1XTC - JenaLib

Asym./Biol. Unit (Jmol Viewer)

Asym./Biol. Unit - sites (Jmol Viewer)

Title :   CHOLERA TOXIN

Authors :   R. -G. Zhang, E. Westbrook

Date :   10 Jan 96 (Deposition) - 01 Aug 96 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.40

Chains :   Asym./Biol. Unit : A,C,D,E,F,G,H

Keywords :   Enterotoxin, Toxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   R. G. Zhang, D. L. Scott, M. L. Westbrook, S. Nance, B. D. Spangler, G. G. Shipley, E. M. Westbrook
The Three-Dimensional Crystal Structure Of Cholera Toxin.
J. Mol. Biol. V. 251 563 1995
PubMed-ID: 7658473 | Reference-DOI: 10.1006/JMBI.1995.0456
(for further references see the PDB file header)

Molecule 1 - CHOLERA TOXIN
	Chains	:	A
	Organism Scientific	:	VIBRIO CHOLERAE
	Organism Taxid	:	44104
	Other Details	:	COMMERCIALLY OBTAINED FROM LIST BIOLOGICAL LABORATORY, CAMPBER CA95008
	Strain	:	569B
	Synonym	:	CTX, CHOLERAGEN

Molecule 2 - CHOLERA TOXIN
	Chains	:	C
	Organism Scientific	:	VIBRIO CHOLERAE
	Organism Taxid	:	44104
	Other Details	:	COMMERCIALLY OBTAINED FROM LIST BIOLOGICAL LABORATORY, CAMPBER CA95008
	Strain	:	569B
	Synonym	:	CTX, CHOLERAGEN

Molecule 3 - CHOLERA TOXIN
	Chains	:	D, E, F, G, H
	Organism Scientific	:	VIBRIO CHOLERAE
	Organism Taxid	:	44104
	Other Details	:	COMMERCIALLY OBTAINED FROM LIST BIOLOGICAL LABORATORY, CAMPBER CA95008
	Strain	:	569B
	Synonym	:	CTX, CHOLERAGEN

		1	2	3	4	5	6	7
Asymmetric/Biological Unit	:	A	C	D	E	F	G	H

Summary Information (see also Sequences/Alignments below)

(no "Ligand,Modified Residues,Ions" information available for 1XTC)

Asymmetric Unit (6, 6)

No.	Name	Evidence	Residues	Description
1	CAT	UNKNOWN	ARG A:7 , SER A:61 , GLU A:112	CATALYTIC SITE
2	GAD	UNKNOWN	ALA D:46 , GLU D:51 , GLN D:56 , GLN D:61 , TRP D:88 , ASN D:90 , LYS D:91	GANGLIOSIDE BINDING SITE IN CHAIN D
3	GAE	UNKNOWN	ALA E:46 , GLU E:51 , GLN E:56 , GLN E:61 , TRP E:88 , ASN E:90 , LYS E:91	GANGLIOSIDE BINDING SITE IN CHAIN E
4	GAF	UNKNOWN	ALA F:46 , GLU F:51 , GLN F:56 , GLN F:61 , TRP F:88 , ASN F:90 , LYS F:91	GANGLIOSIDE BINDING SITE IN CHAIN F
5	GAG	UNKNOWN	ALA G:46 , GLU G:51 , GLN G:56 , GLN G:61 , TRP G:88 , ASN G:90 , LYS G:91	GANGLIOSIDE BINDING SITE IN CHAIN G
6	GAH	UNKNOWN	ALA H:46 , GLU H:51 , GLN H:56 , GLN H:61 , TRP H:88 , ASN H:90 , LYS H:91	GANGLIOSIDE BINDING SITE IN CHAIN H

Asymmetric/Biological Unit

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

Asymmetric/Biological Unit

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

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

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

(no "Exon" information available for 1XTC)

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:192
 aligned with CHTA_VIBCH | P01555 from UniProtKB/Swiss-Prot  Length:258

