1KFB	Lyase	date	Nov 20, 2001
title	Crystal Structure Of Alphat183v Mutant Of Tryptophan Synthas Salmonella Typhimurium With Indole Glycerol Phosphate
authors	V.Kulik, M.Weyand, R.Siedel, D.Niks, D.Arac, M.F.Dunn, I.Schlichti
compound		source
Molecule: Tryptophan Synthase Alpha Chain Chain: A Engineered: Yes Mutation: Yes		Organism_scientific: Salmonella Typhimurium Organism_taxid: 602 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_plasmid: Pstb7
Molecule: Tryptophan Synthase Beta Chain Chain: B Engineered: Yes		Organism_scientific: Salmonella Typhimurium Organism_taxid: 602 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_plasmid: Pstb7
symmetry	Space Group: C 1 2 1	R_factor 0.164 R_Free 0.210
crystal cell	length a length b length c angle alpha angle beta angle gamma 181.937 60.255 67.119 90.00 94.84 90.00
method	X-Ray Diffraction	resolution	1.90 Å
ligand	IGP, PLP	enzyme
related structures	by homologous chain: 1KFJ, 1XCF, 2TYS
Gene Ontology	Chain Function Process Component A B
Primary reference	On the role of alphaThr183 in the allosteric regulation and catalytic mechanism of tryptophan synthase., Kulik V, Weyand M, Seidel R, Niks D, Arac D, Dunn MF, Schlichting I, J Mol Biol 2002 Dec 6;324(4):677-90. PMID:12460570

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (113 Kb) [Save to disk] Biological Unit Coordinates (1kfb.pdb1.gz) 211 Kb LPC: Ligand-Protein Contacts for 1KFB CSU: Contacts of Structural Units for 1KFB Likely Quarternary Molecular Structure file(s) for 1KFB Structure Factors (427 Kb) Retrieve 1KFB in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1KFB from S2C, [Save to disk] Re-refined 1kfb structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1KFB in 3D

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Visual 3D analysis of 1KFB

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 1KFB, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1kfba_, region A [Jmol] [rasmolscript] [script source]     - Domain d1kfbb_, 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: [1kfb_B] [1kfb_A] [1kfb] SWISS-PROT database: [P00929] [P0A2K1] Domain organization of [TRPA_SALTY] [TRPB_SALTY] by SWISSPFAM

Other resources with information on 1KFB

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

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