1MMO

CRYSTAL STRUCTURE OF A BACTERIAL NON-HAEM IRON HYDROXYLASE THAT CATALYSES THE BIOLOGICAL OXIDATION OF METHANE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Work: 0.170 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure of a bacterial non-haem iron hydroxylase that catalyses the biological oxidation of methane.

Rosenzweig, A.C.Frederick, C.A.Lippard, S.J.Nordlund, P.

(1993) Nature 366: 537-543

  • DOI: 10.1038/366537a0

  • PubMed Abstract: 
  • The 2.2 A crystal structure of the 251K alpha 2 beta 2 gamma 2 dimeric hydroxylase protein of methane monooxygenase from Methylococcus capsulatus (Bath) reveals the geometry of the catalytic di-iron core. The two iron atoms are bridged by exogenous h ...

    The 2.2 A crystal structure of the 251K alpha 2 beta 2 gamma 2 dimeric hydroxylase protein of methane monooxygenase from Methylococcus capsulatus (Bath) reveals the geometry of the catalytic di-iron core. The two iron atoms are bridged by exogenous hydroxide and acetate ligands and further coordinated by four glutamate residues, two histidine residues and a water molecule. The dinuclear iron centre lies in a hydrophobic active-site cavity for binding methane. An extended canyon runs between alpha beta pairs, which have many long alpha-helices, for possible docking of the reductase and coupling proteins required for catalysis.


    Organizational Affiliation

    Department of Chemistry, Massachusetts Institute of Technology, Cambridge 02139.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
METHANE MONOOXYGENASE HYDROLASE (BETA CHAIN)
B, C
384Methylococcus capsulatus (strain ATCC 33009 / NCIMB 11132 / Bath)Gene Names: mmoY
EC: 1.14.13.25
Find proteins for P18798 (Methylococcus capsulatus (strain ATCC 33009 / NCIMB 11132 / Bath))
Go to UniProtKB:  P18798
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
METHANE MONOOXYGENASE HYDROLASE (ALPHA CHAIN)
D, E
512Methylococcus capsulatus (strain ATCC 33009 / NCIMB 11132 / Bath)Gene Names: mmoX
EC: 1.14.13.25
Find proteins for P22869 (Methylococcus capsulatus (strain ATCC 33009 / NCIMB 11132 / Bath))
Go to UniProtKB:  P22869
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
METHANE MONOOXYGENASE HYDROLASE (GAMMA CHAIN)
G, H
162Methylococcus capsulatus (strain ATCC 33009 / NCIMB 11132 / Bath)Gene Names: mmoZ
EC: 1.14.13.25
Find proteins for P11987 (Methylococcus capsulatus (strain ATCC 33009 / NCIMB 11132 / Bath))
Go to UniProtKB:  P11987
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FE
Query on FE

Download SDF File 
Download CCD File 
D, E
FE (III) ION
Fe
VTLYFUHAOXGGBS-UHFFFAOYSA-N
 Ligand Interaction
ACY
Query on ACY

Download SDF File 
Download CCD File 
D, E
ACETIC ACID
C2 H4 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Work: 0.170 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 62.600α = 90.00
b = 110.100β = 90.00
c = 333.500γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORphasing
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1995-02-27
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-11-29
    Type: Derived calculations, Other