1HA5

Structural features of a zinc-binding site in the superantigen streptococcal pyrogenic exotoxin A (SpeA1): implications for MHC class II recognition.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.82 Å
  • R-Value Free: 0.283
  • R-Value Work: 0.214

Literature

Macromolecules
Sequence Display for 1HA5

Classification: TOXIN

Total Structure Weight: 101767.72

Macromolecule Entities
Molecule Chains Length Organism Details
STREPTOCOCCAL PYOGENIC EXOTOXIN A1 A, B, C, D 218 Streptococcus pyogenes Fragment: RESIDUES 33-250
Gene Name(s): speA
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 1 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
ZN
Query on ZN

A, B, C, D ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.82 Å
  • R-Value Free: 0.283
  • R-Value Work: 0.214
  • Space Group: P 21 21 2

Unit Cell:

Length (Å) Angle (°)
a = 126.95 α = 90.00
b = 101.32 β = 90.00
c = 82.02 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2001-03-28
  • Released Date: 2002-04-03
  • Deposition author(s): Baker, M.D., Gutman, D.M., Papageorgiou, A.C., Collins, C.M., Acharya, K.R.

Revision History

  • Version 1_0: 2002-04-03

    Type: Initial release

  • Version 1_1: 2011-05-07

    Type: Version format compliance

  • Version 1_2: 2011-07-13

    Type: Version format compliance