3D00

Crystal structure of a tungsten formylmethanofuran dehydrogenase subunit e (fmde)-like protein (syn_00638) from syntrophus aciditrophicus at 1.90 A resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.233 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structures of three members of Pfam PF02663 (FmdE) implicated in microbial methanogenesis reveal a conserved alpha+beta core domain and an auxiliary C-terminal treble-clef zinc finger.

Axelrod, H.L.Das, D.Abdubek, P.Astakhova, T.Bakolitsa, C.Carlton, D.Chen, C.Chiu, H.J.Clayton, T.Deller, M.C.Duan, L.Ellrott, K.Farr, C.L.Feuerhelm, J.Grant, J.C.Grzechnik, A.Han, G.W.Jaroszewski, L.Jin, K.K.Klock, H.E.Knuth, M.W.Kozbial, P.Krishna, S.S.Kumar, A.Lam, W.W.Marciano, D.McMullan, D.Miller, M.D.Morse, A.T.Nigoghossian, E.Nopakun, A.Okach, L.Puckett, C.Reyes, R.Sefcovic, N.Tien, H.J.Trame, C.B.van den Bedem, H.Weekes, D.Wooten, T.Xu, Q.Hodgson, K.O.Wooley, J.Elsliger, M.A.Deacon, A.M.Godzik, A.Lesley, S.A.Wilson, I.A.

(2010) Acta Crystallogr.,Sect.F 66: 1335-1346

  • DOI: 10.1107/S1744309110020166
  • Primary Citation of Related Structures:  2GLZ, 2GVI

  • PubMed Abstract: 
  • Examination of the genomic context for members of the FmdE Pfam family (PF02663), such as the protein encoded by the fmdE gene from the methanogenic archaeon Methanobacterium thermoautotrophicum, indicates that 13 of them are co-transcribed with gene ...

    Examination of the genomic context for members of the FmdE Pfam family (PF02663), such as the protein encoded by the fmdE gene from the methanogenic archaeon Methanobacterium thermoautotrophicum, indicates that 13 of them are co-transcribed with genes encoding subunits of molybdenum formylmethanofuran dehydrogenase (EC 1.2.99.5), an enzyme that is involved in microbial methane production. Here, the first crystal structures from PF02663 are described, representing two bacterial and one archaeal species: B8FYU2_DESHY from the anaerobic dehalogenating bacterium Desulfitobacterium hafniense DCB-2, Q2LQ23_SYNAS from the syntrophic bacterium Syntrophus aciditrophicus SB and Q9HJ63_THEAC from the thermoacidophilic archaeon Thermoplasma acidophilum. Two of these proteins, Q9HJ63_THEAC and Q2LQ23_SYNAS, contain two domains: an N-terminal thioredoxin-like α+β core domain (NTD) consisting of a five-stranded, mixed β-sheet flanked by several α-helices and a C-terminal zinc-finger domain (CTD). B8FYU2_DESHY, on the other hand, is composed solely of the NTD. The CTD of Q9HJ63_THEAC and Q2LQ23_SYNAS is best characterized as a treble-clef zinc finger. Two significant structural differences between Q9HJ63_THEAC and Q2LQ23_SYNAS involve their metal binding. First, zinc is bound to the putative active site on the NTD of Q9HJ63_THEAC, but is absent from the NTD of Q2LQ23_SYNAS. Second, whereas the structure of the CTD of Q2LQ23_SYNAS shows four Cys side chains within coordination distance of the Zn atom, the structure of Q9HJ63_THEAC is atypical for a treble-cleft zinc finger in that three Cys side chains and an Asp side chain are within coordination distance of the zinc.


    Organizational Affiliation

    Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tungsten formylmethanofuran dehydrogenase subunit E
A
191Syntrophus aciditrophicus (strain SB)N/A
Find proteins for Q2LQ23 (Syntrophus aciditrophicus (strain SB))
Go to UniProtKB:  Q2LQ23
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download SDF File 
Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

Unit Cell:
Length (Å)Angle (°)
a = 54.356α = 90.00
b = 54.356β = 90.00
c = 136.719γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
MolProbitymodel building
SCALAdata scaling
MAR345data collection
PHENIXrefinement
SHELXphasing
MOSFLMdata reduction
autoSHARPphasing
PDB_EXTRACTdata extraction
SHELXDphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-05-20
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance
  • Version 1.2: 2012-10-24
    Type: Database references
  • Version 1.3: 2017-10-25
    Type: Author supporting evidence, Refinement description