1K8X Lyase date Oct 26, 2001
title Crystal Structure Of Alphat183v Mutant Of Tryptophan Synthas Salmonella Typhimurium
authors V.Kulik, M.Weyand, R.Siedel, D.Niks, D.Arac, M.F.Dunn, I.Schlichti
compound source
Molecule: Tryptophan Synthase, Alpha Protein
Chain: A
Ec: 4.2.1.20
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 Protein
Chain: B
Ec: 4.2.1.20
Engineered: Yes

Organism_scientific: Salmonella Typhimurium
Organism_taxid: 99287
Strain: Lt2
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_plasmid: Pstb7
symmetry Space Group: C 1 2 1
R_factor 0.192 R_Free 0.232
crystal
cell
length a length b length c angle alpha angle beta angle gamma
182.220 59.990 67.070 90.00 94.68 90.00
method X-Ray Diffractionresolution 1.90 Å
ligand NA, PLP enzyme Lyase E.C.4.2.1.20 BRENDA
related structures by homologous chain: 1K7F, 1UBS
Gene
Ontology
ChainFunctionProcessComponent
A


B


Primary referenceOn 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] (108 Kb) [Save to disk]
  • Biological Unit Coordinates (1k8x.pdb1.gz) 205 Kb
  • LPC: Ligand-Protein Contacts for 1K8X
  • CSU: Contacts of Structural Units for 1K8X
  • Likely Quarternary Molecular Structure file(s) for 1K8X
  • Structure Factors (395 Kb)
  • Retrieve 1K8X in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1K8X from S2C, [Save to disk]
  • Re-refined 1k8x structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1K8X 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 1K8X
  • 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 1K8X, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1k8xa_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1k8xb_, 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: [1k8x_A] [1k8x_B] [1k8x]
  • SWISS-PROT database: [P00929] [P0A2K1]
  • Domain organization of [TRPA_SALTY] [TRPB_SALTY] by SWISSPFAM
  • Other resources with information on 1K8X
  • Community annotation for 1K8X at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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