Show PDB file:   
         Plain Text   HTML   (compressed file size)
QuickSearch:   
by PDB,NDB,UniProt,PROSITE Code or Search Term(s)  
(-)Asymmetric Unit
(-)Asym. Unit - sites
(-)Biological Unit 1
(-)Biol. Unit 1 - sites
(-)Biological Unit 2
collapse expand < >
Image Asymmetric Unit
Asymmetric Unit  (Jmol Viewer)
Image Asym. Unit - sites
Asym. Unit - sites  (Jmol Viewer)
Image Biological Unit 1
Biological Unit 1  (Jmol Viewer)
Image Biol. Unit 1 - sites
Biol. Unit 1 - sites  (Jmol Viewer)
Image Biological Unit 2
Biological Unit 2  (Jmol Viewer)

(-) Description

Title :  CRYSTAL STRUCTURES EXPLORING THE ORIGINS OF THE BROADER SPECIFICITY OF ESCHERICHIA COLI HEAT-LABILE ENTEROTOXIN COMPARED TO CHOLERA TOXIN
 
Authors :  A. Holmner, A. Mackenzie, M. Okvist, L. Jansson, M. Lebens, S. Teneberg U. Krengel
Date :  20 Sep 10  (Deposition) - 08 Dec 10  (Release) - 28 Jun 17  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.81
Chains :  Asym. Unit :  D,E,F,G,H,L,M,N,O,P
Biol. Unit 1:  L,M,N,O,P  (1x)
Biol. Unit 2:  D,E,F,G,H  (1x)
Keywords :  Toxin, Host-Pathogen Interactions, Molecular Recognition, Protein- Carbohydrate Interaction (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  A. Holmner, A. Mackenzie, M. Okvist, L. Jansson, M. Lebens, S. Teneberg, U. Krengel
Crystal Structures Exploring The Origins Of The Broader Specificity Of Escherichia Coli Heat-Labile Enterotoxin Compared To Cholera Toxin
J. Mol. Biol. V. 406 387 2011
PubMed-ID: 21168418  |  Reference-DOI: 10.1016/J.JMB.2010.11.060

(-) Compounds

Molecule 1 - HEAT-LABILE ENTEROTOXIN B CHAIN
    Chains: D, E, F, G, H, L, M, N, O, P
    Engineered: YES
    Expression System: VIBRIO CHOLERAE
    Expression System Plasmid: PMLPLTBTAC
    Expression System Strain: JS1569
    Expression System Taxid: 666
    Expression System Vector Type: PLASMID
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 562
    Other Details: PORCINE ENTEROTOXIN PLT B SUBUNIT CONTAINS LINEAR NEOLACTOTETRAOSE GAL BETA4 GLCNAC BETA3 GAL BETA4
    Synonym: LT-B, PORCINE, LTP-B, AB5 TOXIN B SUBUNIT

 Structural Features

(-) Chains, Units

  12345678910
Asymmetric Unit : DEFGHLMNOP
Biological Unit 1 (1x):      LMNOP
Biological Unit 2 (1x): DEFGH     

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 21)

Asymmetric Unit (2, 21)
No.NameCountTypeFull Name
1GAL12Ligand/IonBETA-D-GALACTOSE
2NAG9Ligand/IonN-ACETYL-D-GLUCOSAMINE
Biological Unit 1 (2, 10)
No.NameCountTypeFull Name
1GAL6Ligand/IonBETA-D-GALACTOSE
2NAG4Ligand/IonN-ACETYL-D-GLUCOSAMINE
Biological Unit 2 (2, 11)
No.NameCountTypeFull Name
1GAL6Ligand/IonBETA-D-GALACTOSE
2NAG5Ligand/IonN-ACETYL-D-GLUCOSAMINE

(-) Sites  (10, 10)

