Brand  (β version)

PDB ID: 1ASQ

Hetero Atom Contents

  The number of atoms exceeds 100,000.
  So, it can not be displayed here.

Select unit:

Select hetatm:   

close
information
centroid:
interaction residue:

Select chain:   Sequence  

Data format:   

Color scheme of protein:

Ligands
Code Name Style Show Link
CU Copper (II) ion PoSSuM
OH Hydroxide ion PoSSuM
AZI Azide ion PoSSuM
Non-standard Residues
Code Name Show
Glycosylation
Code Name Emphasize
NAG 2-acetamido-2-deoxy-beta-D-glucopyranose
Modification
Code Name Show

Structure summary

Code : 1ASQ   PDBj   RCSB PDB   PDBe
Header : OXIDOREDUCTASE
Title : X-RAY STRUCTURES AND MECHANISTIC IMPLICATIONS OF THREE FUNCTIONAL DERIVATIVES OF ASCORBATE OXIDASE FROM ZUCCHINI: REDUCED-, PEROXIDE-, AND AZIDE-FORMS
Release Data : 1994-01-31
Compound :
mol_id molecule chains
1 ASCORBATE OXIDASE A,B
ec: 1.10.3.3
Source :
mol_id organism_scientific organism_common
1 Cucurbita pepo  (taxid:3665) Zucchini
strain: var. melopepo
Authors : Messerschmidt, A., Luecke, H., Huber, R.
Keywords : OXIDOREDUCTASE
Exp. method : X-RAY DIFFRACTION ( 2.32 Å )
Citation :

X-ray structures and mechanistic implications of three functional derivatives of ascorbate oxidase from zucchini. Reduced, peroxide and azide forms.

Messerschmidt, A.,Luecke, H.,Huber, R.
(1993)  J.Mol.Biol.  230 : 997 - 1014

PubMed: 8478945
DOI: 10.1006/jmbi.1993.1215

Refined Crystal Structure of Ascorbate Oxidase at 1.9 Angstroms Resolution

Messerschmidt, A.,Ladenstein, R.,Huber, R.  et al.
(1992)  J.Mol.Biol.  224 : 179

X-Ray Crystal Structure of the Blue Oxidase Ascorbate Oxidase from Zucchini. Analysis of the Polypeptide Fold and Model of the Copper Sites and Ligands

Messerschmidt, A.,Rossi, A.,Ladenstein, R.  et al.
(1989)  J.Mol.Biol.  206 : 513

Reaction

Chain : A, B
UniProt : P37064 (ASO_CUCPM)
Reaction: EC: Evidence:
Physiological Direction:
4 L-ascorbate + O2 = 4 monodehydro-L-ascorbate radical + 2 H2O 1.10.3.3 -
-
Cofactor: Evidence: Note:
Cu cation - Binds 4 Cu cations per monomer. The Cu cations are bound as 3 distinct Cu centers known as type 1 or blue, type 2 or normal, and type 3 or coupled binuclear.