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(-) Description

Title :  STRUCTURAL CHARACTERISTICS FOR BIOLOGICAL ACTIVITY OF HEAT-STABLE ENTEROTOXIN PRODUCED BY ENTEROTOXIGENIC ESCHERICHIA COLI: X-RAY CRYSTALLOGRAPHY OF WEAKLY TOXIC AND NONTOXIC ANALOGS
 
Authors :  T. Sato, Y. Shimonishi
Date :  15 Mar 94  (Deposition) - 29 Jan 96  (Release) - 19 Jun 13  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  0.89
Chains :  Asym./Biol. Unit :  A
Keywords :  Enterotoxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  T. Sato, H. Ozaki, Y. Hata, Y. Kitagawa, Y. Katsube, Y. Shimonishi
Structural Characteristics For Biological Activity Of Heat-Stable Enterotoxin Produced By Enterotoxigenic Escherichia Coli: X-Ray Crystallography Of Weakly Toxic And Nontoxic Analogs.
Biochemistry V. 33 8641 1994
PubMed-ID: 8038153  |  Reference-DOI: 10.1021/BI00195A004
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - 5-BETA-MERCAPTOPROPIONATE HEAT-STABLE ENTEROTOXIN
    Chains: A
    Engineered: YES
    Mutation: YES
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 562
    Strain: 18D
    Synonym: (MPR5,LEU13)STP(5-17)

 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
1MPR1Mod. Amino Acid2-MERCAPTO-PROPION ALDEHYDE

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1S1AUTHORASN A:11 , PRO A:12 , LEU A:13THE RECEPTOR BINDING SITE DEDUCED FROM CHEMICAL MUTATION STUDY
2S2AUTHORPRO A:12 , LEU A:13 , CYS A:14 , ALA A:15 , GLY A:16 , CYS A:17PUTATIVE CATION BINDING SITE SUGGESTED FROM CONFORMATIONAL SIMILARITIES TO IONOPHORE PEPTIDES.

(-) SS Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1A:6 -A:14
2A:9 -A:17

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ENTEROTOXIN_H_STABLEPS00273 Heat-stable enterotoxins signature.HST1_ECOLX59-71  1A:6-17

(-) Exons   (0, 0)

(no "Exon" information available for 1ETM)

(-) 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    
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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:13
 aligned with HST1_ECOLX | P01559 from UniProtKB/Swiss-Prot  Length:72

    Alignment length:13
                                    68   
            HST1_ECOLX   59 CCELCCNPACAGC 71
               SCOP domains d1etma_ A:    SCOP domains
               CATH domains ------------- CATH domains
               Pfam domains ------------- Pfam domains
         Sec.struct. author hhhhh........ Sec.struct. author
                 SAPs(SNPs) ------------- SAPs(SNPs)
                    PROSITE ENTEROTOXIN_H PROSITE
                 Transcript ------------- Transcript
                  1etm A  5 xCELCCNPLCAGC 17
                            |       14   
                            |            
                            5-MPR
   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: Peptides (792)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1ETM)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (2, 2)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (HST1_ECOLX | P01559)
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
        HST1_ECOLX | P01559: 1etl 1etn

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