Asymmetric Unit (10, 10)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREGLU N:51 , GLN N:56 , HIS N:57 , GLN N:61 , TRP N:88 , ASN N:90 , LYS N:91 , HOH O:350binding site for residue GAL N 201
02AC2SOFTWAREGLU D:51 , GLN D:56 , HIS D:57 , ILE D:58 , GLN D:61 , TRP D:88 , ASN D:90 , LYS D:91 , HOH D:307 , HOH D:317 , HOH D:374 , HOH E:358binding site for Poly-Saccharide residues NAG D 201 through GAL D 202
03AC3SOFTWAREGLU E:51 , GLN E:56 , HIS E:57 , ILE E:58 , GLN E:61 , TRP E:88 , ASN E:90 , LYS E:91 , HOH E:342 , HOH E:355 , HOH E:362 , HOH F:350 , GLN O:16 , TYR O:18 , HOH O:365binding site for Poly-Saccharide residues GAL E 201 through GAL E 203
04AC4SOFTWAREGLU E:51 , GLN E:56 , HIS E:57 , ILE E:58 , GLN E:61 , TRP E:88 , ASN E:90 , LYS E:91 , HOH E:342 , HOH E:355 , HOH E:362 , GLU F:51 , GLN F:56 , HIS F:57 , ILE F:58 , GLN F:61 , TRP F:88 , ASN F:90 , LYS F:91 , HOH F:312 , HOH F:329 , HOH F:350 , HOH F:353 , HOH G:333 , GLN O:16 , TYR O:18 , HOH O:365binding site for Poly-Saccharide residues NAG F 201 through GAL F 202
05AC5SOFTWAREGLU G:51 , GLN G:56 , HIS G:57 , ILE G:58 , GLN G:61 , TRP G:88 , ASN G:90 , LYS G:91 , HOH G:316 , HOH G:342 , HOH G:350 , HOH H:347binding site for Poly-Saccharide residues NAG G 201 through GAL G 202
06AC6SOFTWAREHOH D:336 , GLU E:46 , GLU H:51 , GLN H:56 , HIS H:57 , ILE H:58 , GLN H:61 , TRP H:88 , ASN H:90 , LYS H:91 , HOH H:332 , HOH H:356 , HOH H:362 , HOH H:374binding site for Poly-Saccharide residues NAG H 201 through GAL H 202
07AC7SOFTWAREGLU L:51 , GLN L:56 , HIS L:57 , ILE L:58 , GLN L:61 , TRP L:88 , ASN L:90 , LYS L:91 , HOH L:305 , HOH L:320 , HOH L:355 , HOH L:360 , HOH L:361 , HOH M:362binding site for Poly-Saccharide residues NAG L 201 through GAL L 202
08AC8SOFTWAREGLN G:16 , TYR G:18 , GLU G:46 , GLU M:51 , GLN M:56 , HIS M:57 , ILE M:58 , GLN M:61 , TRP M:88 , ASN M:90 , LYS M:91 , HOH M:325 , HOH M:334 , HOH N:336binding site for Poly-Saccharide residues GAL M 201 through GAL M 203
09AC9SOFTWAREGLN G:16 , TYR G:18 , GLU G:46 , GLU M:51 , GLN M:56 , HIS M:57 , ILE M:58 , GLN M:61 , TRP M:88 , ASN M:90 , LYS M:91 , HOH M:325 , HOH M:334 , HOH N:336 , ARG O:13 , GLU O:51 , SER O:55 , GLN O:56 , HIS O:57 , GLN O:61 , TRP O:88 , ASN O:90 , LYS O:91 , HOH O:302 , HOH O:310 , HOH O:338 , HOH P:345binding site for Poly-Saccharide residues NAG O 201 through GAL O 202
10AD1SOFTWAREHOH L:345 , GLU M:46 , GLU P:51 , GLN P:56 , HIS P:57 , ILE P:58 , GLN P:61 , TRP P:88 , ASN P:90 , LYS P:91 , HOH P:312 , HOH P:333binding site for Poly-Saccharide residues NAG P 201 through GAL P 202

(-) SS Bonds  (10, 10)

Asymmetric Unit
No.Residues
1D:9 -D:86
2E:9 -E:86
3F:9 -F:86
4G:9 -G:86
5H:9 -H:86
6L:9 -L:86
7M:9 -M:86
8N:9 -N:86
9O:9 -O:86
10P:9 -P:86

(-) Cis Peptide Bonds  (10, 10)

Asymmetric 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
6Thr L:92 -Pro L:93
7Thr M:92 -Pro M:93
8Thr N:92 -Pro N:93
9Thr O:92 -Pro O:93
10Thr P:92 -Pro P:93

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (1, 10)

Asymmetric Unit (1, 10)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_ELBP_ECOLX_001 *T96AELBP_ECOLX  ---  ---D/E/F/G/H/L/M/N/O/PT75A
   * ID not provided by source
  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 1 (1, 5)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_ELBP_ECOLX_001 *T96AELBP_ECOLX  ---  ---L/M/N/O/PT75A
   * ID not provided by source
  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 2 (1, 5)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_ELBP_ECOLX_001 *T96AELBP_ECOLX  ---  ---D/E/F/G/HT75A
   * ID not provided by source
  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 2XRS)

