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(-) Description

Title :  CRYSTAL STRUCTURE OF THE HEME-ISDC COMPLEX
 
Authors :  K. H. Sharp, S. Schneider, A. Cockayne, M. Paoli
Date :  08 Dec 06  (Deposition) - 06 Feb 07  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.50
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Biol. Unit 3:  A,B  (1x)
Biol. Unit 4:  A (1x),B (1x)
Biol. Unit 5:  A (1x),B (1x)
Keywords :  Beta Barrel, Protein-Heme Complex, Transport Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  K. H. Sharp, S. Schneider, A. Cockayne, M. Paoli
Crystal Structure Of The Heme-Isdc Complex, The Central Conduit Of The Isd Iron/Heme Uptake System In Staphylococcu Aureus
To Be Published
PubMed: search

(-) Compounds

Molecule 1 - IRON-REGULATED SURFACE DETERMINANT PROTEIN C
    ChainsA, B
    EngineeredYES
    Expression SystemESCHERICHIA COLI BL21
    Expression System PlasmidPGAT2
    Expression System StrainBL21
    Expression System Taxid511693
    Expression System Vector TypePLASMID
    FragmentRESIDUES 28-188
    Organism ScientificSTAPHYLOCOCCUS AUREUS SUBSP. AUREUS
    Organism Taxid158879
    StrainN315
    SynonymISDC, STAPHYLOCOCCAL IRON-REGULATED PROTEIN D

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit AB
Biological Unit 1 (1x)A 
Biological Unit 2 (1x) B
Biological Unit 3 (1x)AB
Biological Unit 4 (1x)A (1x)B (1x)
Biological Unit 5 (1x)A (1x)B (1x)

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 10)

Asymmetric Unit (3, 10)
No.NameCountTypeFull Name
1CL2Ligand/IonCHLORIDE ION
2HEM2Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
3ZN6Ligand/IonZINC ION
Biological Unit 1 (1, 1)
No.NameCountTypeFull Name
1CL-1Ligand/IonCHLORIDE ION
2HEM1Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
3ZN-1Ligand/IonZINC ION
Biological Unit 2 (1, 1)
No.NameCountTypeFull Name
1CL-1Ligand/IonCHLORIDE ION
2HEM1Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
3ZN-1Ligand/IonZINC ION
Biological Unit 3 (1, 2)
No.NameCountTypeFull Name
1CL-1Ligand/IonCHLORIDE ION
2HEM2Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
3ZN-1Ligand/IonZINC ION
Biological Unit 4 (1, 1)
No.NameCountTypeFull Name
1CL-1Ligand/IonCHLORIDE ION
2HEM1Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
3ZN-1Ligand/IonZINC ION
Biological Unit 5 (1, 1)
No.NameCountTypeFull Name
1CL-1Ligand/IonCHLORIDE ION
2HEM1Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
3ZN-1Ligand/IonZINC ION

(-) Sites  (10, 10)

Asymmetric Unit (10, 10)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREASN A:42 , ASP A:114 , ASP B:133 , HIS B:135BINDING SITE FOR RESIDUE ZN B 1001
02AC2SOFTWAREHEM A:190 , HIS B:134 , HOH B:1051 , HOH B:1103BINDING SITE FOR RESIDUE ZN B 1003
03AC3SOFTWAREGLY A:28 , HIS A:76 , GLU A:123 , GLY B:28BINDING SITE FOR RESIDUE ZN B 1002
04AC4SOFTWAREHIS A:134 , HOH A:1053 , HOH A:1065 , HEM B:190BINDING SITE FOR RESIDUE ZN A 1004
05AC5SOFTWAREHIS A:74 , LYS B:58 , HOH B:1088 , HOH B:1098BINDING SITE FOR RESIDUE ZN B 1005
06AC6SOFTWAREASP A:133 , HIS A:135 , HOH A:1083BINDING SITE FOR RESIDUE ZN A 1006
07AC7SOFTWARESER A:82 , GLU A:84 , GLY A:85 , LYS A:116BINDING SITE FOR RESIDUE CL A 1007
08AC8SOFTWARESER B:82 , GLU B:84 , GLY B:85 , HOH B:1089 , HOH B:1100BINDING SITE FOR RESIDUE CL B 1008
09AC9SOFTWARELYS A:40 , SER A:47 , ILE A:48 , TYR A:52 , VAL A:119 , PHE A:130 , TYR A:132 , TYR A:136 , ILE A:138 , HOH A:1013 , HOH A:1044 , HOH A:1059 , PHE B:130 , LYS B:131 , TYR B:132 , HIS B:134 , HEM B:190 , ZN B:1003BINDING SITE FOR RESIDUE HEM A 190
10BC1SOFTWARETYR A:132 , HIS A:134 , TYR A:136 , HEM A:190 , ZN A:1004 , HOH A:1053 , LYS B:40 , SER B:47 , ILE B:48 , TYR B:52 , ILE B:78 , ILE B:117 , VAL B:119 , TYR B:132 , TYR B:136 , ILE B:138 , HOH B:1014 , HOH B:1032BINDING SITE FOR RESIDUE HEM B 190

