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(-) Description

Title :  CRYSTAL STRUCTURE OF THE STREPTOCOCCAL SUPERANTIGEN SPE-C
 
Authors :  A. Roussel, E. N. Baker
Date :  27 Jun 97  (Deposition) - 29 Apr 98  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.40
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (2x)
Keywords :  Bacterial Superantigen, Toxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  A. Roussel, B. F. Anderson, H. M. Baker, J. D. Fraser, E. N. Baker
Crystal Structure Of The Streptococcal Superantigen Spe-C: Dimerization And Zinc Binding Suggest A Novel Mode Of Interaction With Mhc Class Ii Molecules.
Nat. Struct. Biol. V. 4 635 1997
PubMed-ID: 9253413  |  Reference-DOI: 10.1038/NSB0897-635
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - STREPTOCOCCAL PYROGENIC EXOTOXIN C
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Expression System Vector Type: BACTERIAL
    Organism Scientific: STREPTOCOCCUS PYOGENES
    Organism Taxid: 1314
    Synonym: SPE-C

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit : A
Biological Unit 1 (2x): A

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 1AN8)

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1ZNAUNKNOWNHIS A:167 , HIS A:201 , ASP A:203THIS SITE ALSO INCLUDES HIS 81 FROM A SYMMETRY-RELATED MOLECULE.
2ZNBUNKNOWNHIS A:35 , GLU A:54THIS SITE ALSO INCLUDES HIS 35 AND GLU 54 FROM A SYMMETRY-RELATED MOLECULE.

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1AN8)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1AN8)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1AN8)

(-) PROSITE Motifs  (2, 2)

Asymmetric Unit (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1STAPH_STREP_TOXIN_1PS00277 Staphylococcal enterotoxin/Streptococcal pyrogenic exotoxin signature 1.SPEC_STRP1114-123  1A:87-96
SPEC_STRP8114-123  1A:87-96
2STAPH_STREP_TOXIN_2PS00278 Staphyloccocal enterotoxin/Streptococcal pyrogenic exotoxin signature 2.SPEC_STRP1151-174  1A:124-147
SPEC_STRP8151-174  1A:124-147
Biological Unit 1 (2, 8)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1STAPH_STREP_TOXIN_1PS00277 Staphylococcal enterotoxin/Streptococcal pyrogenic exotoxin signature 1.SPEC_STRP1114-123  2A:87-96
SPEC_STRP8114-123  2A:87-96
2STAPH_STREP_TOXIN_2PS00278 Staphyloccocal enterotoxin/Streptococcal pyrogenic exotoxin signature 2.SPEC_STRP1151-174  2A:124-147
SPEC_STRP8151-174  2A:124-147

(-) Exons   (0, 0)

(no "Exon" information available for 1AN8)

(-) 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:206
 aligned with SPEC_STRP1 | P0C0I5 from UniProtKB/Swiss-Prot  Length:235

    Alignment length:206
                                    39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229      
           SPEC_STRP1    30 KKDISNVKSDLLYAYTITPYDYKNCRVNFSTTHTLNIDTQKYRGKDYYISSEMSYEASQKFKRDDHVDVFGLFYILNSHTGEYIYGGITPAQNNKVNHKLLGNLFISGESQQNLNNKIILEKDIVTFQEIDFKIRKYLMDNYKIYDATSPYVSGRIEIGTKDGKHEQIDLFDSPNEGTRSDIFAKYKDNRIINMKNFSHFDIYLEK 235
               SCOP domains d1an8a1 A:3-95 Streptococcal superantigen Spe-C                                              d1an8a2 A:96-208 Streptococcal superantigen Spe-C                                                                 SCOP domains
               CATH domains 1an8A01         1an8A02 A:19-93  [code=2.40.50.110, no name defined]                       1an8A01 A:3-18,A:94-208  [code=3.10.20.120, no name defined]                                                        CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhh....eee....eeee...eeeee.hhhh....eeeee..hhhhhh......eeeee.........eeeee..eee...........eeeee.................eeehhhhhhhhhhhhhhhh..........eeeeeeee....eeeee.........hhhhhhhhhh..eeehhheeeeeeeee. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------STAPH_STRE---------------------------STAPH_STREP_TOXIN_2     ------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1an8 A   3 KKDISNVKSDLLYAYTITPYDYKDCRVNFSTTHTLNIDTQKYRGKDYYISSEMSYEASQKFKRDDHVDVFGLFYILNSHTGEYIYGGITPAQNNKVNHKLLGNLFISGESQQNLNNKIILEKDIVTFQEIDFKIRKYLMDNYKIYDATSPYVSGRIEIGTKDGKHEQIDLFDSPNEGTRSDIFAKYKDNRIINMKNFSHFDIYLEK 208
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202      


