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(-) Description

Title :  CRYSTAL STRUCTURE OF FERRIC CITRATE TRANSPORTER FECA IN COMPLEX WITH IRON-FREE CITRATE
 
Authors :  W. W. Yue, S. Grizot, S. K. Buchanan
Date :  13 Jun 03  (Deposition) - 18 Nov 03  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.15
Chains :  Asym./Biol. Unit :  A
Keywords :  Outer Membrane Protein, Beta Barrel, Tonb-Dependent Transport, Citrate, Siderophore (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  W. W. Yue, S. Grizot, S. K. Buchanan
Structural Evidence For Iron-Free Citrate And Ferric Citrate Binding To The Tonb-Dependent Outer Membrane Transporter Feca
J. Mol. Biol. V. 332 353 2003
PubMed-ID: 12948487  |  Reference-DOI: 10.1016/S0022-2836(03)00855-6
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - IRON(III) DICITRATE TRANSPORT PROTEIN FECA PRECURSOR
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21
    Expression System Plasmid: PET20B
    Expression System Strain: BL21
    Expression System Taxid: 511693
    Expression System Vector Type: PLASMID
    Fragment: FECA RESIDUES 81-741
    Gene: FECA OR B4291
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 562

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 2)

Asymmetric/Biological Unit (1, 2)
No.NameCountTypeFull Name
1FLC2Ligand/IonCITRATE ANION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETHR A:138 , ARG A:155 , ARG A:365 , ARG A:380 , ASP A:720 , FLC A:743 , HOH A:744 , HOH A:745 , HOH A:746 , HOH A:748 , HOH A:852 , HOH A:960BINDING SITE FOR RESIDUE FLC A 742
2AC2SOFTWAREARG A:155 , GLN A:176 , GLN A:178 , ARG A:380 , ARG A:438 , SER A:521 , FLC A:742 , HOH A:745 , HOH A:746 , HOH A:747 , HOH A:748 , HOH A:846BINDING SITE FOR RESIDUE FLC A 743

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1PO0)

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Gly A:204 -Pro A:205

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1PO0)

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1TONB_DEPENDENT_REC_2PS01156 TonB-dependent receptor proteins signature 2.FECA_ECOLI757-774  1A:724-741

(-) Exons   (0, 0)

(no "Exon" information available for 1PO0)

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:661
 aligned with FECA_ECOLI | P13036 from UniProtKB/Swiss-Prot  Length:774

