1K3U

CRYSTAL STRUCTURE OF WILD-TYPE TRYPTOPHAN SYNTHASE COMPLEXED WITH N-[1H-INDOL-3-YL-ACETYL]ASPARTIC ACID

Structural Biology Knowledgebase: 1K3U SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.188
  • R-Value Work: 0.153

Literature

Macromolecules
Sequence Display for 1K3U

Classification: LYASE

Total Structure Weight: 72047.47

Macromolecule Entities
Molecule Chains Length Organism Details
Tryptophan Synthase Alpha Chain A 268 Salmonella enterica EC#: 4.2.1.20 IUBMB
Gene Name(s): trpA STM1727
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG
Tryptophan Synthase Beta Chain B 396 Salmonella enterica EC#: 4.2.1.20 IUBMB
Gene Name(s): trpB STM1726
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 3 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
IAD
Query on IAD

A N-[1H-INDOL-3-YL-ACETYL]ASPARTIC ACID
C14 H14 N2 O5
VAFNMNRKDDAKRM-NSHDSACASA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
PLP
Query on PLP

B PYRIDOXAL-5'-PHOSPHATE
VITAMIN B6 Phosphate (Synonym)
C8 H10 N O6 P
NGVDGCNFYWLIFO-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
NA
Query on NA

B SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.188
  • R-Value Work: 0.153
  • Space Group: C 1 2 1

Unit Cell:

Length (Å) Angle (°)
a = 182.41 α = 90.00
b = 59.72 β = 94.52
c = 67.18 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2001-10-04
  • Released Date: 2002-07-03
  • Deposition author(s): Weyand, M., Schlichting, I., Marabotti, A., Mozzarelli, A.

Revision History

  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4
  • 2011-07-13
    Type: Non-polymer description | Details: chemical name/synonym update