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(-) Description

Title :  EXFOLIATIVE TOXIN A
 
Authors :  G. M. Vath, C. A. Earhart, J. V. Rago, M. H. Kim, G. A. Bohach, P. M. Schlievert, D. H. Ohlendorf
Date :  22 Oct 96  (Deposition) - 25 Feb 98  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.10
Chains :  Asym./Biol. Unit :  A
Keywords :  Complex (Toxin/Peptide), Hydrolase, Serine Protease, Superantigen (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  G. M. Vath, C. A. Earhart, J. V. Rago, M. H. Kim, G. A. Bohach, P. M. Schlievert, D. H. Ohlendorf
The Structure Of The Superantigen Exfoliative Toxin A Suggests A Novel Regulation As A Serine Protease.
Biochemistry V. 36 1559 1997
PubMed-ID: 9048539  |  Reference-DOI: 10.1021/BI962614F
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - EXFOLIATVE TOXIN A
    Chains: A
    EC Number: 3.4.21.-
    Organism Scientific: STAPHYLOCOCCUS AUREUS
    Organism Taxid: 1280
    Strain: MNEV
    Synonym: ETA

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
1GLY1Mod. Amino AcidGLYCINE

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWARELYS A:21 , GLU A:24 , ARG A:26A , ASN A:71 , HOH A:407BINDING SITE FOR RESIDUE GLY A 300
2CATUNKNOWNASP A:102 , HIS A:57 , SER A:195CATALYTIC SITE.

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Tyr A:26D-Pro A:26E

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1V8_HISPS00672 Serine proteases, V8 family, histidine active site.ETA_STAAU96-110  1A:43-57
2V8_SERPS00673 Serine proteases, V8 family, serine active site.ETA_STAAU228-238  1A:190-200

(-) Exons   (0, 0)

(no "Exon" information available for 1EXF)

(-) 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:242
 aligned with ETA_STAAU | P09331 from UniProtKB/Swiss-Prot  Length:280

    Alignment length:242
                                                                                                                                                                                                                                                                          280 
                                    49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279| 
           ETA_STAAU     40 VSAEEIKKHEEKWNKYYGVNAFNLPKELFSKVDEKDRQKYPYNTIGNVFVKGQTSATGVLIGKNTVLTNRHIAKFANGDPSKVSFRPSINTDDNGNTETPYGEYEVKEILQEPFGAGVDLALIRLKPDQNGVSLGDKISPAKIGTSNDLKDGDKLELIGYPFDHKVNQMHRSEIELTTLSRGLRYYGFTVPGNSGSGIFNSNGELVGIHSSKVSHLDREHQINYGVGIGNYVKRIINEKNE-    -
               SCOP domains d1exfa_ A: Epidermolytic (exfoliative) toxin A                                                                                                                                                                                                     SCOP domains
               CATH domains 1exfA01 A:1B-30,A:121-231                    1exfA02 A:31-120,A:232-243 Trypsin-like serine proteases                                       1exfA01 A:1B-30,A:121-231 Trypsin-like serine proteases                                 1exfA02      - CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhh...hhh.....eee..hhhhh...hhheeeeee...eeeeee.....eeee.hhhhhhh...hhheeeee.eee.....eee......eeeee..........eeeee........hhh.........hhh.....eeeeeee........eeeeeeeee.hhh.eeee....hhh...eee.....eeeeeeeeee......eeeeeee..hhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------V8_HIS         ---------------------------------------------------------------------------------------------------------------------V8_SER     ------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1exf A   1B VSAEEIKKHEEKWNKYYGVNAFNLPKELFSKVDEKDRQKYPYNTIGNVFVKGQTSATGVLIGKNTVLTNRHIAKFANGDPSKVSFRPSINTDDNGNTETPYGEYEVKEILQEPFGAGVDLALIRLKPDQNGVSLGDKISPAKIGTSNDLKDGDKLELIGYPFDHKVNQMHRSEIELTTLSRGLRYYGFTVPGNSGSGIFNSNGELVGIHSSKVSHLDREHQINYGVGIGNYVKRIINEKNEG  300
                            ||||||||1K|       10        20      |26D|       35||      46        56      |62D|       71    |   80|       89   | ||103      110C||    |120     ||131       141   ||  156       166|    ||191       201||     214       223      232A       242||
                            |||||||1J||                       26A||||        36|                      62A||||           75A   80A          92A ||       110A||||  115|     126|              145|            166|  184|           202|            221A        232A        243|
                           1B|||||||1K|                        26B|||         38                       62B|||                                 94|        110B|||   118      128               151             179   188            206                                     300
                            1C|||||| 1L                         26C||                                   62C||                                 100         110C||                                                                                                              
                             1D|||||                             26D|                                    62D|                                              110D|                                                                                                              
                              1E||||                              26E                                     62E                                               110E                                                                                                              
                               1F|||                                                                                                                                                                                                                                          
                                1G||                                                                                                                                                                                                                                          
                                 1H|                                                                                                                                                                                                                                          
                                  1I
   Legend:   → Mismatch (orange background)
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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: All beta proteins (24004)

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (5, 5)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (ETA_STAAU | P09331)
molecular function
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0008233    peptidase activity    Catalysis of the hydrolysis of a peptide bond. A peptide bond is a covalent bond formed when the carbon atom from the carboxyl group of one amino acid shares electrons with the nitrogen atom from the amino group of a second amino acid.
    GO:0004252    serine-type endopeptidase activity    Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
    GO:0008236    serine-type peptidase activity    Catalysis of the hydrolysis of peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
biological process
    GO:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.

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 Related Entries

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

UniProtKB/Swiss-Prot
        ETA_STAAU | P09331: 1agj 1dua 1due

(-) Related Entries Specified in the PDB File

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