(-) 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 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 d2xrsd_ D: Heat-labile toxin                                                                            SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhh....eeeee......eeeee......eeeee.....eeee.........hhhhhhhhhhhhhhhhhhh.....eeeee......eeeeee... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 2xrs 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 d2xrse_ E: Heat-labile toxin                                                                            SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhh....eeeee......eeeeeee..eeeeeee.....eeee.........hhhhhhhhhhhhhhhhhhhh....eeeee......eeeee.... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 2xrs 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 d2xrsf_ F: Heat-labile toxin                                                                            SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhh...eeeee......eeeee......eeeee.....eeee.........hhhhhhhhhhhhhhhhhhhh....eeeee......eeeeee... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 2xrs 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 d2xrsg_ G: Heat-labile toxin                                                                            SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhh....eeeee......eeeee......eeeee.....eeee.........hhhhhhhhhhhhhhhhhhh.....eeeee......eeeee.... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 2xrs 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 d2xrsh_ H: Heat-labile toxin                                                                            SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhh....eeeee......eeeee......eeeee.....eeee.........hhhhhhhhhhhhhhhhhhhh....eeeee......eeeeee... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 2xrs H   1 APQTITELCSEYRNTQIYTINDKILSYTESMAGKREMVIITFKSGETFQVEVPGSQHIDSQKKAIERMKDTLRITYLTETKIDKLCVWNNKTPNSIAAISMKN 103
                                    10        20        30        40        50        60        70        80        90       100   


Chain L 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 d2xrsl_ L: Heat-labile toxin                                                                            SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhh....eeeee......eeeee......eeeee.....eeee.........hhhhhhhhhhhhhhhhhhhh....eeeee......eeeeee... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 2xrs L   1 APQTITELCSEYRNTQIYTINDKILSYTESMAGKREMVIITFKSGETFQVEVPGSQHIDSQKKAIERMKDTLRITYLTETKIDKLCVWNNKTPNSIAAISMKN 103
                                    10        20        30        40        50        60        70        80        90       100   


Chain M 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 d2xrsm_ M: Heat-labile toxin                                                                            SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhh....eeeee......eeeeeee..eeeeeee.....eeee.........hhhhhhhhhhhhhhhhhhh.....eeeee......eeeeee... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 2xrs M   1 APQTITELCSEYRNTQIYTINDKILSYTESMAGKREMVIITFKSGETFQVEVPGSQHIDSQKKAIERMKDTLRITYLTETKIDKLCVWNNKTPNSIAAISMKN 103
                                    10        20        30        40        50        60        70        80        90       100   


Chain N 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 d2xrsn_ N: Heat-labile toxin                                                                            SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhh...eeeee......eeeee......eeeee.....eeee.........hhhhhhhhhhhhhhhhhhhh....eeeee......eeeeee... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 2xrs N   1 APQTITELCSEYRNTQIYTINDKILSYTESMAGKREMVIITFKSGETFQVEVPGSQHIDSQKKAIERMKDTLRITYLTETKIDKLCVWNNKTPNSIAAISMKN 103
                                    10        20        30        40        50        60        70        80        90       100   


Chain O 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 d2xrso_ O: Heat-labile toxin                                                                            SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhh....eeeee......eeeee......eeeee.....eeee.........hhhhhhhhhhhhhhhhhhh.....eeeee......eeeee.... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 2xrs O   1 APQTITELCSEYRNTQIYTINDKILSYTESMAGKREMVIITFKSGETFQVEVPGSQHIDSQKKAIERMKDTLRITYLTETKIDKLCVWNNKTPNSIAAISMKN 103
                                    10        20        30        40        50        60        70        80        90       100   


Chain P 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 d2xrsp_ P: Heat-labile toxin                                                                            SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) Enterotoxin_b-2xrsP01 P:1-102                                                                         - Pfam domains (1)
           Pfam domains (2) Enterotoxin_b-2xrsP02 P:1-102                                                                         - Pfam domains (2)
           Pfam domains (3) Enterotoxin_b-2xrsP03 P:1-102                                                                         - Pfam domains (3)
           Pfam domains (4) Enterotoxin_b-2xrsP04 P:1-102                                                                         - Pfam domains (4)
           Pfam domains (5) Enterotoxin_b-2xrsP05 P:1-102                                                                         - Pfam domains (5)
           Pfam domains (6) Enterotoxin_b-2xrsP06 P:1-102                                                                         - Pfam domains (6)
           Pfam domains (7) Enterotoxin_b-2xrsP07 P:1-102                                                                         - Pfam domains (7)
           Pfam domains (8) Enterotoxin_b-2xrsP08 P:1-102                                                                         - Pfam domains (8)
           Pfam domains (9) Enterotoxin_b-2xrsP09 P:1-102                                                                         - Pfam domains (9)
          Pfam domains (10) Enterotoxin_b-2xrsP10 P:1-102                                                                         - Pfam domains (10)
         Sec.struct. author ...hhhhhhh....eeeee......eeeee......eeeee.....eeee.........hhhhhhhhhhhhhhhhhhhh....eeeee......eeeeee... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 2xrs P   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  (1, 10)