    Alignment length:661
                                   123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423       433       443       453       463       473       483       493       503       513       523       533       543       553       563       573       583       593       603       613       623       633       643       653       663       673       683       693       703       713       723       733       743       753       763       773 
           FECA_ECOLI   114 ALTVVGDWLGDARENDVFEHAGARDVIRREDFAKTGATTMREVLNRIPGVSAPENNGTGSHDLAMNFGIRGLNPRLASRSTVLMDGIPVPFAPYGQPQLSLAPVSLGNMDAIDVVRGGGAVRYGPQSVGGVVNFVTRAIPQDFGIEAGVEGQLSPTSSQNNPKETHNLMVGGTADNGFGTALLYSGTRGSDWREHSATRIDDLMLKSKYAPDEVHTFNSLLQYYDGEADMPGGLSRADYDADRWQSTRPYDRFWGRRKLASLGYQFQPDSQHKFNIQGFYTQTLRSGYLEQGKRITLSPRNYWVRGIEPRYSQIFMIGPSAHEVGVGYRYLNESTHEMRYYTATSSGQLPSGSSPYDRDTRSGTEAHAWYLDDKIDIGNWTITPGMRFEHIESYQNNAITGTHEEVSYNAPLPALNVLYHLTDSWNLYANTEGSFGTVQYSQIGKAVQSGNVEPEKARTWELGTRYDDGALTAEMGLFLINFNNQYDSNQTNDTVTARGKTRHTGLETQARYDLGTLTPTLDNVSIYASYAYVNAEIREKGDTYGNLVPFSPKHKGTLGVDYKPGNWTFNLNSDFQSSQFADNANTVKESADGSTGRIPGFMLWGARVAYDFGPQMADLNLAFGVKNIFDQDYFIRSYDDNNKGIYAGQPRTLYMQGSLKF 774
               SCOP domains d1po0a_ A: Outer membrane transporter FecA                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            SCOP domains
               CATH domains --------------1po0A01 A:95-222 Ferric Hydroxamate Uptake Protein; Chain A, domain 1                                                           1po0A02 A:223-741  [code=2.40.170.20, no name defined]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  CATH domains
               Pfam domains ---------------Plug-1po0A02 A:96-211                                                                                               ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------TonB_dep_Rec-1po0A01 A:492-740                                                                                                                                                                                                                           - Pfam domains
         Sec.struct. author ............hhhhhhh.....eeeehhhhhhhh..hhhhhhh....ee....hhhhh.......ee....hhhhh..eeee..ee................hhh.eeeeeee..........hhhh.eeeeee.......eeeeeeeeee.........eeeeeeeeeee....eeeeeeeeeeee........eeeeeeeeeeee.....eeeeeeeeeeeeeee.....hhhhhhhh.........eeeeeeeeeeeeeeeeee..eeeeeeeeeeeeeeeeeeee..eeee..eeeeeeeeeeeeeeeeee..eeeeeeeeeeeeeeeeeeeeeeee............eeeeeeeeeeeeeeeeeeeeee..eeeeeeeeeeeeeeeeee.....eeeeeeeeeeeeeeeeeeee..eeeeeeeeeeee..hhhhhhhhhhhh....eeeeeeeeeeeee...eeeeeeeeeeeeeee.............eeeeeeeeeeeeeee.hhhhhhhh.eeeeeeeeeeeeee................eeeeeeeee....eeeeeeeeee........................eeeeeeeeeee........eeeeeee.......eeee......eeee....eeeeeeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------TONB_DEPENDENT_REC PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1po0 A  81 ALTVVGDWLGDARENDVFEHAGARDVIRREDFAKTGATTMREVLNRIPGVSAPENNGTGSHDLAMNFGIRGLNPRLASRSTVLMDGIPVPFAPYGQPQLSLAPVSLGNMDAIDVVRGGGAVRYGPQSVGGVVNFVTRAIPQDFGIEAGVEGQLSPTSSQNNPKETHNLMVGGTADNGFGTALLYSGTRGSDWREHSATRIDDLMLKSKYAPDEVHTFNSLLQYYDGEADMPGGLSRADYDADRWQSTRPYDRFWGRRKLASLGYQFQPDSQHKFNIQGFYTQTLRSGYLEQGKRITLSPRNYWVRGIEPRYSQIFMIGPSAHEVGVGYRYLNESTHEMRYYTATSSGQLPSGSSPYDRDTRSGTEAHAWYLDDKIDIGNWTITPGMRFEHIESYQNNAITGTHEEVSYNAPLPALNVLYHLTDSWNLYANTEGSFGTVQYSQIGKAVQSGNVEPEKARTWELGTRYDDGALTAEMGLFLINFNNQYDSNQTNDTVTARGKTRHTGLETQARYDLGTLTPTLDNVSIYASYAYVNAEIREKGDTYGNLVPFSPKHKGTLGVDYKPGNWTFNLNSDFQSSQFADNANTVKESADGSTGRIPGFMLWGARVAYDFGPQMADLNLAFGVKNIFDQDYFIRSYDDNNKGIYAGQPRTLYMQGSLKF 741
                                    90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490       500       510       520       530       540       550       560       570       580       590       600       610       620       630       640       650       660       670       680       690       700       710       720       730       740
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
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  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Membrane and cell surface proteins and peptides (2046)

(-) CATH Domains  (2, 2)

Asymmetric/Biological Unit
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (2, 2)

Asymmetric/Biological Unit
(-)
Clan: MBB (97)
(-)
Clan: Ubiquitin (279)

(-) Gene Ontology  (12, 12)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (FECA_ECOLI | P13036)
molecular function
    GO:0015091    ferric iron transmembrane transporter activity    Enables the transfer of ferric iron (Fe(III) or Fe3+) ions from one side of a membrane to the other.
    GO:0005506    iron ion binding    Interacting selectively and non-covalently with iron (Fe) ions.
    GO:0004872    receptor activity    Combining with an extracellular or intracellular messenger to initiate a change in cell activity.
biological process
    GO:0015682    ferric iron transport    The directed movement of ferric iron (Fe(III) or Fe3+) ions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0006811    ion transport    The directed movement of charged atoms or small charged molecules into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0055072    iron ion homeostasis    Any process involved in the maintenance of an internal steady state of iron ions within an organism or cell.
    GO:0015891    siderophore transport    The directed movement of siderophores, low molecular weight Fe(III)-chelating substances, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0006810    transport    The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
cellular component
    GO:0009279    cell outer membrane    A lipid bilayer that forms the outermost membrane of the cell envelope; enriched in polysaccharide and protein; the outer leaflet of the membrane contains specific lipopolysaccharide structures.
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0019867    outer membrane    The external membrane of Gram-negative bacteria or certain organelles such as mitochondria and chloroplasts; freely permeable to most ions and metabolites.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        FECA_ECOLI | P13036: 1kmo 1kmp 1pnz 1po3 1zzv 2d1u

(-) Related Entries Specified in the PDB File

1pnz 1PNZ IS THE SAME PROTEIN IN THE UNLIGANDED FORM