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(-) Description

Title :  CHOLERA TOXIN B-PENTAMER COMPLEXED WITH GM1 PENTASACCHARIDE
 
Authors :  E. A. Merritt, W. G. J. Hol
Date :  03 Jun 97  (Deposition) - 03 Dec 97  (Release) - 28 Jul 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym./Biol. Unit :  D,E,F,G,H
Keywords :  Toxin/Receptor Complex, Pentasaccharide (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  E. A. Merritt, S. Sarfaty, M. G. Jobling, T. Chang, R. K. Holmes, T. R. Hirst, W. G. Hol
Structural Studies Of Receptor Binding By Cholera Toxin Mutants.
Protein Sci. V. 6 1516 1997
PubMed-ID: 9232653
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CHOLERA TOXIN
    ChainsD, E, F, G, H
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    FragmentB-PENTAMER
    Organism ScientificVIBRIO CHOLERAE
    Organism Taxid666
    Other DetailsRECEPTOR BINDING SITE ON EACH MONOMER OCCUPIED BY GM1 PENTASACCHARIDE
    StrainOGAWA 41 (CLASSICAL BIOTYPE)

 Structural Features

(-) Chains, Units

  12345
Asymmetric/Biological Unit DEFGH

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (4, 23)

Asymmetric/Biological Unit (4, 23)
No.NameCountTypeFull Name
1BGC3Ligand/IonBETA-D-GLUCOSE
2GAL10Ligand/IonBETA-D-GALACTOSE
3NGA5Ligand/IonN-ACETYL-D-GALACTOSAMINE
4SIA5Ligand/IonO-SIALIC ACID

(-) Sites  (23, 23)

Asymmetric Unit (23, 23)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREGLU D:51 , GLN D:56 , GLN D:61 , TRP D:88 , ASN D:90 , LYS D:91 , NGA D:105 , HOH D:166BINDING SITE FOR RESIDUE GAL D 104
02AC2SOFTWAREHIS D:13 , ASN D:14 , GAL D:104 , GAL D:106 , SIA D:108BINDING SITE FOR RESIDUE NGA D 105
03AC3SOFTWARENGA D:105 , SIA D:108 , HOH H:182BINDING SITE FOR RESIDUE GAL D 106
04AC4SOFTWARETYR D:12 , HIS D:13 , ILE D:58 , NGA D:105 , GAL D:106 , HOH D:151 , HOH D:166 , GLY E:33 , ARG E:35BINDING SITE FOR RESIDUE SIA D 108
05AC5SOFTWAREGLU E:51 , GLN E:56 , GLN E:61 , TRP E:88 , ASN E:90 , LYS E:91 , NGA E:105 , HOH E:132 , HOH E:134 , HOH E:147 , HOH E:153BINDING SITE FOR RESIDUE GAL E 104
06AC6SOFTWAREGLN E:56 , GAL E:104 , GAL E:106 , SIA E:108 , HOH E:134 , HOH E:160BINDING SITE FOR RESIDUE NGA E 105
07AC7SOFTWARENGA E:105 , BGC E:107 , SIA E:108BINDING SITE FOR RESIDUE GAL E 106
08AC8SOFTWARETHR D:6 , ASP D:7 , HOH D:160 , GAL E:106 , GLY G:54 , SER G:55 , HOH G:149BINDING SITE FOR RESIDUE BGC E 107
09AC9SOFTWAREGLU E:11 , TYR E:12 , HIS E:13 , ILE E:58 , NGA E:105 , GAL E:106 , HOH E:141 , HOH E:147 , HOH E:153 , HOH E:157BINDING SITE FOR RESIDUE SIA E 108
10BC1SOFTWAREGLU F:51 , GLN F:56 , GLN F:61 , TRP F:88 , ASN F:90 , LYS F:91 , NGA F:105 , HOH F:136 , HOH F:138 , HOH F:154BINDING SITE FOR RESIDUE GAL F 104
11BC2SOFTWAREHIS F:13 , ASN F:14 , GLN F:56 , GAL F:104 , GAL F:106 , SIA F:108BINDING SITE FOR RESIDUE NGA F 105
12BC3SOFTWAREHIS F:13 , NGA F:105 , SIA F:108BINDING SITE FOR RESIDUE GAL F 106
13BC4SOFTWAREGLU F:11 , TYR F:12 , HIS F:13 , NGA F:105 , GAL F:106 , HOH F:136 , HOH F:141BINDING SITE FOR RESIDUE SIA F 108
14BC5SOFTWAREHOH D:130 , GLU G:51 , GLN G:56 , HIS G:57 , GLN G:61 , TRP G:88 , ASN G:90 , LYS G:91 , NGA G:105 , HOH G:137 , HOH G:152 , HOH G:166BINDING SITE FOR RESIDUE GAL G 104
15BC6SOFTWAREHIS D:18 , HOH D:129 , HOH D:130 , HOH D:164 , ASN G:14 , GLN G:56 , ILE G:58 , GAL G:104 , GAL G:106 , SIA G:108 , HOH G:152BINDING SITE FOR RESIDUE NGA G 105
16BC7SOFTWAREGLN D:16 , HIS G:13 , NGA G:105 , BGC G:107 , SIA G:108BINDING SITE FOR RESIDUE GAL G 106
17BC8SOFTWAREHIS D:18 , ALA D:46 , THR D:47 , HIS D:94 , HOH D:124 , HOH D:144 , GAL G:106 , HOH G:194 , HOH H:192BINDING SITE FOR RESIDUE BGC G 107
18BC9SOFTWAREGLU G:11 , TYR G:12 , HIS G:13 , ILE G:58 , NGA G:105 , GAL G:106 , HOH G:135 , HOH G:137 , HOH G:166 , HOH G:177 , LYS H:34BINDING SITE FOR RESIDUE SIA G 108
19CC1SOFTWAREGLU H:51 , GLN H:56 , GLN H:61 , TRP H:88 , ASN H:90 , LYS H:91 , NGA H:105 , HOH H:113 , HOH H:135 , HOH H:156 , HOH H:157BINDING SITE FOR RESIDUE GAL H 104
20CC2SOFTWAREHIS E:18 , HIS H:13 , ASN H:14 , GLN H:56 , GAL H:104 , GAL H:106 , SIA H:108 , HOH H:113 , HOH H:135 , HOH H:136 , HOH H:143BINDING SITE FOR RESIDUE NGA H 105
21CC3SOFTWAREGLN E:16 , HIS E:18 , HOH E:171 , NGA H:105 , BGC H:107 , SIA H:108 , HOH H:168BINDING SITE FOR RESIDUE GAL H 106
22CC4SOFTWAREHOH D:169 , HIS E:18 , ASN E:44 , ALA E:46 , THR E:47 , HIS E:94 , HOH E:117 , HOH E:148 , HIS H:13 , GAL H:106BINDING SITE FOR RESIDUE BGC H 107
23CC5SOFTWAREGLU H:11 , TYR H:12 , HIS H:13 , ILE H:58 , NGA H:105 , GAL H:106 , HOH H:156 , HOH H:157 , HOH H:171BINDING SITE FOR RESIDUE SIA H 108

