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Title :   HEAT-LABILE ENTEROTOXIN B-PENTAMER COMPLEXED WITH NITROPHENYL GALACTOSIDE 2A

Authors :   D. D. Mitchell, J. C. Pickens, K. Korotkov, E. Fan, W. G. J. Hol

Date :   11 Jul 03 (Deposition) - 09 Mar 04 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.99

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

Keywords :   Pentamer, Monovalent, Toxin, Inhibitor, Toxin Inhibitor (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   D. D. Mitchell, J. C. Pickens, K. Korotkov, E. Fan, W. G. J. Hol
3, 5-Substituted Phenyl Galactosides As Leads In Designing Effective Cholera Toxin Antagonists; Synthesis And Crystallographic Studies
Bioorg. Med. Chem. V. 12 907 2004
PubMed-ID: 14980603 | Reference-DOI: 10.1016/J.BMC.2003.12.019
(for further references see the PDB file header)

Molecule 1 - HEAT-LABILE ENTEROTOXIN B SUBUNIT
	Chains	:	D, E, F, G, H
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	LAMBDA-PR
	Expression System Strain	:	JM105
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Gene	:	ELTB
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	562
	Synonym	:	LT-B

		1	2	3	4	5
Asymmetric/Biological Unit	:	D	E	F	G	H

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (1, 5)

No.	Name	Count	Type	Full Name
1	1DM	5	Ligand/Ion	N-(2-MORPHOLIN-4-YL-1-MORPHOLIN-4-YLMETHYL-ETHYL)-3-NITRO-5-(3,4,5-TRIHYDROXY-6-HYDROXYMETHYL-TETRAHYDRO-PYRAN-2-YLOXY)-BENZAMIDE

Asymmetric Unit (5, 5)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	TYR D:12 , GLU D:51 , GLN D:56 , GLN D:61 , TRP D:88 , ASN D:90 , LYS D:91 , HOH D:1532 , HOH D:1556 , GLY E:33	BINDING SITE FOR RESIDUE 1DM D 104
2	AC2	SOFTWARE	TYR E:12 , GLU E:51 , GLN E:56 , HIS E:57 , GLN E:61 , TRP E:88 , ASN E:90 , LYS E:91 , HOH E:1559 , GLY F:33	BINDING SITE FOR RESIDUE 1DM E 105
3	AC3	SOFTWARE	TYR F:12 , ARG F:13 , GLU F:51 , GLN F:56 , HIS F:57 , GLN F:61 , TRP F:88 , ASN F:90 , LYS F:91 , HOH F:1545 , HOH F:1546 , GLY G:33 , ARG H:13	BINDING SITE FOR RESIDUE 1DM F 106
4	AC4	SOFTWARE	GLN D:16 , TYR D:18 , HOH D:1142 , TYR G:12 , ARG G:13 , GLU G:51 , GLN G:56 , HIS G:57 , GLN G:61 , TRP G:88 , ASN G:90 , LYS G:91 , HOH G:1551 , HOH G:1554 , GLY H:33	BINDING SITE FOR RESIDUE 1DM G 107
5	AC5	SOFTWARE	GLY D:33 , TYR H:12 , GLU H:51 , GLN H:56 , HIS H:57 , GLN H:61 , TRP H:88 , ASN H:90 , LYS H:91 , HOH H:1515 , HOH H:1548 , HOH H:1550	BINDING SITE FOR RESIDUE 1DM H 108

Asymmetric/Biological Unit

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

Asymmetric/Biological Unit

No.	Residues
1	Thr D:92	-	Pro D:93
2	Thr E:92	-	Pro E:93
3	Thr F:92	-	Pro F:93
4	Thr G:92	-	Pro G:93
5	Thr H:92	-	Pro H:93

Asymmetric/Biological Unit (1, 5)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_ELBP_ECOLX_001 *	T	96	A	ELBP_ECOLX	---	---	D/E/F/G/H	T	75	A
	* ID not provided by source

