1KTW

IOTA-CARRAGEENASE COMPLEXED TO IOTA-CARRAGEENAN FRAGMENTS

Structural Biology Knowledgebase: 1KTW SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.0 Å
  • R-Value Free: 0.238
  • R-Value Work: 0.203

Literature

Macromolecules
Sequence Display for 1KTW

Classification: HYDROLASE

Total Structure Weight: 105872.09

Macromolecule Entities
Molecule Chains Length Organism Details
IOTA-CARRAGEENASE A, B 464 Alteromonas sp. atcc 43554 EC#: 3.2.1.157 IUBMB
Fragment: CATALYTIC DOMAIN, RESIDUES 28-491
Gene Name(s): cgiA
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 5 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
G4S
Query on G4S

A 4-O-sulfo-beta-D-galactopyranose
C6 H12 O9 S
LOTQRUGOUKUSEY-DGPNFKTASA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
DGS
Query on DGS

A 3,6-ANHYDRO-D-GALACTOSE-2-SULFATE
C6 H10 O8 S
BBGPRYFPTZDJIZ-PHYPRBDBSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
CA
Query on CA

A, B CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
CL
Query on CL

A, B CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
NA
Query on NA

A, 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: 2.0 Å
  • R-Value Free: 0.238
  • R-Value Work: 0.203
  • Space Group: P 1 21 1
  • Electron Density Server: EDS EDS

Unit Cell:

Length (Å) Angle (°)
a = 54.73 α = 90.00
b = 122.31 β = 90.99
c = 91.94 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2002-01-18
  • Released Date: 2003-06-10
  • Deposition author(s): Michel, G., Kahn, R., Dideberg, O.

Revision History

  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4