1A5A Lyase date Feb 12, 1998
title Cryo-Crystallography Of A True Substrate, Indole-3-Glycerol Bound To A Mutant (Alphad60n) Tryptophan Synthase Alpha2bet Reveals The Correct Orientation Of Active Site Alpha Glu 49
authors S.Rhee, E.W.Miles, D.R.Davies
compound source
Molecule: Tryptophan Synthase (Alpha Chain)
Chain: A
Ec: 4.2.1.20
Engineered: Yes
Mutation: Yes
Organism_scientific: Salmonella Typhimurium
Organism_taxid: 602
Cell_line: Cb149
Gene: Trpatrpb
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_cell_line: Cb149
Expression_system_plasmid: Pstb7
Expression_system_gene: Trpatrpb

Molecule: Tryptophan Synthase (Beta Chain)
Chain: B
Ec: 4.2.1.20
Engineered: Yes

Organism_scientific: Salmonella Typhimurium
Organism_taxid: 602
Cell_line: Cb149
Gene: Trpatrpb
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_cell_line: Cb149
Expression_system_plasmid: Pstb7
Expression_system_gene: Trpatrpb
symmetry Space Group: C 1 2 1
R_factor 0.238 R_Free 0.298
crystal
cell
length a length b length c angle alpha angle beta angle gamma
183.500 59.400 67.300 90.00 94.60 90.00
method X-Ray Diffractionresolution 1.90 Å
ligand K, PLP enzyme Lyase E.C.4.2.1.20 BRENDA
related structures by homologous chain: 1BEU, 1CW2
Gene
Ontology
ChainFunctionProcessComponent
A


B


Primary referenceCryo-crystallography of a true substrate, indole-3-glycerol phosphate, bound to a mutant (alphaD60N) tryptophan synthase alpha2beta2 complex reveals the correct orientation of active site alphaGlu49., Rhee S, Miles EW, Davies DR, J Biol Chem 1998 Apr 10;273(15):8553-5. PMID:9535826
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (111 Kb) [Save to disk]
  • Biological Unit Coordinates (1a5a.pdb1.gz) 212 Kb
  • LPC: Ligand-Protein Contacts for 1A5A
  • CSU: Contacts of Structural Units for 1A5A
  • Likely Quarternary Molecular Structure file(s) for 1A5A
  • Structure Factors (317 Kb)
  • Retrieve 1A5A in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1A5A from S2C, [Save to disk]
  • Re-refined 1a5a structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1A5A 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 1A5A
  • Cartoon representation from PDB Cartoon
  • 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
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1A5A, from MSDmotif at EBI
  • Genome occurence of 1A5A's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1a5aa_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1a5ab_, region B [Jmol] [rasmolscript] [script source]
  • Fold representative 1a5a from FSSP and Dali (Families of Structurally Similar Proteins)
  • 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: [1a5a_A] [1a5a] [1a5a_B]
  • SWISS-PROT database: [P00929] [P0A2K1]
  • Domain organization of [TRPA_SALTY] [TRPB_SALTY] by SWISSPFAM
  • Other resources with information on 1A5A
  • Community annotation for 1A5A at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Domain movements in 1A5A from the Database of Macromolecular Movements.
  • Images from IMB Jena Image Library of Biological Macromolecules.

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