(-) SS Bonds  (5, 5)

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

(-) Cis Peptide Bonds  (5, 5)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2CHB)

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 2CHB)

(-) 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 D from PDB  Type:PROTEIN  Length:103
 aligned with CHTB_VIBCH | P01556 from UniProtKB/Swiss-Prot  Length:124

    Alignment length:103
                                    31        41        51        61        71        81        91       101       111       121   
           CHTB_VIBCH    22 TPQNITDLCAEYHNTQIYTLNDKIFSYTESLAGKREMAIITFKNGAIFQVEVPGSQHIDSQKKAIERMKDTLRIAYLTEAKVEKLCVWNNKTPHAIAAISMAN 124
               SCOP domains d2chbd_ D: Cholera toxin                                                                                SCOP domains
               CATH domains 2chbD00 D:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhh.....eeeeeeee...eeeee......eeeee.....eeee........hhhhhhhhhhhhhhhhhhhh...eeeeeee.....eeeeeeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 2chb D   1 TPQNITDLCAEYHNTQIHTLNDKIFSYTESLAGKREMAIITFKNGATFQVEVPGSQHIDSQKKAIERMKDTLRIAYLTEAKVEKLCVWNNKTPHAIAAISMAN 103
                                    10        20        30        40        50        60        70        80        90       100   

Chain E from PDB  Type:PROTEIN  Length:103
 aligned with CHTB_VIBCH | P01556 from UniProtKB/Swiss-Prot  Length:124

    Alignment length:103
                                    31        41        51        61        71        81        91       101       111       121   
           CHTB_VIBCH    22 TPQNITDLCAEYHNTQIYTLNDKIFSYTESLAGKREMAIITFKNGAIFQVEVPGSQHIDSQKKAIERMKDTLRIAYLTEAKVEKLCVWNNKTPHAIAAISMAN 124
               SCOP domains d2chbe_ E: Cholera toxin                                                                                SCOP domains
               CATH domains 2chbE00 E:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhh.....eeeeeeee...eeeee......eeeee.....eeee...........hhhhhhhhhhhhhhhhh...eeeeeee.....eeeeeeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 2chb E   1 TPQNITDLCAEYHNTQIHTLNDKIFSYTESLAGKREMAIITFKNGATFQVEVPGSQHIDSQKKAIERMKDTLRIAYLTEAKVEKLCVWNNKTPHAIAAISMAN 103
                                    10        20        30        40        50        60        70        80        90       100   

