2MTA

CRYSTAL STRUCTURE OF A TERNARY ELECTRON TRANSFER COMPLEX BETWEEN METHYLAMINE DEHYDROGENASE, AMICYANIN AND A C-TYPE CYTOCHROME


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Work: 0.179 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of an electron transfer complex: methylamine dehydrogenase, amicyanin, and cytochrome c551i.

Chen, L.Durley, R.C.Mathews, F.S.Davidson, V.L.

(1994) Science 264: 86-90

  • Also Cited By: 2GC7, 2GC4

  • PubMed Abstract: 
  • The crystal structure of a ternary protein complex has been determined at 2.4 angstrom resolution. The complex is composed of three electron transfer proteins from Paracoccus denitrificans, the quinoprotein methylamine dehydrogenase, the blue copper ...

    The crystal structure of a ternary protein complex has been determined at 2.4 angstrom resolution. The complex is composed of three electron transfer proteins from Paracoccus denitrificans, the quinoprotein methylamine dehydrogenase, the blue copper protein amicyanin, and the cytochrome c551i. The central region of the c551i is folded similarly to several small bacterial c-type cytochromes; there is a 45-residue extension at the amino terminus and a 25-residue extension at the carboxyl terminus. The methylamine dehydrogenase-amicyanin interface is largely hydrophobic, whereas the amicyanin-cytochrome interface is more polar, with several charged groups present on each surface. Analysis of the simplest electron transfer pathways between the redox partners points out the importance of other factors such as energetics in determining the electron transfer rates.


    Related Citations: 
    • Three-Dimensional Structure of the Quinoprotein Methylamine Dehydrogenase from Paracoccus Denitrificans Determined by Molecular Replacement at 2.8 Angstroms Resolution
      Chen, L.,Mathews, F.S.,Davidson, V.L.,Huizinga, E.G.,Vellieux, F.M.D.,Hol, W.G.J.
      (1992) Proteins 14: 288
    • Crystal Structure Analysis of Amicyanin and Apoamicyanin from Paraccus Denitrificans at 2.0 Angstroms and 1.8 Angstroms Resolution
      Durley, R.,Chen, L.,Lim, L.W.,Mathews, F.S.,Davidson, V.L.
      (1993) Protein Sci. 2: 739
    • Preliminary Crystal Structure Studies of a Ternary Electron Transfer Complex between a Quinoprotein, a Blue Copper Protein, and a C-Type Cytochrome
      Chen, L.,Mathews, F.S.,Davidson, V.L.,Tegoni, M.,Rivetti, C.,Rossi, G.L.
      (1993) Protein Sci. 2: 147
    • Crystal Structure of an Electron-Transfer Complex between Methylamine Dehydrogenase and Amicyanin
      Chen, L.,Durley, R.,Poliks, B.J.,Hamada, K.,Chen, Z.,Mathews, F.S.,Davidson, V.L.,Satow, Y.,Huizinga, E.,Vellieux, F.M.D.,Hol, W.G.J.
      (1992) Biochemistry 31: 4959


    Organizational Affiliation

    Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St. Louis, MO 63110.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
METHYLAMINE DEHYDROGENASE (HEAVY SUBUNIT)
H
373Paracoccus denitrificansMutation(s): 0 
Gene Names: mauB
EC: 1.4.9.1
Find proteins for P29894 (Paracoccus denitrificans)
Go to UniProtKB:  P29894
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
METHYLAMINE DEHYDROGENASE (LIGHT SUBUNIT)
L
125Paracoccus denitrificansMutation(s): 0 
Gene Names: mauA
EC: 1.4.9.1
Find proteins for P22619 (Paracoccus denitrificans)
Go to UniProtKB:  P22619
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
AMICYANIN
A
105Paracoccus denitrificansMutation(s): 0 
Gene Names: mauC (ami)
Find proteins for P22364 (Paracoccus denitrificans)
Go to UniProtKB:  P22364
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
CYTOCHROME C551I
C
147Paracoccus denitrificansMutation(s): 0 
Gene Names: moxG
Find proteins for P29899 (Paracoccus denitrificans)
Go to UniProtKB:  P29899
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

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Download CCD File 
H
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
HEM
Query on HEM

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Download CCD File 
C
PROTOPORPHYRIN IX CONTAINING FE
HEME
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
CU
Query on CU

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Download CCD File 
A
COPPER (II) ION
Cu
JPVYNHNXODAKFH-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
TRQ
Query on TRQ
L
L-PEPTIDE LINKINGC11 H10 N2 O4TRP
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Work: 0.179 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 148.810α = 90.00
b = 68.850β = 90.00
c = 187.180γ = 90.00
Software Package:
Software NamePurpose
X-PLORphasing
X-PLORrefinement
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance