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(-) Description

Title :  HEAT-LABILE ENTEROTOXIN (LT-I) COMPLEX WITH T-ANTIGEN
 
Authors :  F. Van Den Akker, W. G. J. Hol
Date :  09 May 96  (Deposition) - 17 Aug 96  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.13
Chains :  Asym./Biol. Unit :  A,C,D,E,F,G,H
Keywords :  Adp-Ribosyl Transferase, Enterotoxin (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  F. Van Den Akker, E. Steensma, W. G. Hol
Tumor Marker Disaccharide D-Gal-Beta 1, 3-Galnac Complexed To Heat-Labile Enterotoxin From Escherichia Coli.
Protein Sci. V. 5 1184 1996
PubMed-ID: 8762150
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - HEAT LABILE ENTEROTOXIN TYPE I
    ChainsD, E, F, G, H
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidEWD299
    Expression System StrainC600
    Expression System Taxid562
    Organism ScientificESCHERICHIA COLI
    Organism Taxid562
    Other DetailsLATENT/INACTIVE FORM
    StrainPORCINE ENTEROTOXIGENIC K12
    SynonymLT-I
 
Molecule 2 - HEAT LABILE ENTEROTOXIN TYPE I
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidEWD299
    Expression System StrainC600
    Expression System Taxid562
    Organism ScientificESCHERICHIA COLI
    Organism Taxid562
    Other DetailsLATENT/INACTIVE FORM
    StrainPORCINE ENTEROTOXIGENIC K12
    SynonymLT-I
 
Molecule 3 - HEAT LABILE ENTEROTOXIN TYPE I
    ChainsC
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidEWD299
    Expression System StrainC600
    Expression System Taxid562
    Organism ScientificESCHERICHIA COLI
    Organism Taxid562
    Other DetailsLATENT/INACTIVE FORM
    StrainPORCINE ENTEROTOXIGENIC K12
    SynonymLT-I

 Structural Features

(-) Chains, Units

  1234567
Asymmetric/Biological Unit ACDEFGH

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 5)

Asymmetric/Biological Unit (2, 5)
No.NameCountTypeFull Name
1A2G1Ligand/IonN-ACETYL-2-DEOXY-2-AMINO-GALACTOSE
2GAL4Ligand/IonBETA-D-GALACTOSE

(-) Sites  (5, 5)

Asymmetric Unit (5, 5)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLU D:51 , GLN D:56 , HIS D:57 , GLN D:61 , TRP D:88 , ASN D:90 , LYS D:91BINDING SITE FOR RESIDUE GAL D 104
2AC2SOFTWAREGLU E:51 , GLN E:56 , GLN E:61 , TRP E:88 , ASN E:90 , LYS E:91 , HOH F:121BINDING SITE FOR RESIDUE GAL E 104
3AC3SOFTWAREGLU G:51 , GLN G:56 , HIS G:57 , GLN G:61 , TRP G:88 , ASN G:90 , LYS G:91 , A2G G:105BINDING SITE FOR RESIDUE GAL G 104
4AC4SOFTWARESER A:81 , PHE A:132 , HIS A:181 , HIS A:182 , ASN G:14 , GLN G:56 , GAL G:104BINDING SITE FOR RESIDUE A2G G 105
5AC5SOFTWAREGLU H:51 , GLN H:56 , HIS H:57 , GLN H:61 , TRP H:88 , ASN H:90 , LYS H:91 , HOH H:134BINDING SITE FOR RESIDUE GAL H 104

(-) SS Bonds  (6, 6)

Asymmetric/Biological Unit
No.Residues
1A:187 -C:199
2D:9 -D:86
3E:9 -E:86
4F:9 -F:86
5G:9 -G:86
6H:9 -H:86

(-) Cis Peptide Bonds  (6, 6)

Asymmetric/Biological Unit
No.Residues
1Thr D:92 -Pro D:93
2Thr E:92 -Pro E:93
3Thr F:92 -Pro F:93
4Thr G:92 -Pro G:93
5Thr H:92 -Pro H:93
6Glu A:177 -Pro A:178

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (2, 6)

Asymmetric/Biological Unit (2, 6)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_ELBP_ECOLX_001 *T96AELBP_ECOLX  ---  ---D/E/F/G/HT75A
2UniProtVAR_ELAP_ECOLX_001 *E130KELAP_ECOLX  ---  ---AE112K
   * ID not provided by source

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1LTI)

(-) Exons   (0, 0)

(no "Exon" information available for 1LTI)

(-) 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:185
 aligned with ELAP_ECOLX | P06717 from UniProtKB/Swiss-Prot  Length:258

    Alignment length:185
                                    31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201     
           ELAP_ECOLX    22 RLYRADSRPPDEIKRSGGLMPRGHNEYFDRGTQMNINLYDHARGTQTGFVRYDDGYVSTSLSLRSAHLAGQSILSGYSTYYIYVIATAPNMFNVNDVLGVYSPHPYEQEVSALGGIPYSQIYGWYRVNFGVIDERLHRNREYRDRYYRNLNIAPAEDGYRLAGFPPDHQAWREEPWIHHAPQGCG 206
               SCOP domains d1lti.1 A:,C: Heat-labile toxin, A-chain                                                                                                                                                  SCOP domains
               CATH domains 1ltiA00 A:4-188 Heat-Labile Enterotoxin, subunit A                                                                                                                                        CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeeee...hhhhhhh.....................hhhhh.............eeee...hhhhhhhhhhhhhh..eeeeeee.....eeehhhhhhhh...hhh..eeee....hhheeeeeeee...............hhhhh......hhhhhhh........hhh....hhh...... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------K---------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1lti A   4 RLYRADSRPPDEIKRSGGLMPRGHNEYFDRGTQMNINLYDHARGTQTGFVRYDDGYVSTSLSLRSAHLAGQSILSGYSTYYIYVIATAPNMFNVNDVLGVYSPHPYEQEVSALGGIPYSQIYGWYRVNFGVIDERLHRNREYRDRYYRNLNIAPAEDGYRLAGFPPDHQAWREEPWIHHAPQGCG 188
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183     

Chain C from PDB  Type:PROTEIN  Length:41
 aligned with ELAP_ECOLX | P06717 from UniProtKB/Swiss-Prot  Length:258

    Alignment length:41
                                   223       233       243       253 
           ELAP_ECOLX   214 GDTCNEETQNLSTIYLREYQSKVKRQIFSDYQSEVDIYNRI 254
               SCOP domains d1lti.1 A:,C: Heat-labile toxin, A-chain  SCOP domains
               CATH domains 1ltiC00 C:196-236                         CATH domains
           Pfam domains (1) Enterotoxin_a-1ltiC01 C:196-236           Pfam domains (1)
           Pfam domains (2) Enterotoxin_a-1ltiC02 C:196-236           Pfam domains (2)
         Sec.struct. author ...hhhhhhhhhhhhhhhhhhhhhhhh.hhh.......... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------- PROSITE
                 Transcript ----------------------------------------- Transcript
                 1lti C 196 GDTCNEETQNLSTIYLREYQSKVKRQIFSDYQSEVDIYNRI 236
                                   205       215       225       235 

Chain D from PDB  Type:PROTEIN  Length:103
 aligned with ELBP_ECOLX | P32890 from UniProtKB/Swiss-Prot  Length:124

    Alignment length:103
                                    31        41        51        61        71        81        91       101       111       121   
           ELBP_ECOLX    22 APQTITELCSEYRNTQIYTINDKILSYTESMAGKREMVIITFKSGETFQVEVPGSQHIDSQKKAIERMKDTLRITYLTETKIDKLCVWNNKTPNSIAAISMKN 124
               SCOP domains d1ltid_ D: Heat-labile toxin                                                                            SCOP domains
               CATH domains 1ltiD00 D:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhhh...eeeee......eeeee......eeeee.....eeee........hhhhhhhhhhhhhhhhhhhh...eeeeeee.........eeeee. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 1lti D   1 APQTITELCSEYRNTQIYTINDKILSYTESMAGKREMVIITFKSGETFQVEVPGSQHIDSQKKAIERMKDTLRITYLTETKIDKLCVWNNKTPNSIAAISMKN 103
                                    10        20        30        40        50        60        70        80        90       100   

Chain E from PDB  Type:PROTEIN  Length:103
 aligned with ELBP_ECOLX | P32890 from UniProtKB/Swiss-Prot  Length:124

    Alignment length:103
                                    31        41        51        61        71        81        91       101       111       121   
           ELBP_ECOLX    22 APQTITELCSEYRNTQIYTINDKILSYTESMAGKREMVIITFKSGETFQVEVPGSQHIDSQKKAIERMKDTLRITYLTETKIDKLCVWNNKTPNSIAAISMKN 124
               SCOP domains d1ltie_ E: Heat-labile toxin                                                                            SCOP domains
               CATH domains 1ltiE00 E:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhhh...eeeee......eeeeeee..eeeeeee.....eeee........hhhhhhhhhhhhhhhhhhhh...eeeeeee.........eeeee. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 1lti E   1 APQTITELCSEYRNTQIYTINDKILSYTESMAGKREMVIITFKSGETFQVEVPGSQHIDSQKKAIERMKDTLRITYLTETKIDKLCVWNNKTPNSIAAISMKN 103
                                    10        20        30        40        50        60        70        80        90       100   

Chain F from PDB  Type:PROTEIN  Length:103
 aligned with ELBP_ECOLX | P32890 from UniProtKB/Swiss-Prot  Length:124