    Alignment length:192
                                    28        38        48        58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208  
           CHTA_VIBCH    19 NDDKLYRADSRPPDEIKQSGGLMPRGQSEYFDRGTQMNINLYDHARGTQTGFVRHDDGYVSTSISLRSAHLVGQTILSGHSTYYIYVIATAPNMFNVNDVLGAYSPHPDEQEVSALGGIPYSQIYGWYRVHFGVLDEQLHRNRGYRDRYYSNLDIAPAADGYGLAGFPPEHRAWREEPWIHHAPPGCGNAPR 210
               SCOP domains d1xtc.1 A:,C: Cholera toxin                                                                                                                                                                      SCOP domains
               CATH domains 1xtcA00 A:1-192 Heat-Labile Enterotoxin, subunit A                                                                                                                                               CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .....eeee...hhhhhhh.....................hhhhhh............eeeee...hhhhh...........eeeeee.....eeehhhhhhhh...hhh.eeeee.......eeeeeee................hhhhhh.....hhh...........hhhh...hhh........... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1xtc A   1 NDDKLYRADSRPPDEIKQSGGLMPRGQSEYFDRGTQMNINLYDHARGTQTGFVRHDDGYVSTSISLRSAHLVGQTILSGHSTYYLYVLATAPNMFNVNDVLGAYSPHPDEQEVSALGGIPYSQIYGWYRVHFGVLDEQLHRNRGYRDRYYSNLDIAPAADGYGLAGFPPEHRAWREEPWIHHAPPGCGNAPR 192
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190

Chain C from PDB  Type:PROTEIN  Length:45
 aligned with CHTA_VIBCH | P01555 from UniProtKB/Swiss-Prot  Length:258

    Alignment length:45
                                   223       233       243       253     
           CHTA_VIBCH   214 SNTCDEKTQSLGVKFLDEYQSKVKRQIFSGYQSDIDTHNRIKDEL 258
               SCOP domains d1xtc.1 A:,C: Cholera toxin                   SCOP domains
               CATH domains 1xtcC00 C:196-240                             CATH domains
           Pfam domains (1) Enterotoxin_a-1xtcC01 C:196-240               Pfam domains (1)
           Pfam domains (2) Enterotoxin_a-1xtcC02 C:196-240               Pfam domains (2)
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------- PROSITE
                 Transcript --------------------------------------------- Transcript
                 1xtc C 196 SNTCDEKTQSLGVKFLDEYQSKVKRQIFSGYQSDIDTHNRIKDEL 240
                                   205       215       225       235

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 d1xtcd_ D: Cholera toxin                                                                                SCOP domains
               CATH domains 1xtcD00 D:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhhh...eeeee......eeeee.......eeee......eee........hhhh.hhhhhhhhhhhhh.......eeeee.......eeee.... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 1xtc D   1 TPQNITDLCAEYHNTQIYTLNDKIFSYTESLAGKREMAIITFKNGAIFQVEVPSSQHIDSQKKAIERMKDTLRIAYLTEAKVEKLCTWNNKTPHAIAAISMAN 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 d1xtce_ E: Cholera toxin                                                                                SCOP domains
               CATH domains 1xtcE00 E:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhhh............eeeeeee.......eeeee....eeee........hhhhhhhhhhhhhhhhhh.....................eeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 1xtc E   1 TPQNITDLCAEYHNTQIYTLNDKIFSYTESLAGKREMAIITFKNGAIFQVEVPSSQHIDSQKKAIERMKDTLRIAYLTEAKVEKLCTWNNKTPHAIAAISMAN 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 d1xtcf_ F: Cholera toxin                                                                                SCOP domains
               CATH domains 1xtcF00 F:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhh....eeeee......eeeee.......eeee.....eeee........hhhh.hhhhhhhhhhhhhh......eeeee......eeeeee... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 1xtc F   1 TPQNITDLCAEYHNTQIYTLNDKIFSYTESLAGKREMAIITFKNGAIFQVEVPSSQHIDSQKKAIERMKDTLRIAYLTEAKVEKLCTWNNKTPHAIAAISMAN 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 d1xtcg_ G: Cholera toxin                                                                                SCOP domains
               CATH domains 1xtcG00 G:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhh.....eeeee......eeeee.......eee.......eee.........hhhhhhhhhhhhhhhhhh....eeeeeee.........eeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 1xtc G   1 TPQNITDLCAEYHNTQIYTLNDKIFSYTESLAGKREMAIITFKNGAIFQVEVPSSQHIDSQKKAIERMKDTLRIAYLTEAKVEKLCTWNNKTPHAIAAISMAN 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 d1xtch_ H: Cholera toxin                                                                                SCOP domains
               CATH domains 1xtcH00 H:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
           Pfam domains (1) Enterotoxin_b-1xtcH01 H:1-102                                                                         - Pfam domains (1)
           Pfam domains (2) Enterotoxin_b-1xtcH02 H:1-102                                                                         - Pfam domains (2)
           Pfam domains (3) Enterotoxin_b-1xtcH03 H:1-102                                                                         - Pfam domains (3)
           Pfam domains (4) Enterotoxin_b-1xtcH04 H:1-102                                                                         - Pfam domains (4)
           Pfam domains (5) Enterotoxin_b-1xtcH05 H:1-102                                                                         - Pfam domains (5)
         Sec.struct. author ....hhhhhhh...eeeee......eeee........eeee.....eeee...........hhhhhhhhhhhhhhhh......eeeee......eeeeeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 1xtc H   1 TPQNITDLCAEYHNTQIYTLNDKIFSYTESLAGKREMAIITFKNGAIFQVEVPSSQHIDSQKKAIERMKDTLRIAYLTEAKVEKLCTWNNKTPHAIAAISMAN 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 '\|'