Chain F from PDB  Type:PROTEIN  Length:103
 aligned with CHTB_VIBCH | P01556 from UniProtKB/Swiss-Prot  Length:124

    Alignment length:103
                                    31        41        51        61        71        81        91       101       111       121   
           CHTB_VIBCH    22 TPQNITDLCAEYHNTQIYTLNDKIFSYTESLAGKREMAIITFKNGAIFQVEVPGSQHIDSQKKAIERMKDTLRIAYLTEAKVEKLCVWNNKTPHAIAAISMAN 124
               SCOP domains d2chbf_ F: Cholera toxin                                                                                SCOP domains
               CATH domains 2chbF00 F:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhh.....eeeeeeee...eeeee......eeeee.....eeee........hhhhhhhhhhhhhhhhhhhh...eeeeeee.....eeeeeeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 2chb F   1 TPQNITDLCAEYHNTQIHTLNDKIFSYTESLAGKREMAIITFKNGATFQVEVPGSQHIDSQKKAIERMKDTLRIAYLTEAKVEKLCVWNNKTPHAIAAISMAN 103
                                    10        20        30        40        50        60        70        80        90       100   

Chain G from PDB  Type:PROTEIN  Length:103
 aligned with CHTB_VIBCH | P01556 from UniProtKB/Swiss-Prot  Length:124

    Alignment length:103
                                    31        41        51        61        71        81        91       101       111       121   
           CHTB_VIBCH    22 TPQNITDLCAEYHNTQIYTLNDKIFSYTESLAGKREMAIITFKNGAIFQVEVPGSQHIDSQKKAIERMKDTLRIAYLTEAKVEKLCVWNNKTPHAIAAISMAN 124
               SCOP domains d2chbg_ G: Cholera toxin                                                                                SCOP domains
               CATH domains 2chbG00 G:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhh.....eeeeeeee...eeeee......eeeee.....eeee..........hhhhhhhhhhhhhhhhhh...eeeeeee.....eeeeeeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 2chb G   1 TPQNITDLCAEYHNTQIHTLNDKIFSYTESLAGKREMAIITFKNGATFQVEVPGSQHIDSQKKAIERMKDTLRIAYLTEAKVEKLCVWNNKTPHAIAAISMAN 103
                                    10        20        30        40        50        60        70        80        90       100   

Chain H from PDB  Type:PROTEIN  Length:103
 aligned with CHTB_VIBCH | P01556 from UniProtKB/Swiss-Prot  Length:124

    Alignment length:103
                                    31        41        51        61        71        81        91       101       111       121   
           CHTB_VIBCH    22 TPQNITDLCAEYHNTQIYTLNDKIFSYTESLAGKREMAIITFKNGAIFQVEVPGSQHIDSQKKAIERMKDTLRIAYLTEAKVEKLCVWNNKTPHAIAAISMAN 124
               SCOP domains d2chbh_ H: Cholera toxin                                                                                SCOP domains
               CATH domains 2chbH00 H:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhh.....eeeeeeee...eeeee......eeeee.....eeee.........hhhhhhhhhhhhhhhhhhh...eeeeeee.....eeeeeeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 2chb H   1 TPQNITDLCAEYHNTQIHTLNDKIFSYTESLAGKREMAIITFKNGATFQVEVPGSQHIDSQKKAIERMKDTLRIAYLTEAKVEKLCVWNNKTPHAIAAISMAN 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, 5)

Asymmetric/Biological Unit

(-) CATH Domains  (1, 5)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2CHB)

(-) Gene Ontology  (9, 9)

Asymmetric/Biological Unit(hide GO term definitions)
Chain D,E,F,G,H   (CHTB_VIBCH | P01556)
molecular function
    GO:0046812    host cell surface binding    Interacting selectively and non-covalently with the surface of a host cell.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
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.
    GO:0006471    protein ADP-ribosylation    The transfer, from NAD, of ADP-ribose to protein amino acids.
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.
    GO:0033644    host cell membrane    Double layer of lipid molecules as it encloses host cells, and, in eukaryotes, many organelles; may be a single or double lipid bilayer; also includes associated proteins. The host is defined as the larger of the organisms involved in a symbiotic interaction.
    GO:0020002    host cell plasma membrane    The plasma membrane surrounding a host cell.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.

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 Related Entries

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

UniProtKB/Swiss-Prot
        CHTB_VIBCH | P015561chp 1chq 1ct1 1fgb 1g8z 1jr0 1md2 1rcv 1rd9 1rdp 1rf2 1s5b 1s5c 1s5d 1s5e 1s5f 1xtc 3chb 3efx 5elc 5ele 5elf 5lzg 5lzj

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 2CHB)