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2O6P)

(-) Cis Peptide Bonds  (3, 3)

Asymmetric Unit
No.Residues
1Lys A:55 -Pro A:56
2Lys B:55 -Pro B:56
3Glu B:123 -Lys B:124

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2O6P)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2O6P)

(-) Exons   (0, 0)

(no "Exon" information available for 2O6P)

(-) Sequences/Alignments

Asymmetric 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:123
 aligned with ISDC_STAA8 | Q8KQR1 from UniProtKB/Swiss-Prot  Length:227

    Alignment length:123
                                    37        47        57        67        77        87        97       107       117       127       137       147   
           ISDC_STAA8    28 AADSGTLNYEVYKYNTNDTSIANDYFNKPAKYIKKNGKLYVQITVNHSHWITGMSIEGHKENIISKNTAKDERTSEFEVSKLNGKIDGKIDVYIDEKVNGKPFKYDHHYNITYKFNGPTDVAG 150
               SCOP domains -d2o6pa1 A:29-150 Iron-regulated surface determinant protein C, IsdC                                                        SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeeeeee......hhhhhhh...eeeeee..eeeeeeeee....eeeeee..ee.eeeeee....eeeeeeee...eeeeeeeeeeeeeeee..eeeeeeeeeeeeeeee....... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------- Transcript
                 2o6p A  28 GSDSGTLNYEVYKYNTNDTSIANDYFNKPAKYIKKNGKLYVQITVNHSHWITGMSIEGHKENIISKNTAKDERTSEFEVSKLNGKIDGKIDVYIDEKVNGKPFKYDHHYNITYKFNGPTDVAG 150
                                    37        47        57        67        77        87        97       107       117       127       137       147   

Chain A from PDB  Type:PROTEIN  Length:123
 aligned with ISDC_STAAN | Q7A654 from UniProtKB/Swiss-Prot  Length:227

    Alignment length:123
                                    37        47        57        67        77        87        97       107       117       127       137       147   
           ISDC_STAAN    28 AADSGTLNYEVYKYNTNDTSIANDYFNKPAKYIKKNGKLYVQITVNHSHWITGMSIEGHKENIISKNTAKDERTSEFEVSKLNGKIDGKIDVYIDEKVNGKPFKYDHHYNITYKFNGPTDVAG 150
               SCOP domains -d2o6pa1 A:29-150 Iron-regulated surface determinant protein C, IsdC                                                        SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeeeeee......hhhhhhh...eeeeee..eeeeeeeee....eeeeee..ee.eeeeee....eeeeeeee...eeeeeeeeeeeeeeee..eeeeeeeeeeeeeeee....... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------- Transcript
                 2o6p A  28 GSDSGTLNYEVYKYNTNDTSIANDYFNKPAKYIKKNGKLYVQITVNHSHWITGMSIEGHKENIISKNTAKDERTSEFEVSKLNGKIDGKIDVYIDEKVNGKPFKYDHHYNITYKFNGPTDVAG 150
                                    37        47        57        67        77        87        97       107       117       127       137       147   

Chain B from PDB  Type:PROTEIN  Length:119
 aligned with ISDC_STAA8 | Q8KQR1 from UniProtKB/Swiss-Prot  Length:227

    Alignment length:119
                                    37        47        57        67        77        87        97       107       117       127       137         
           ISDC_STAA8    28 AADSGTLNYEVYKYNTNDTSIANDYFNKPAKYIKKNGKLYVQITVNHSHWITGMSIEGHKENIISKNTAKDERTSEFEVSKLNGKIDGKIDVYIDEKVNGKPFKYDHHYNITYKFNGPT 146
               SCOP domains d2o6pb_ B: Iron-regulated surface determinant protein C, IsdC                                                           SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) --NEAT-2o6pB01 B:30-146                                                                                                 Pfam domains (1)
           Pfam domains (2) --NEAT-2o6pB02 B:30-146                                                                                                 Pfam domains (2)
         Sec.struct. author ..eeeee.eeeee......hhhhhhh...eeeeee..eeeeeeeee....eeeeee..ee.eeeeee....eeeeeeee...eeeeeeeeeeeeee......eeeeeeeeeeeeee... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------- Transcript
                 2o6p B  28 GSDSGTLNYEVYKYNTNDTSIANDYFNKPAKYIKKNGKLYVQITVNHSHWITGMSIEGHKENIISKNTAKDERTSEFEVSKLNGKIDGKIDVYIDEKVNGKPFKYDHHYNITYKFNGPT 146
                                    37        47        57        67        77        87        97       107       117       127       137         