Chain A from PDB  Type:PROTEIN  Length:206
 aligned with SPEC_STRP8 | Q8NKX2 from UniProtKB/Swiss-Prot  Length:235

    Alignment length:206
                                    39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229      
           SPEC_STRP8    30 KKDISNVKSDLLYAYTITPYDYKDCRVNFSTTHTLNIDTQKYRGKDYYISSEMSYEASQKFKRDDHVDVFGLFYILNSHTGEYIYGGITPAQNNKVNHKLLGNLFISGESQQNLNNKIILEKDIVTFQEIDFKIRKYLMDNYKIYDATSPYVSGRIEIGTKDGKHEQIDLFDSPNEGTRSDIFAKYKDNRIINMKNFSHFDIYLEK 235
               SCOP domains d1an8a1 A:3-95 Streptococcal superantigen Spe-C                                              d1an8a2 A:96-208 Streptococcal superantigen Spe-C                                                                 SCOP domains
               CATH domains 1an8A01         1an8A02 A:19-93  [code=2.40.50.110, no name defined]                       1an8A01 A:3-18,A:94-208  [code=3.10.20.120, no name defined]                                                        CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhh....eee....eeee...eeeee.hhhh....eeeee..hhhhhh......eeeee.........eeeee..eee...........eeeee.................eeehhhhhhhhhhhhhhhh..........eeeeeeee....eeeee.........hhhhhhhhhh..eeehhheeeeeeeee. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) ------------------------------------------------------------------------------------STAPH_STRE---------------------------STAPH_STREP_TOXIN_2     ------------------------------------------------------------- PROSITE (2)
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1an8 A   3 KKDISNVKSDLLYAYTITPYDYKDCRVNFSTTHTLNIDTQKYRGKDYYISSEMSYEASQKFKRDDHVDVFGLFYILNSHTGEYIYGGITPAQNNKVNHKLLGNLFISGESQQNLNNKIILEKDIVTFQEIDFKIRKYLMDNYKIYDATSPYVSGRIEIGTKDGKHEQIDLFDSPNEGTRSDIFAKYKDNRIINMKNFSHFDIYLEK 208
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202
   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  (2, 2)

Asymmetric Unit
(-)
Class: All beta proteins (24004)
(-)
Class: Alpha and beta proteins (a+b) (23004)

(-) CATH Domains  (2, 2)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1AN8)

(-) Gene Ontology  (2, 4)

Asymmetric Unit(hide GO term definitions)
Chain A   (SPEC_STRP1 | P0C0I5)
biological process
    GO:0009405    pathogenesis    The set of specific processes that generate the ability of an organism to induce an abnormal, generally detrimental state in another organism.
cellular component
    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.

Chain A   (SPEC_STRP8 | Q8NKX2)
biological process
    GO:0009405    pathogenesis    The set of specific processes that generate the ability of an organism to induce an abnormal, generally detrimental state in another organism.
cellular component
    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.

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 Related Entries

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

UniProtKB/Swiss-Prot
        SPEC_STRP1 | P0C0I5: 1hqr 1ktk
        SPEC_STRP8 | Q8NKX2: 1hqr 1ktk

(-) Related Entries Specified in the PDB File

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