1SCH

PEANUT PEROXIDASE

• PDB DOI:  https://doi.org/10.2210/pdb1SCH/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Arachis hypogaea
• Mutation(s): No 


• Deposited: 1996-01-23 Released: 1996-07-11 
• Deposition Author(s): Schuller, D.J., Poulos, T.L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.56 Å
• R-Value Free: 0.262 
• R-Value Work: 0.199 
• R-Value Observed: 0.199 

Literature

The crystal structure of peanut peroxidase.

Schuller, D.J., Ban, N., Huystee, R.B., McPherson, A., Poulos, T.L.

(1996) Structure 4: 311-321

• PubMed: 8805539 
• DOI: https://doi.org/10.1016/s0969-2126(96)00035-4
• Primary Citation of Related Structures:  
  1SCH


• PubMed Abstract: 
  

Peroxidases catalyze a wide variety of peroxide-dependent oxidations. Based on sequence alignments, heme peroxidases have been divided into three classes. Crystal structures are available for peroxidases of classes I and II, but until now no structure has been determined for class III, the classical extracellular plant peroxidases.

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Organizational Affiliation: 

Department of Molecular Biology & Biochemistry, University of California, Irvine, CA 92717-3900, USA.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 64.03 kDa 
• Atom Count: 4,579 
• Modelled Residue Count: 588 
• Deposited Residue Count: 588 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PEANUT PEROXIDASE, MAJOR CATIONIC ISOZYME	A, B	294	Arachis hypogaea	Mutation(s): 0  Gene Names: PNC1 EC: 1.11.1.7
UniProt
Find proteins for P22195 (Arachis hypogaea) Explore P22195  Go to UniProtKB:  P22195

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEM	E [auth A], I [auth B]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L
NAG	F [auth B]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
CA	C [auth A], D [auth A], G [auth B], H [auth B]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
PCA	A, B	L-PEPTIDE LINKING	C5 H7 N O3		GLN

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.56 Å
• R-Value Free: 0.262 
• R-Value Work: 0.199 
• R-Value Observed: 0.199 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 48.1	α = 90
b = 97.2	β = 90
c = 146.2	γ = 90

Software Package:

Software Name	Purpose
HOWARD	data collection
NIELSEN	data collection
X-PLOR	model building
X-PLOR	refinement
XENGEN	data reduction
NIELSEN	data reduction
XUONG)	data reduction
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1996-07-11 
Deposition Author(s): Schuller, D.J., Poulos, T.L.

Revision History  

• Version 1.0: 1996-07-11
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 2.0: 2019-12-25
  Changes: Derived calculations, Other, Polymer sequence
• Version 2.1: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Derived calculations, Structure summary