Asymmetric/Biological Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: All beta proteins (24004)

Fold: OB-fold (1179)

Superfamily: Bacterial enterotoxins (188)

Family: Bacterial AB5 toxins, B-subunits (85)

Protein domain: Cholera toxin (24)

Vibrio cholerae [TaxId: 666] (24)

1a	d1xtcd_	D:
1b	d1xtce_	E:
1c	d1xtcf_	F:
1d	d1xtcg_	G:
1e	d1xtch_	H:

Class: Alpha and beta proteins (a+b) (23004)

Fold: ADP-ribosylation (157)

Superfamily: ADP-ribosylation (157)

Family: ADP-ribosylating toxins (85)

Protein domain: Cholera toxin (9)

Vibrio cholerae [TaxId: 666] (9)

d1xtc.1

A:,C:

Asymmetric/Biological Unit

Clans(

)

Families(

)

Organisms( (-)

)

Clan: ADP-ribosyl (56)

Family: Enterotoxin_a (14)

Vibrio cholerae (6)

1a	Enterotoxin_a-1xtcC01	C:196-240
1b	Enterotoxin_a-1xtcC02	C:196-240

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

Family: Enterotoxin_b (23)

Vibrio cholerae (11)

2a	Enterotoxin_b-1xtcH01	H:1-102
2b	Enterotoxin_b-1xtcH02	H:1-102
2c	Enterotoxin_b-1xtcH03	H:1-102
2d	Enterotoxin_b-1xtcH04	H:1-102
2e	Enterotoxin_b-1xtcH05	H:1-102

Asymmetric/Biological Unit(hide GO term definitions)

Chain A,C (CHTA_VIBCH | P01555)

molecular function
	GO:0003950	NAD+ ADP-ribosyltransferase activity	Catalysis of the reaction: NAD+ + (ADP-D-ribosyl)(n)-acceptor = nicotinamide + (ADP-D-ribosyl)(n+1)-acceptor.
	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.
	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).
	GO:0016740	transferase activity	Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
	GO:0016757	transferase activity, transferring glycosyl groups	Catalysis of the transfer of a glycosyl group from one compound (donor) to another (acceptor).
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:0030819	positive regulation of cAMP biosynthetic process	Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of the nucleotide cAMP (cyclic AMP, adenosine 3',5'-cyclophosphate).
	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.

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.

Asymmetric/Biological Unit
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	Ligands, Modified Residues, Ions
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		GAG	[ RasMol ]	+environment [ RasMol ]
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	Cis Peptide Bonds
		Glu A:177 - Pro A:178	[ RasMol ]
		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 ]

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	1xtc
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	CHTB_VIBCH \| P01556
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(no "Related Entries Specified in the PDB File" available for 1XTC)

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (0, 0)

Sites (6, 6)

SS Bonds (6, 6)

Cis Peptide Bonds (6, 6)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

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SCOP Domains (2, 6)

CATH Domains (3, 7)

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