2GVI

Crystal structure of a putative formylmethanofuran dehydrogenase subunit e (ta1109) from thermoplasma acidophilum at 1.87 A resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.87 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.190 
  • R-Value Observed: 0.191 

wwPDB Validation   3D Report Full Report


This is version 1.4 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 Struct Biol Cryst Commun 66: 1335-1346

  • DOI: https://doi.org/10.1107/S1744309110020166
  • Primary Citation of Related Structures:  
    2GLZ, 2GVI, 3D00

  • 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 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:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
conserved hypothetical protein204Thermoplasma acidophilumMutation(s): 6 
Gene Names: 10640422
UniProt
Find proteins for Q9HJ63 (Thermoplasma acidophilum (strain ATCC 25905 / DSM 1728 / JCM 9062 / NBRC 15155 / AMRC-C165))
Explore Q9HJ63 
Go to UniProtKB:  Q9HJ63
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9HJ63
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download Ideal Coordinates CCD File 
B [auth A],
C [auth A],
D [auth A],
E [auth A],
F [auth A]
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
EDO
Query on EDO

Download Ideal Coordinates CCD File 
H [auth A]
I [auth A]
J [auth A]
K [auth A]
L [auth A]
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth A],
M [auth A]
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
ACY
Query on ACY

Download Ideal Coordinates CCD File 
N [auth A]
O [auth A]
P [auth A]
Q [auth A]
R [auth A]
N [auth A],
O [auth A],
P [auth A],
Q [auth A],
R [auth A],
S [auth A],
T [auth A],
U [auth A]
ACETIC ACID
C2 H4 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-N
UNL
Query on UNL

Download Ideal Coordinates CCD File 
G [auth A]Unknown ligand
QTBSBXVTEAMEQO-UHFFFAOYSA-N
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 78.68α = 90
b = 97.65β = 90
c = 75.27γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XSCALEdata scaling
PDB_EXTRACTdata extraction
XDSdata reduction
SHELXDphasing
autoSHARPphasing
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-06-13
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Derived calculations, Version format compliance
  • Version 1.3: 2012-10-24
    Changes: Database references
  • Version 1.4: 2023-01-25
    Changes: Database references, Derived calculations