Chain B from PDB  Type:PROTEIN  Length:119
 aligned with ISDC_STAAN | Q7A654 from UniProtKB/Swiss-Prot  Length:227

    Alignment length:119
                                    37        47        57        67        77        87        97       107       117       127       137         
           ISDC_STAAN    28 AADSGTLNYEVYKYNTNDTSIANDYFNKPAKYIKKNGKLYVQITVNHSHWITGMSIEGHKENIISKNTAKDERTSEFEVSKLNGKIDGKIDVYIDEKVNGKPFKYDHHYNITYKFNGPT 146
               SCOP domains d2o6pb_ B: Iron-regulated surface determinant protein C, IsdC                                                           SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) --NEAT-2o6pB01 B:30-146                                                                                                 Pfam domains (1)
           Pfam domains (2) --NEAT-2o6pB02 B:30-146                                                                                                 Pfam domains (2)
         Sec.struct. author ..eeeee.eeeee......hhhhhhh...eeeeee..eeeeeeeee....eeeeee..ee.eeeeee....eeeeeeee...eeeeeeeeeeeeee......eeeeeeeeeeeeee... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------- Transcript
                 2o6p B  28 GSDSGTLNYEVYKYNTNDTSIANDYFNKPAKYIKKNGKLYVQITVNHSHWITGMSIEGHKENIISKNTAKDERTSEFEVSKLNGKIDGKIDVYIDEKVNGKPFKYDHHYNITYKFNGPT 146
                                    37        47        57        67        77        87        97       107       117       127       137         

   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, 2)

Asymmetric Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2O6P)

(-) Pfam Domains  (1, 2)

Asymmetric Unit

(-) Gene Ontology  (6, 12)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (ISDC_STAAN | Q7A654)
molecular function
    GO:0030492    hemoglobin binding    Interacting selectively and non-covalently with hemoglobin, an oxygen carrying, conjugated protein containing four heme groups and globin.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
biological process
    GO:0015886    heme transport    The directed movement of heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
cellular component
    GO:0005618    cell wall    The rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal, most prokaryotic cells and some protozoan parasites, maintaining their shape and protecting them from osmotic lysis. In plants it is made of cellulose and, often, lignin; in fungi it is composed largely of polysaccharides; in bacteria it is composed of peptidoglycan; in protozoan parasites such as Giardia species, it's made of carbohydrates and proteins.
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
    GO:0009274    peptidoglycan-based cell wall    A protective structure outside the cytoplasmic membrane composed of peptidoglycan (also known as murein), a molecule made up of a glycan (sugar) backbone of repetitively alternating N-acetylglucosamine and N-acetylmuramic acid with short, attached, cross-linked peptide chains containing unusual amino acids. An example of this component is found in Escherichia coli.

Chain A,B   (ISDC_STAA8 | Q8KQR1)
molecular function
    GO:0030492    hemoglobin binding    Interacting selectively and non-covalently with hemoglobin, an oxygen carrying, conjugated protein containing four heme groups and globin.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
biological process
    GO:0015886    heme transport    The directed movement of heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
cellular component
    GO:0005618    cell wall    The rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal, most prokaryotic cells and some protozoan parasites, maintaining their shape and protecting them from osmotic lysis. In plants it is made of cellulose and, often, lignin; in fungi it is composed largely of polysaccharides; in bacteria it is composed of peptidoglycan; in protozoan parasites such as Giardia species, it's made of carbohydrates and proteins.
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
    GO:0009274    peptidoglycan-based cell wall    A protective structure outside the cytoplasmic membrane composed of peptidoglycan (also known as murein), a molecule made up of a glycan (sugar) backbone of repetitively alternating N-acetylglucosamine and N-acetylmuramic acid with short, attached, cross-linked peptide chains containing unusual amino acids. An example of this component is found in Escherichia coli.

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 Related Entries

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