Asymmetric Unit
(-)
Class: All beta proteins (24004)

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (1, 10)

Asymmetric Unit
(-)
Clan: no clan defined [family: Enterotoxin_b] (23)

(-) Gene Ontology  (3, 3)

Asymmetric Unit(hide GO term definitions)
Chain D,E,F,G,H,L,M,N,O,P   (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.

 Visualization

(-) Interactive Views

Asymmetric Unit
  Complete Structure
    Jena3D(integrated viewing of ligand, site, SAP, PROSITE, SCOP information)
    WebMol | AstexViewer[tm]@PDBe
(Java Applets, require no local installation except for Java; loading may be slow)
    STRAP
(Java WebStart application, automatic local installation, requires Java; full application with system access!)
    RasMol
(require local installation)
    Molscript (VRML)
(requires installation of a VRML viewer; select preferred view via VRML and generate a mono or stereo PDF format file)
 
  Ligands, Modified Residues, Ions
    GAL  [ RasMol | Jena3D ]  +environment [ RasMol | Jena3D ]
    NAG  [ RasMol | Jena3D ]  +environment [ RasMol | Jena3D ]
 
  Sites
    AC1  [ RasMol ]  +environment [ RasMol ]
    AC2  [ RasMol ]  +environment [ RasMol ]
    AC3  [ RasMol ]  +environment [ RasMol ]
    AC4  [ RasMol ]  +environment [ RasMol ]
    AC5  [ RasMol ]  +environment [ RasMol ]
    AC6  [ RasMol ]  +environment [ RasMol ]
    AC7  [ RasMol ]  +environment [ RasMol ]
    AC8  [ RasMol ]  +environment [ RasMol ]
    AC9  [ RasMol ]  +environment [ RasMol ]
    AD1  [ RasMol ]  +environment [ RasMol ]
 
  Cis Peptide Bonds
    Thr D:92 - Pro D:93   [ RasMol ]  
    Thr E:92 - Pro E:93   [ RasMol ]  
    Thr F:92 - Pro F:93   [ RasMol ]  
    Thr G:92 - Pro G:93   [ RasMol ]  
    Thr H:92 - Pro H:93   [ RasMol ]  
    Thr L:92 - Pro L:93   [ RasMol ]  
    Thr M:92 - Pro M:93   [ RasMol ]  
    Thr N:92 - Pro N:93   [ RasMol ]  
    Thr O:92 - Pro O:93   [ RasMol ]  
    Thr P:92 - Pro P:93   [ RasMol ]  
 
Biological Units
  Complete Structure
    Biological Unit 1  [ Jena3D ]
    Biological Unit 2  [ Jena3D ]

(-) Still Images

Jmol
  protein: cartoon or spacefill or dots and stick; nucleic acid: cartoon and stick; ligands: spacefill; active site: stick
[ Asym. Unit PNG format | Asym. Unit - sites PNG format | Biol. Unit 1 PNG format | Biol. Unit 1 - sites PNG format | Biol. Unit 2 PNG format ](automatic orientation, automatically generated)
Molscript
  protein, nucleic acid: cartoon; ligands: spacefill; active site: ball and stick
[ mono PDF format | stereo PDF format ](default orientation, automatically generated)

 Databases and Analysis Tools

(-) Databases

Access by PDB/NDB ID
  2xrs
    Family and Domain Information: ProDom | SYSTERS
    General Structural Information: GlycoscienceDB | MMDB | NDB | OCA | PDB | PDBe | PDBj | PDBsum | PDBWiki | PQS | PROTEOPEDIA
    Orientation in Membranes: OPM
    Protein Surface: SURFACE
    Secondary Structure: DSSP (structure derived) | HSSP (homology derived)
    Structural Genomics: GeneCensus
    Structural Neighbours: CE | VAST
    Structure Classification: CATH | Dali | SCOP
    Validation and Original Data: BMRB Data View | BMRB Restraints Grid | EDS | PROCHECK | RECOORD | WHAT_CHECK
 
