1I2W	Hydrolase	date	Feb 12, 2001
title	Beta-Lactamase From Bacillus Licheniformis Bs3 Complexed Wit Cefoxitin
authors	E.Fonze, M.Vanhove, G.Dive, E.Sauvage, J.M.Frere, P.Charlier
compound		source
Molecule: Beta-Lactamase Chain: A, B Ec: 3.5.2.6 Engineered: Yes		Organism_scientific: Bacillus Licheniformis Organism_taxid: 1402 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21de3 Expression_system_vector_type: Plasmid Expression_system_plasmid: P-Et-22(B)Kr
symmetry	Space Group: P 1 21 1	R_factor 0.216 R_Free 0.256
crystal cell	length a length b length c angle alpha angle beta angle gamma 47.344 106.372 63.873 90.00 94.18 90.00
method	X-Ray Diffraction	resolution	1.70 Å
ligand	1QL, OUT	enzyme	Hydrolase E.C.3.5.2.6 BRENDA
related structures	by homologous chain: 1I2S, 4BLM
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal structures of the Bacillus licheniformis BS3 class A beta-lactamase and of the acyl-enzyme adduct formed with cefoxitin., Fonze E, Vanhove M, Dive G, Sauvage E, Frere JM, Charlier P, Biochemistry 2002 Feb 12;41(6):1877-85. PMID:11827533

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (89 Kb) [Save to disk] Biological Unit Coordinates (1i2w.pdb1.gz) 85 Kb LPC: Ligand-Protein Contacts for 1I2W CSU: Contacts of Structural Units for 1I2W Likely Quarternary Molecular Structure file(s) for 1I2W Structure Factors (488 Kb) Retrieve 1I2W in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1I2W from S2C, [Save to disk] Re-refined 1i2w structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1I2W 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 1I2W

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 1I2W, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1i2wa_, region A [Jmol] [rasmolscript] [script source]     - Domain d1i2wb_, region B [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1i2w] [1i2w_A] [1i2w_B] SWISS-PROT database: [P00808] Domain organization of [BLAC_BACLI] by SWISSPFAM

Other resources with information on 1I2W

Community annotation for 1I2W at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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