3BLS	Cephalosporinase	date	Jun 04, 1998
title	Ampc Beta-Lactamase From Escherichia Coli
authors	K.C.Usher, B.K.Shoichet, S.J.Remington
compound		source
Molecule: Ampc Beta-Lactamase Chain: A, B Ec: 3.5.2.6 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 83333 Strain: K12 Cellular_location: Periplasm Gene: Ampc Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Jm109 Expression_system_cellular_location: Extracellular Expression_system_vector_type: Plasmid Expression_system_plasmid: Pog0295 Expression_system_gene: Ampc
symmetry	Space Group: C 1 2 1	R_factor 0.159 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 119.380 78.970 99.300 90.00 116.30 90.00
method	X-Ray Diffraction	resolution	2.30 Å
ligand	APB BindingDB	enzyme	Hydrolase E.C.3.5.2.6 BRENDA
related structures	by homologous chain: 1IEM, 1KDW
Gene Ontology	Chain Function Process Component A, B
Primary reference	Three-dimensional structure of AmpC beta-lactamase from Escherichia coli bound to a transition-state analogue: possible implications for the oxyanion hypothesis and for inhibitor design., Usher KC, Blaszczak LC, Weston GS, Shoichet BK, Remington SJ, Biochemistry 1998 Nov 17;37(46):16082-92. PMID:9819201

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (118 Kb) [Save to disk] Biological Unit Coordinates (3bls.pdb1.gz) 58 Kb Biological Unit Coordinates (3bls.pdb2.gz) 58 Kb LPC: Ligand-Protein Contacts for 3BLS CSU: Contacts of Structural Units for 3BLS Likely Quarternary Molecular Structure file(s) for 3BLS Structure Factors (309 Kb) Retrieve 3BLS in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3BLS from S2C, [Save to disk] Re-refined 3bls structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3BLS 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 3BLS

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 3BLS, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d3blsa_, region A [Jmol] [rasmolscript] [script source]     - Domain d3blsb_, 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: [3bls_B] [3bls_A] [3bls] SWISS-PROT database: [P00811] Domain organization of [AMPC_ECOLI] by SWISSPFAM

Other resources with information on 3BLS

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

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