Access by UniProt ID/Accession number
  ELBP_ECOLX | P32890
    Comparative Protein Structure Models: ModBase
    Genomic Information: Ensembl
    Protein-protein Interaction: DIP
    Sequence, Family and Domain Information: InterPro | Pfam | SMART | UniProtKB/SwissProt
 
Access by Enzyme Classificator   (EC Number)
  (no 'Enzyme Classificator' available)
    General Enzyme Information: BRENDA | EC-PDB | Enzyme | IntEnz
    Pathway: KEGG | MetaCyc
 
Access by Disease Identifier   (MIM ID)
  (no 'MIM ID' available)
    Disease Information: OMIM
 
Access by GenAge ID
  (no 'GenAge ID' available)
    Age Related Information: GenAge

(-) Analysis Tools

Access by PDB/NDB ID
    Domain Information: XDom
    Interatomic Contacts of Structural Units: CSU
    Ligand-protein Contacts: LPC
    Protein Cavities: castP
    Sequence and Secondary Structure: PDBCartoon
    Structure Alignment: STRAP(Java WebStart application, automatic local installation, requires Java; full application with system access!)
    Structure and Sequence Browser: STING
 
Access by UniProt ID/Accession number
  ELBP_ECOLX | P32890
    Protein Disorder Prediction: DisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)

 Related Entries

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

UniProtKB/Swiss-Prot
        ELBP_ECOLX | P32890: 1djr 1eef 1efi 1fd7 1htl 1jqy 1lt3 1lt4 1lt5 1lt6 1lta 1ltb 1ltg 1lti 1lts 1ltt 1pzi 1tet 2xrq 5lzi

(-) Related Entries Specified in the PDB File

1djr HEAT-LABILE ENTEROTOXIN B-PENTAMER COMPLEXED WITH M-CARBOXYPHENYL- ALPHA-D-GALACTOSE
1eef HEAT-LABILE ENTEROTOXIN B-PENTAMER COMPLEXED WITH BINDING SITE INHIBITOR ZTOI061
1efi HEAT-LABILE ENTEROTOXIN B-PENTAMER COMPLEXED WITH PARA- AMINOPHENYL- ALPHA-D- GALACTOPYRANOSIDE
1fd7 HEAT-LABILE ENTEROTOXIN B-PENTAMER WITH BOUND LIGAND BMSC001
1htl HEAT LABILE ENTEROTOXIN (LT) MUTANT WITH VAL A 97 REPLACED BY LYS (V(A 97)K) ( SYNCHROTRON X-RAY DIFFRACTION)
1jqy HEAT-LABILE ENTEROTOXIN B-PENTAMER WITH LIGAND BMSC-0010
1lt3 HEAT-LABILE ENTEROTOXIN DOUBLE MUTANT N40C/ G166C
1lt4 HEAT-LABILE ENTEROTOXIN MUTANT S63K
1lt5 HEAT-LABILE ENTEROTOXIN B-PENTAMER COMPLEXED WITH THIODIGALACTOSIDE
1lt6 HEAT-LABILE ENTEROTOXIN B-PENTAMER COMPLEXED WITH METANITROPHENYLGALACTOSIDE
1lta HEAT-LABILE ENTEROTOXIN (LT) COMPLEX WITH GALACTOSE
1ltb HEAT-LABILE ENTEROTOXIN (LT) (PARTIALLY ACTIVATED BY TRYPSIN CLEAVAGE)
1ltg THE ARG7LYS MUTANT OF HEAT-LABILE ENTEROTOXIN EXHIBITS GREAT FLEXIBILITY OF ACTIVE SITE LOOP 47-56 OF THE A SUBUNIT
1lti HEAT-LABILE ENTEROTOXIN (LT-I) COMPLEX WITH T-ANTIGEN
1lts HEAT-LABILE ENTEROTOXIN (LT)
1ltt HEAT-LABILE ENTEROTOXIN (LT) COMPLEX WITH LACTOSE
1pzi HEAT-LABILE ENTEROTOXIN B-PENTAMER COMPLEXED WITHNITROPHENYL GALACTOSIDE 2A
2xrq CRYSTAL STRUCTURES EXPLORING THE ORIGINS OF THE BROADER SPECIFICITY OF ESCHERICHIA COLI HEAT-LABILE ENTEROTOXIN COMPARED TO CHOLERA TOXIN