6ISS

Lignin peroxidase H8 triple mutant S49C/A67C/H239

• PDB DOI: https://doi.org/10.2210/pdb6ISS/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Phanerochaete chrysosporium RP-78
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2018-11-19 Released: 2019-11-20 
• Deposition Author(s): Seo, H., Son, H., Kim, K.-J.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.53 Å
• R-Value Free: 0.196 
• R-Value Work: 0.170 
• R-Value Observed: 0.171 

Literature

Extra disulfide and ionic salt bridge improves the thermostability of lignin peroxidase H8 under acidic condition

Son, H., Seo, H., Han, S., Kim, S., Thanh, L., Khan, M., Sung, H., Kang, S.H., Kim, K.J., Kim, Y.

(2021) Enzyme Microb Technol 148: 109803

• DOI: https://doi.org/10.1016/j.enzmictec.2021.109803

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: SAXS

Biological Assembly 2  

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

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 76.46 kDa 
• Atom Count: 5,867 
• Modelled Residue Count: 692 
• Deposited Residue Count: 702 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ligninase H8	A, B [auth G]	351	Phanerochaete chrysosporium RP-78	Mutation(s): 4  Gene Names: LPOA EC: 1.11.1.14
UniProt
Find proteins for P06181 (Phanerodontia chrysosporium) Explore P06181  Go to UniProtKB:  P06181

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEM	C [auth A], F [auth G]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L
CA	D [auth A], E [auth A], G, H [auth G]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
HTR	A, B [auth G]	L-PEPTIDE LINKING	C11 H12 N2 O3		TRP

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.53 Å
• R-Value Free: 0.196 
• R-Value Work: 0.170 
• R-Value Observed: 0.171 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 72.959	α = 90
b = 93.74	β = 90
c = 227.371	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2019-11-20 
Deposition Author(s): Seo, H., Son, H., Kim, K.-J.

Revision History  

• Version 1.0: 2019-11-20
  Type: Initial release
  
• Version 1.1: 2021-06-16
  Changes: Database references, Derived calculations
• Version 1.2: 2023-11-22
  Changes: Data collection, Database references, Refinement description