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

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

(no "Exon" information available for 1PZI)

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 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 d1pzid_ D: Heat-labile toxin                                                                            SCOP domains
               CATH domains 1pziD00 D:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhh....eeeeeeee...eeeee......eeeee.....eeee.........hhhhhhhhhhhhhhhhhhh...eeeeeee.....eeeeeeeee. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 1pzi 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 d1pzie_ E: Heat-labile toxin                                                                            SCOP domains
               CATH domains 1pziE00 E:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhh....eeeeeeee...eeeee......eeeee.....eeee.........hhhhhhhhhhhhhhhhhhh...eeeeeee.....eeeeeeeee. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 1pzi 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 d1pzif_ F: Heat-labile toxin                                                                            SCOP domains
               CATH domains 1pziF00 F:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhh...eeeeeeeee..eeeee......eeeee.....eeee.........hhhhhhhhhhhhhhhhhhh..eeeeeeee.....eeeeeeeee. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 1pzi 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 d1pzig_ G: Heat-labile toxin                                                                            SCOP domains
               CATH domains 1pziG00 G:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhh...eeeeeeee...eeeee......eeeee.....eeee.........hhhhhhhhhhhhhhhhhhh...eeeeeee.....eeeeeeeee. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 1pzi 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 d1pzih_ H: Heat-labile toxin                                                                            SCOP domains
               CATH domains 1pziH00 H:1-103  [code=2.40.50.110, no name defined]                                                    CATH domains
           Pfam domains (1) Enterotoxin_b-1pziH01 H:1-102                                                                         - Pfam domains (1)
           Pfam domains (2) Enterotoxin_b-1pziH02 H:1-102                                                                         - Pfam domains (2)
           Pfam domains (3) Enterotoxin_b-1pziH03 H:1-102                                                                         - Pfam domains (3)
           Pfam domains (4) Enterotoxin_b-1pziH04 H:1-102                                                                         - Pfam domains (4)
           Pfam domains (5) Enterotoxin_b-1pziH05 H:1-102                                                                         - Pfam domains (5)
         Sec.struct. author ...hhhhhhhh...eeeeeeee...eeeeeee..eeeeeee.....eeee.........hhhhhhhhhhhhhhhhhhh...eeeeeee.....eeeeeeeee. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------A---------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 1pzi 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 '\|'

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: Heat-labile toxin (24)

Escherichia coli, type IB [TaxId: 562] (21)

1a	d1pzid_	D:
1b	d1pzie_	E:
1c	d1pzif_	F:
1d	d1pzig_	G:
1e	d1pzih_	H:

Asymmetric/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Beta (13760)

Architecture: Beta Barrel (4804)

Topology: OB fold (Dihydrolipoamide Acetyltransferase, E2P) (1040)

Homologous Superfamily: [code=2.40.50.110, no name defined] (136)

Escherichia coli. Organism_taxid: 562. (3)

1a	1pziD00	D:1-103
1b	1pziE00	E:1-103
1c	1pziF00	F:1-103
1d	1pziG00	G:1-103
1e	1pziH00	H:1-103

Asymmetric/Biological Unit

Clans(

)

Families(

)

Organisms( (-)

)

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

Family: Enterotoxin_b (23)

Escherichia coli (12)

1a	Enterotoxin_b-1pziH01	H:1-102
1b	Enterotoxin_b-1pziH02	H:1-102
1c	Enterotoxin_b-1pziH03	H:1-102
1d	Enterotoxin_b-1pziH04	H:1-102
1e	Enterotoxin_b-1pziH05	H:1-102

Asymmetric/Biological Unit(hide GO term definitions)

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.

Asymmetric/Biological Unit
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Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 5)

Sites (5, 5)

SS Bonds (5, 5)

Cis Peptide Bonds (5, 5)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (1, 5)

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