    Alignment length:103
                                    31        41        51        61        71        81        91       101       111       121   
           ELBP_ECOLX    22 APQTITELCSEYRNTQIYTINDKILSYTESMAGKREMVIITFKSGETFQVEVPGSQHIDSQKKAIERMKDTLRITYLTETKIDKLCVWNNKTPNSIAAISMKN 124
               SCOP domains d1ltif_ F: Heat-labile toxin                                                                            SCOP domains
               CATH domains 1ltiF00 F:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhhh...eeeee......eeeee......eeeee.....eeee........hhhhhhhhhhhhhhhhhhhh.....eeeee......eeeeeeee. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 1lti F   1 APQTITELCSEYRNTQIYTINDKILSYTESMAGKREMVIITFKSGETFQVEVPGSQHIDSQKKAIERMKDTLRITYLTETKIDKLCVWNNKTPNSIAAISMKN 103
                                    10        20        30        40        50        60        70        80        90       100   

Chain G from PDB  Type:PROTEIN  Length:103
 aligned with ELBP_ECOLX | P32890 from UniProtKB/Swiss-Prot  Length:124

    Alignment length:103
                                    31        41        51        61        71        81        91       101       111       121   
           ELBP_ECOLX    22 APQTITELCSEYRNTQIYTINDKILSYTESMAGKREMVIITFKSGETFQVEVPGSQHIDSQKKAIERMKDTLRITYLTETKIDKLCVWNNKTPNSIAAISMKN 124
               SCOP domains d1ltig_ G: Heat-labile toxin                                                                            SCOP domains
               CATH domains 1ltiG00 G:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhhh...eeeee......eeeee......eeeee.....eeee........hhhhhhhhhhhhhhhhhhhh.....eeeee......eeeeeeee. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 1lti G   1 APQTITELCSEYRNTQIYTINDKILSYTESMAGKREMVIITFKSGETFQVEVPGSQHIDSQKKAIERMKDTLRITYLTETKIDKLCVWNNKTPNSIAAISMKN 103
                                    10        20        30        40        50        60        70        80        90       100   

Chain H from PDB  Type:PROTEIN  Length:103
 aligned with ELBP_ECOLX | P32890 from UniProtKB/Swiss-Prot  Length:124

    Alignment length:103
                                    31        41        51        61        71        81        91       101       111       121   
           ELBP_ECOLX    22 APQTITELCSEYRNTQIYTINDKILSYTESMAGKREMVIITFKSGETFQVEVPGSQHIDSQKKAIERMKDTLRITYLTETKIDKLCVWNNKTPNSIAAISMKN 124
               SCOP domains d1ltih_ H: Heat-labile toxin                                                                            SCOP domains
               CATH domains 1ltiH00 H:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
           Pfam domains (1) Enterotoxin_b-1ltiH01 H:1-102                                                                         - Pfam domains (1)
           Pfam domains (2) Enterotoxin_b-1ltiH02 H:1-102                                                                         - Pfam domains (2)
           Pfam domains (3) Enterotoxin_b-1ltiH03 H:1-102                                                                         - Pfam domains (3)
           Pfam domains (4) Enterotoxin_b-1ltiH04 H:1-102                                                                         - Pfam domains (4)
           Pfam domains (5) Enterotoxin_b-1ltiH05 H:1-102                                                                         - Pfam domains (5)
         Sec.struct. author ....hhhhhhh...eeeee......eeeee......eeeee.....eeee........hhhhhhhhhhhhhhhhhhhh.....eeeee......eeeeeeee. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 1lti H   1 APQTITELCSEYRNTQIYTINDKILSYTESMAGKREMVIITFKSGETFQVEVPGSQHIDSQKKAIERMKDTLRITYLTETKIDKLCVWNNKTPNSIAAISMKN 103
                                    10        20        30        40        50        60        70        80        90       100   

   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, 6)

Asymmetric/Biological Unit

(-) CATH Domains  (3, 7)

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

(-) Pfam Domains  (2, 7)

Asymmetric/Biological Unit

(-) Gene Ontology  (4, 6)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,C   (ELAP_ECOLX | P06717)
molecular function
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
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 D,E,F,G,H   (ELBP_ECOLX | P32890)
biological process
    GO:0031640    killing of cells of other organism    Any process in an organism that results in the killing of cells of another organism, including in some cases the death of the other organism. Killing here refers to the induction of death in one cell by another cell, not cell-autonomous death due to internal or other environmental conditions.
    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
        ELAP_ECOLX | P067171htl 1lt3 1lt4 1lta 1ltb 1ltg 1lts 1ltt
        ELBP_ECOLX | P328901djr 1eef 1efi 1fd7 1htl 1jqy 1lt3 1lt4 1lt5 1lt6 1lta 1ltb 1ltg 1lts 1ltt 1pzi 1tet 2xrq 2xrs 5lzi

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 1LTI)