SWISSPFAM Domain found in 3AI8: [Pept_C1 ] by SMART

Other resources with information on 3AI8

Community annotation for 3AI8 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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