1TOE	Transferase	date	Jun 14, 2004
title	Unliganded Structure Of Hexamutant + A293d Mutant Of E. Coli Aminotransferase
authors	M.A.Chow, K.E.Mcelroy, K.D.Corbett, J.M.Berger, J.F.Kirsch
compound		source
Molecule: Aspartate Aminotransferase Chain: A Synonym: Transaminase A, Aspat Ec: 2.6.1.1 Engineered: Yes Mutation: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Aspc, B0928 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Mg204 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pjo2
symmetry	Space Group: C 2 2 21	R_factor 0.178 R_Free 0.202
crystal cell	length a length b length c angle alpha angle beta angle gamma 85.713 152.865 79.117 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.00 Å
ligand	LLP, SO4	enzyme	Transferase E.C.2.6.1.1 BRENDA
related structures	by homologous chain: 1QIT, 1SPA
Gene Ontology	Chain Function Process Component A
Primary reference	Narrowing substrate specificity in a directly evolved enzyme: the A293D mutant of aspartate aminotransferase., Chow MA, McElroy KE, Corbett KD, Berger JM, Kirsch JF, Biochemistry 2004 Oct 12;43(40):12780-7. PMID:15461450

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (70 Kb) [Save to disk] Biological Unit Coordinates (1toe.pdb1.gz) 128 Kb LPC: Ligand-Protein Contacts for 1TOE CSU: Contacts of Structural Units for 1TOE Likely Quarternary Molecular Structure file(s) for 1TOE Structure Factors (272 Kb) Retrieve 1TOE in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1TOE from S2C, [Save to disk] Re-refined 1toe structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1TOE 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 1TOE

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 1TOE, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1toea_, 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: [1toe] [1toe_A] SWISS-PROT database: [P00509] Domain organization of [AAT_ECOLI] by SWISSPFAM

Other resources with information on 1TOE

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

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