1H4I

Methylobacterium extorquens methanol dehydrogenase

• PDB DOI: https://doi.org/10.2210/pdb1H4I/pdb

• Classification: DEHYDROGENASE
• Organism(s): Methylorubrum extorquens
• Mutation(s): No 


• Deposited: 2001-05-11 Released: 2001-06-14 
• Deposition Author(s): Ghosh, M., Anthony, C., Harlos, K., Goodwin, M.G., Blake, C.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.94 Å
• R-Value Free: 0.229 
• R-Value Work: 0.199 
• R-Value Observed: 0.199 

Literature

The Refined Structure of the Quinoprotein Methanol Dehydrogenase from Methylobacterium Extorquens at 1.94 A.

Ghosh, M., Anthony, C., Harlos, K., Goodwin, M.G., Blake, C.

(1995) Structure 3: 177

• PubMed: 7735834 
• DOI: https://doi.org/10.1016/s0969-2126(01)00148-4
• Primary Citation of Related Structures:  
  1H4I


• PubMed Abstract: 
  

  Methanol dehydrogenase (MDH) is a bacterial periplasmic quinoprotein; it has pyrrolo-quinoline quinone (PQQ) as its prosthetic group, requires Ca2+ for activity and uses cytochrome cL as its electron acceptor. Low-resolution structures of MDH have already been determined.

---

Organizational Affiliation: 

Laboratory of Molecular Biophysics, University of Oxford, UK.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 

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

Macromolecule Content

• Total Structure Weight: 149.44 kDa 
• Atom Count: 10,462 
• Modelled Residue Count: 1,336 
• Deposited Residue Count: 1,346 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
METHANOL DEHYDROGENASE SUBUNIT 1	A, C	599	Methylorubrum extorquens	Mutation(s): 0
UniProt
Find proteins for P16027 (Methylorubrum extorquens (strain ATCC 14718 / DSM 1338 / JCM 2805 / NCIMB 9133 / AM1)) Explore P16027  Go to UniProtKB:  P16027

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
METHANOL DEHYDROGENASE SUBUNIT 2	B, D	74	Methylorubrum extorquens	Mutation(s): 0  EC: 1.1.99.8
UniProt
Find proteins for P14775 (Methylorubrum extorquens (strain ATCC 14718 / DSM 1338 / JCM 2805 / NCIMB 9133 / AM1)) Explore P14775  Go to UniProtKB:  P14775

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PQQ	E [auth A], G [auth C]	PYRROLOQUINOLINE QUINONE C14 H6 N2 O8 MMXZSJMASHPLLR-UHFFFAOYSA-N
CA	F [auth A], H [auth C]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.94 Å
• R-Value Free: 0.229 
• R-Value Work: 0.199 
• R-Value Observed: 0.199 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 61.16	α = 86.21
b = 72.19	β = 76.09
c = 86.17	γ = 70.44

Software Package:

Software Name	Purpose
X-PLOR	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-06-14 
Deposition Author(s): Ghosh, M., Anthony, C., Harlos, K., Goodwin, M.G., Blake, C.

Revision History  

• Version 1.0: 2001-06-14
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance