1FI1

FhuA in complex with lipopolysaccharide and rifamycin CGP4832


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.233 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Active transport of an antibiotic rifamycin derivative by the outer-membrane protein FhuA.

Ferguson, A.D.Kodding, J.Walker, G.Bos, C.Coulton, J.W.Diederichs, K.Braun, V.Welte, W.

(2001) Structure 9: 707-716


  • PubMed Abstract: 
  • FhuA, an integral membrane protein of Escherichia coli, actively transports ferrichrome and the structurally related antibiotic albomycin across the outer membrane. The transport is coupled to the proton motive force, which energizes FhuA through the ...

    FhuA, an integral membrane protein of Escherichia coli, actively transports ferrichrome and the structurally related antibiotic albomycin across the outer membrane. The transport is coupled to the proton motive force, which energizes FhuA through the inner-membrane protein TonB. FhuA also transports the semisynthetic rifamycin derivative CGP 4832, although the chemical structure of this antibiotic differs markedly from that of ferric hydroxamates.


    Related Citations: 
    • A conserved structural motif for lipopolysaccharide recognition by procaryotic and eucaryotic proteins
      Ferguson, A.D.,Welte, W.,Hofmann, E.,Lindner, B.,Holst, O.,Coulton, J.W.,Diederichs, K.
      (2000) Structure 8: 585
    • Crystal structure of the antibiotic albomycin in complex with the outer membrane transporter FhuA
      Ferguson, A.D.,Braun, V.,Fiedler, H.-P.,Coulton, J.W.,Diederichs, K.,Welte, W.
      (2000) Protein Sci. 9: 956
    • Siderophore-mediated iron transport: Crystal structure of FhuA with bound lipopolysaccharide
      Ferguson, A.D.,Hofmann, E.,Coulton, J.W.,Diederichs, K.,Welte, W.
      (1998) Science 282: 2215


    Organizational Affiliation

    Fakultät für Biologie, Universität Konstanz, D-78457, Konstanz, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FERRICHROME-IRON RECEPTOR
A
707Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: fhuA (tonA)
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: BETA-BARREL
Sub Group: 
Beta-Barrel Membrane Proteins: Monomeric/Dimeric
Protein: 
FhuA, Ferrichrome-iron receptor without ligand
Find proteins for P06971 (Escherichia coli (strain K12))
Go to UniProtKB:  P06971
Small Molecules
Ligands 14 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

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A
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
RIF
Query on RIF

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A
RIFAMYCIN CGP 4832
C49 H65 N3 O15
CHVBGOATCBIEAJ-XFPQHQHISA-N
 Ligand Interaction
NA
Query on NA

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A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
DDQ
Query on DDQ

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A
DECYLAMINE-N,N-DIMETHYL-N-OXIDE
C12 H27 N O
ZRKZFNZPJKEWPC-UHFFFAOYSA-N
 Ligand Interaction
GLC
Query on GLC

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A
ALPHA-D-GLUCOSE
C6 H12 O6
WQZGKKKJIJFFOK-DVKNGEFBSA-N
 Ligand Interaction
DPO
Query on DPO

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A
DIPHOSPHATE
O7 P2
XPPKVPWEQAFLFU-UHFFFAOYSA-J
 Ligand Interaction
MG
Query on MG

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A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
FTT
Query on FTT

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A
3-HYDROXY-TETRADECANOIC ACID
3-HYDROXY-MYRISTIC ACID
C14 H28 O3
ATRNZOYKSNPPBF-CYBMUJFWSA-N
 Ligand Interaction
GCN
Query on GCN

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A
3-DEOXY-D-GLUCOSAMINE
C6 H13 N O4
SNDZDGQLFKEBLF-MOJAZDJTSA-N
 Ligand Interaction
PA1
Query on PA1

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A
2-amino-2-deoxy-alpha-D-glucopyranose
C6 H13 N O5
MSWZFWKMSRAUBD-UKFBFLRUSA-N
 Ligand Interaction
KDO
Query on KDO

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A
3-DEOXY-D-MANNO-OCT-2-ULOSONIC ACID
C8 H14 O8
NNLZBVFSCVTSLA-HXUQBWEZSA-N
 Ligand Interaction
NI
Query on NI

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A
NICKEL (II) ION
Ni
VEQPNABPJHWNSG-UHFFFAOYSA-N
 Ligand Interaction
GLA
Query on GLA

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A
ALPHA D-GALACTOSE
C6 H12 O6
WQZGKKKJIJFFOK-PHYPRBDBSA-N
 Ligand Interaction
GMH
Query on GMH

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A
L-GLYCERO-D-MANNO-HEPTOPYRANOSE
C7 H14 O7
BGWQRWREUZVRGI-QQABCQGCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.233 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 172.820α = 90.00
b = 172.820β = 90.00
c = 87.910γ = 120.00
Software Package:
Software NamePurpose
XDSdata scaling
DENZOdata reduction
XDSdata reduction
CNSrefinement
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-08-29
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2012-06-20
    Type: Non-polymer description