1K8Z	Lyase	date	Oct 26, 2001
title	Crystal Structure Of The Tryptophan Synthase Beta-Ser178pro Complexed With N-[1h-Indol-3-Yl-Acetyl]Glycine Acid
authors	M.Weyand, I.Schlichting, A.Marabotti, A.Mozzarelli
compound		source
Molecule: Tryptophan Synthase Alpha Chain Chain: A Ec: 4.2.1.20 Engineered: Yes		Organism_scientific: Salmonella Typhimurium Organism_taxid: 602 Gene: Trpatrpb Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Cb149 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pstb7
Molecule: Tryptophan Synthase Beta Chain Chain: B Ec: 4.2.1.20 Engineered: Yes Mutation: Yes		Organism_scientific: Salmonella Typhimurium Organism_taxid: 602 Gene: Trpatrpb Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Cb149 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pstb7
symmetry	Space Group: C 1 2 1	R_factor 0.209 R_Free 0.265
crystal cell	length a length b length c angle alpha angle beta angle gamma 184.420 61.035 67.534 90.00 94.69 90.00
method	X-Ray Diffraction	resolution	1.70 Å
ligand	IAG, NA, PLP	enzyme	Lyase E.C.4.2.1.20 BRENDA
related structures	by homologous chain: 1K7X, 1KFE
Gene Ontology	Chain Function Process Component A B
Primary reference	Crystal structure of the beta Ser178--> Pro mutant of tryptophan synthase. A "knock-out" allosteric enzyme., Weyand M, Schlichting I, Herde P, Marabotti A, Mozzarelli A, J Biol Chem 2002 Mar 22;277(12):10653-60. PMID:11756454

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (112 Kb) [Save to disk] Biological Unit Coordinates (1k8z.pdb1.gz) 210 Kb LPC: Ligand-Protein Contacts for 1K8Z CSU: Contacts of Structural Units for 1K8Z Likely Quarternary Molecular Structure file(s) for 1K8Z Structure Factors (653 Kb) Retrieve 1K8Z in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1K8Z from S2C, [Save to disk] Re-refined 1k8z structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1K8Z in 3D

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Visual 3D analysis of 1K8Z

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 1K8Z, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1k8za_, region A [Jmol] [rasmolscript] [script source]     - Domain d1k8zb_, 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: [1k8z_A] [1k8z_B] [1k8z] SWISS-PROT database: [P00929] [P0A2K1] Domain organization of [TRPA_SALTY] [TRPB_SALTY] by SWISSPFAM

Other resources with information on 1K8Z

Community annotation for 1K8Z at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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