1IYO	Hydrolase	date	Sep 04, 2002
title	Toho-1 Beta-Lactamase In Complex With Cefotaxime
authors	T.Shimamura, A.Ibuka, S.Fushinobu, T.Wakagi, M.Ishiguro, Y.Ishii, H.Matsuzawa
compound		source
Molecule: Toho-1 Beta-Lactamase Chain: A Ec: 3.5.2.6 Engineered: Yes Mutation: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Puc119
symmetry	Space Group: P 32 2 1	R_factor 0.178 R_Free 0.206
crystal cell	length a length b length c angle alpha angle beta angle gamma 72.581 72.581 98.179 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	1.80 Å
ligand	CEF, SO4	enzyme	Hydrolase E.C.3.5.2.6 BRENDA
related structures	by homologous chain: 1BZA, 1HZO
Gene Ontology	Chain Function Process Component A
Primary reference	Acyl-intermediate structures of the extended-spectrum class A beta-lactamase, Toho-1, in complex with cefotaxime, cephalothin, and benzylpenicillin., Shimamura T, Ibuka A, Fushinobu S, Wakagi T, Ishiguro M, Ishii Y, Matsuzawa H, J Biol Chem 2002 Nov 29;277(48):46601-8. Epub 2002 Sep 8. PMID:12221102

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (49 Kb) [Save to disk] Biological Unit Coordinates (1iyo.pdb1.gz) 45 Kb LPC: Ligand-Protein Contacts for 1IYO CSU: Contacts of Structural Units for 1IYO Likely Quarternary Molecular Structure file(s) for 1IYO Structure Factors (207 Kb) Retrieve 1IYO in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1IYO from S2C, [Save to disk] Re-refined 1iyo structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1IYO 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 1IYO

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 1IYO, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1iyoa_, region A [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: [1iyo] [1iyo_A] SWISS-PROT database: [Q47066] Domain organization of [BLT1_ECOLX] by SWISSPFAM

Other resources with information on 1IYO

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

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