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(-) Description

Title :  SOLUTION STRUCTURE OF APO-ISCU(WT)
 
Authors :  J. H. Kim, M. Tonelli, J. L. Markley
Date :  19 Oct 10  (Deposition) - 07 Dec 11  (Release) - 26 Sep 12  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (20x)
NMR Structure *:  A  (1x)
Keywords :  Iscu, Iron-Sulfur Cluster, Iron-Sulfur Cluster Scaffold, Metal Transport (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  J. H. Kim, M. Tonelli, T. Kim, J. L. Markley
Three-Dimensional Structure And Determinants Of Stability O The Iron-Sulfur Cluster Scaffold Protein Iscu From Escherichia Coli.
Biochemistry V. 51 5557 2012
PubMed-ID: 22734684  |  Reference-DOI: 10.1021/BI300579P

(-) Compounds

Molecule 1 - IRON-SULFUR CLUSTER ASSEMBLY SCAFFOLD PROTEIN
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Strain: BL21
    Expression System Taxid: 562
    Expression System Vector: PTRC99A
    Gene: ISCU
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 83333
    Strain: K-12

 Structural Features

(-) Chains, Units

  1
NMR Structure (20x): A
NMR Structure * (1x): A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 2L4X)

(-) Sites  (0, 0)

(no "Site" information available for 2L4X)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2L4X)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2L4X)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2L4X)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2L4X)

(-) Exons   (0, 0)

(no "Exon" information available for 2L4X)

(-) Sequences/Alignments

NMR Structure
   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:128
 aligned with ISCU_ECOLI | P0ACD4 from UniProtKB/Swiss-Prot  Length:128

    Alignment length:128
                                    10        20        30        40        50        60        70        80        90       100       110       120        
           ISCU_ECOLI     1 MAYSEKVIDHYENPRNVGSFDNNDENVGSGMVGAPACGDVMKLQIKVNDEGIIEDARFKTYGCGSAIASSSLVTEWVKGKSLDEAQAIKNTDIAEELELPPVKIHCSILAEDAIKAAIADYKSKREAK 128
               SCOP domains d2l4xa_ A: automated matches                                                                                                     SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .........................................eeeeee.....eeeeeee............hhhhhh...hhhhhh..hhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2l4x A   1 MAYSEKVIDHYENPRNVGSFDNNDENVGSGMVGAPACGDVMKLQIKVNDEGIIEDARFKTYGCGSAIASSSLVTEWVKGKSLDEAQAIKNTDIAEELELPPVKIHCSILAEDAIKAAIADYKSKREAK 128
                                    10        20        30        40        50        60        70        80        90       100       110       120        


Chain A from PDB  Type:PROTEIN  Length:128
 aligned with Q1R8K3_ECOUT | Q1R8K3 from UniProtKB/TrEMBL  Length:128

    Alignment length:128
                                    10        20        30        40        50        60        70        80        90       100       110       120        
         Q1R8K3_ECOUT     1 MAYSEKVIDHYENPRNVGSFDNNDENVGSGMVGAPACGDVMKLQIKVNDEGIIEDARFKTYGCGSAIASSSLVTEWVKGKSLDEAQAIKNTDIAEELELPPVKIHCSILAEDAIKAAIADYKSKREAK 128
               SCOP domains d2l4xa_ A: automated matches                                                                                                     SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .........................................eeeeee.....eeeeeee............hhhhhh...hhhhhh..hhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2l4x A   1 MAYSEKVIDHYENPRNVGSFDNNDENVGSGMVGAPACGDVMKLQIKVNDEGIIEDARFKTYGCGSAIASSSLVTEWVKGKSLDEAQAIKNTDIAEELELPPVKIHCSILAEDAIKAAIADYKSKREAK 128
                                    10        20        30        40        50        60        70        80        90       100       110       120
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  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)

NMR Structure
(-)
Class: Alpha and beta proteins (a+b) (23004)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2L4X)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2L4X)

(-) Gene Ontology  (13, 16)

NMR Structure(hide GO term definitions)
Chain A   (ISCU_ECOLI | P0ACD4)
molecular function
    GO:0051537    2 iron, 2 sulfur cluster binding    Interacting selectively and non-covalently with a 2 iron, 2 sulfur (2Fe-2S) cluster; this cluster consists of two iron atoms, with two inorganic sulfur atoms found between the irons and acting as bridging ligands.
    GO:0051539    4 iron, 4 sulfur cluster binding    Interacting selectively and non-covalently with a 4 iron, 4 sulfur (4Fe-4S) cluster; this cluster consists of four iron atoms, with the inorganic sulfur atoms found between the irons and acting as bridging ligands.
    GO:0008198    ferrous iron binding    Interacting selectively and non-covalently with ferrous iron, Fe(II).
    GO:0042802    identical protein binding    Interacting selectively and non-covalently with an identical protein or proteins.
    GO:0005506    iron ion binding    Interacting selectively and non-covalently with iron (Fe) ions.
    GO:0051536    iron-sulfur cluster binding    Interacting selectively and non-covalently with an iron-sulfur cluster, a combination of iron and sulfur atoms.
    GO:0036455    iron-sulfur transferase activity    Catalysis of the transfer of a iron-sulfur cluster from one compound (donor) to another (acceptor).
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
biological process
    GO:0044571    [2Fe-2S] cluster assembly    The incorporation of two iron atoms and two sulfur atoms into an iron-sulfur cluster.
    GO:0006879    cellular iron ion homeostasis    Any process involved in the maintenance of an internal steady state of iron ions at the level of a cell.
    GO:0016226    iron-sulfur cluster assembly    The incorporation of iron and exogenous sulfur into a metallo-sulfur cluster.
    GO:0097428    protein maturation by iron-sulfur cluster transfer    The transfer of an assembled iron-sulfur cluster from a scaffold protein to an acceptor protein that contributes to the attainment of the full functional capacity of a protein.
cellular component
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

Chain A   (Q1R8K3_ECOUT | Q1R8K3)
molecular function
    GO:0005506    iron ion binding    Interacting selectively and non-covalently with iron (Fe) ions.
    GO:0051536    iron-sulfur cluster binding    Interacting selectively and non-covalently with an iron-sulfur cluster, a combination of iron and sulfur atoms.
biological process
    GO:0016226    iron-sulfur cluster assembly    The incorporation of iron and exogenous sulfur into a metallo-sulfur cluster.

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 Related Entries

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

UniProtKB/Swiss-Prot
        ISCU_ECOLI | P0ACD4: 2kqk

(-) Related Entries Specified in the PDB File

1r9p SOLUTION STRUCTURE OF ZN-BOUND ISCU
2kqk SOLUTION STRUCTURE OF APO-ISCU(D39A)
2z7e SOLUTION STRUCTURE OF HOLO-ISCU
3lvl COMPLEX CRYSTAL STRUCTURE OF ISCU AND ISCS