1F6Y

MAD CRYSTAL STRUCTURE ANALYSIS OF METHYLTETRAHYDROFOLATE: CORRINOID/IRON-SULFUR PROTEIN METHYLTRANSFERASE (METR)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.201 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

Crystal structure of a methyltetrahydrofolate- and corrinoid-dependent methyltransferase.

Doukov, T.Seravalli, J.Stezowski, J.J.Ragsdale, S.W.

(2000) Structure Fold.Des. 8: 817-830

  • Also Cited By: 2E7F, 2OGY

  • PubMed Abstract: 
  • Methyltetrahydrofolate, corrinoid iron-sulfur protein methyltransferase (MeTr), catalyzes a key step in the Wood-Ljungdahl pathway of carbon dioxide fixation. It transfers the N5-methyl group from methyltetrahydrofolate (CH3-H4folate) to a cob(I)amid ...

    Methyltetrahydrofolate, corrinoid iron-sulfur protein methyltransferase (MeTr), catalyzes a key step in the Wood-Ljungdahl pathway of carbon dioxide fixation. It transfers the N5-methyl group from methyltetrahydrofolate (CH3-H4folate) to a cob(I)amide center in another protein, the corrinoid iron-sulfur protein. MeTr is a member of a family of proteins that includes methionine synthase and methanogenic enzymes that activate the methyl group of methyltetra-hydromethano(or -sarcino)pterin. We report the first structure of a protein in this family.


    Related Citations: 
    • Binding of (6R,S)-Methyltetrahydrofolate to Methyltransferase from Clostridium thermoaceticum: Role of Protonation of Methyltetrahydrofolate in the Mechanism of Methyl Transfer
      Seravalli, J.,Shoemaker, R.K.,Sudbeck, M.L.,Ragsdale, S.W.
      (1999) Biochemistry 38: 5736
    • Preliminary X-ray Crystallographic Study of Methyltetrahydrofolate: Corrinoid/Iron-Sulfur Protein Methyltransferase from Clostridium thermoaceticum
      Doukov, T.I.,Zhao, S.,Ross II, C.R.,Roberts, D.L.,Kim, J.J.,Ragsdale, S.W.,Stezowski, J.J.
      (1995) Acta Crystallogr.,Sect.D 51: 1092
    • The Reductive Acetyl Coenzyme A Pathway: Sequence and Heterologous Expression of Active Methyltetrahydrofolate:Corrinoid/Iron-Sulfur Protein Methyltransferase from Clostridium thermoaceticum
      Roberts, D.L.,Zhao, S.,Doukov, T.,Ragsdale, S.W.
      (1994) J.BACTERIOL. 176: 6127
    • Mechanism of Transfer of the Methyl Group from (6S)-Methyltetrahydrofolate to the Corrinoid/Iron-Sulfur Protein Catalyzed by the Methyltransferase from Clostridium thermoaceticum: A Key Step in the Wood-Ljungdahl Pathway of Acetyl-CoA Synthesis
      Seravalli, J.,Zhao, S.,Ragsdale, S.W.
      (1999) Biochemistry 38: 5728


    Organizational Affiliation

    Department of Chemistry, University of Nebraska-Lincoln, 68503, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
5-METHYLTETRAHYDROFOLATE CORRINOID/IRON SULFUR PROTEIN METHYLTRANSFERASE
A, B
262Moorella thermoaceticaGene Names: acsE
EC: 2.1.1.258
Find proteins for Q46389 (Moorella thermoacetica)
Go to UniProtKB:  Q46389
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.201 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 65.000α = 90.00
b = 89.412β = 90.00
c = 115.385γ = 90.00
Software Package:
Software NamePurpose
SHELXL-97refinement
SHELXSphasing
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-08-31
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Source and taxonomy, Version format compliance
  • Version 1.3: 2017-10-04
    Type: Refinement description
  • Version 1.4: 2018-01-31
    Type: Database references