1ENC

CRYSTAL STRUCTURES OF THE BINARY CA2+ AND PDTP COMPLEXES AND THE TERNARY COMPLEX OF THE ASP 21->GLU MUTANT OF STAPHYLOCOCCAL NUCLEASE. IMPLICATIONS FOR CATALYSIS AND LIGAND BINDING

Structural Biology Knowledgebase: 1ENC SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Observed: 0.174

Literature

Macromolecules
Sequence Display for 1ENC

Classification: HYDROLASE(PHOSPHORIC DIESTER)

Total Structure Weight: 17299.79

Macromolecule Entities
Molecule Chains Length Organism Details
STAPHYLOCOCCAL NUCLEASE A 149 Staphylococcus aureus EC#: 3.1.31.1 IUBMB
Mutation: D21E
Gene Name(s): nuc
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

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

A THYMIDINE-3',5'-DIPHOSPHATE
C10 H16 N2 O11 P2
CSNCBOPUCJOHLS-XLPZGREQSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
CA
Query on CA

A CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Observed: 0.174
  • Space Group: P 41

Unit Cell:

Length (Å) Angle (°)
a = 48.05 α = 90.00
b = 48.05 β = 90.00
c = 63.00 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 1994-02-14
  • Released Date: 1994-05-31
  • Deposition author(s): Libson, A., Gittis, A., Lattman, E.E.

Revision History

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