1.- Oxidoreductases
2.- Transferases
3.- Hydrolases
4.- Lyases
5.- Isomerases
6.- Ligases
Unclassified Enzymes

Binding
Folding Proteins
Immunological Proteins
Mobility/Motility
Other
Toxins/Viral Proteins
Transcription/Translation
Transport
Cell Cycle
Signal Hormone
Structural

TOXIN_VIRAL

Families belonging to this class:

90% Homology Family
Leader: 1MD2
CHOLERA TOXIN B-PENTAMER WITH DECAVALENT LIGAND BMSC-0013
PDB id Binding data Representative ligand
1MD2 kd ~ 40.0 nM 233-SQ
1CT1   GAL-NGA-GAL-GLC-SIA
1EEI IC50 = 0.7 mM GAA
1G8Z   GAL
1JR0 kd = 12.0 uM A24
1LLR   FNG-LNQ
1PZJ IC50 = 0.32 mM J15
1PZK IC50 = 0.2 mM J12
1RCV IC50 = 29.0 uM BV1
1RD9 IC50 = 13.0 uM BV2
1RDP IC50 = 9.0 uM BV3
1RF2 IC50 = 17.0 uM BV4
2CHB   GAL-NGA-GAL-SIA
3CHB   GAL-NGA-GAL-GLC-SIA
3EFX   BGC-FUC-GAL-FUC-A2G
90% Homology Family
Leader: 1JQY
HEAT-LABILE ENTEROTOXIN B-PENTAMER WITH LIGAND BMSC-0010
PDB id Binding data Representative ligand
1JQY ki = 12.0 uM A32
1DJR   GAL-BEZ
1EEF IC50 = 1.2 mM GAL
1EFI IC50 = 12.0 mM GAT
1FD7 IC50 = 14.0 mM AI1
1LT5   TDG
1LT6   GAA
1PZI Kd = 60.0 uM 1DM
90% Homology Family
Leader: 1C4Q
MUTATED SHIGA-LIKE TOXIN B SUBUNIT (F30A/W34A
) COMPLEXED WITH RECEPTOR GB3 ANALOGUE
PDB id Binding data Representative ligand
1C4Q   GAL-GAL-GLC
1CQF   GAL-GLC
1D1I   GAL-GAL
1D1K   GAL-GLC
1QNU   GAL-GAL-GLC-EMB-MEC
90% Homology Family
Leader: 1TYU
STRUCTURE OF TAILSPIKE-PROTEIN
PDB id Binding data Representative ligand
1TYU   GAL-MAN-TYV-RAM-GAL-MAN-TYV-RAM
1TYW   GAL-MAN-TYV-RAM-GAL-MAN-TYV-RAM-GLC
1TYX   GAL-MAN-ABE-RAM-GAL-MAN-ABE-RAM
90% Homology Family
Leader: 3DWQ
CRYSTAL STRUCTURE OF THE A-SUBUNIT OF THE AB5 TOXIN FROM E.
PDB id Binding data Representative ligand
3DWQ Ki ~ 2.0 mM NGC-GAL-NGA-POL-AZI
3DWP   NGC
90% Homology Family
Leader: 2VL8
CRYSTAL STRUCTURE OF THE CATALYTIC DOMAIN OF LETHAL TOXIN
PDB id Binding data Representative ligand
2VL8 ic50 ~ 30.0 uM CTS
2VKH   UPG
90% Homology Family
Leader: 1YVZ
HEPATITIS C VIRUS RNA POLYMERASE GENOTYPE 2A IN COMPLEX
PDB id Binding data Representative ligand
1YVZ IC50 = 4.4 uM JPC
1YVX IC50 = 8.0 uM IPC
90% Homology Family
Leader: 1XT3
STRUCTURE BASIS OF VENOM CITRATE-DEPENDENT HEPARIN SULFATE-
PDB id Binding data Representative ligand
1XT3 Kd = 2.01 uM IDU-SGN-IDU-SGN-IDU-SGN
2BHI   SFT
90% Homology Family
Leader: 1UXA
ADENOVIRUS AD37 FIBRE HEAD IN COMPLEX WITH SIALYL-LACTOSE
PDB id Binding data Representative ligand
1UXA Kd = 5.0 mM SIA-GAL
1UXB Kd = 7.0 mM SIA-GAL
90% Homology Family
Leader: 1SVM
CO-CRYSTAL STRUCTURE OF SV40 LARGE T ANTIGEN HELICASE
PDB id Binding data Representative ligand
1SVM   ATP
1SVL   ADP
90% Homology Family
Leader: 1RVX
1934 H1 HEMAGGLUTININ IN COMPLEX WITH LSTA
PDB id Binding data Representative ligand
1RVX   NAG
1RVZ   SIA-GAL-NAG
90% Homology Family
Leader: 1RV0
1930 SWINE H1 HEMAGGLUTININ COMPLEXED WITH LSTA
PDB id Binding data Representative ligand
1RV0   NAG
1RVT   SIA-GAL-NAG-GAL-GLC
90% Homology Family
Leader: 1M5J
CRYSTAL STRUCTURE OF CYANOVIRIN-N COMPLEXED TO
A SYNTHETIC HEXAMANNOSIDE
PDB id Binding data Representative ligand
1M5J kd = 2.6 uM MAN-MAN-MAN-OPM-MAN-MAN
1M5M kd = 0.27 M NAG-NAG-MAN-MAN-MAN-MAN-MAN-MAN-MAN-MAN-MAN
90% Homology Family
Leader: 1LTI
HEAT-LABILE ENTEROTOXIN (LT-I) COMPLEX WITH T-ANTIGEN
PDB id Binding data Representative ligand
1LTI   GAL
1LTA   GAL
90% Homology Family
Leader: 1LT3
HEAT-LABILE ENTEROTOXIN DOUBLE MUTANT N40C/G166C
PDB id Binding data Representative ligand
1LT3   GAL-GLC
1LT4   GAL-GLC
90% Homology Family
Leader: 1JSO
STRUCTURE OF AVIAN H5 HAEMAGGLUTININ BOUND TO
LSTC RECEPTOR ANALOG
PDB id Binding data Representative ligand
1JSO   SIA
1JSN   SIA-GAL-NAG
90% Homology Family
Leader: 1JSH
CRYSTAL STRUCTURE OF H9 HAEMAGGLUTININ COMPLEXED
WITH LSTA RECEPTOR ANALOG
PDB id Binding data Representative ligand
1JSH   SIA-GAL
1JSI   SIA-GAL-NAG-GAL-GLC
90% Homology Family
Leader: 1GIQ
CRYSTAL STRUCTURE OF THE ENZYMATIC COMPONET OF
IOTA-TOXIN FROM CLOSTRIDIUM PERFRINGENS WITH NADH
PDB id Binding data Representative ligand
1GIQ   NAD
1GIR   NDP
90% Homology Family
Leader: 1LRI
BETA-CRYPTOGEIN-CHOLESTEROL COMPLEX
PDB id Binding data Representative ligand
1LRI   CLR
1BXM   ERG
90% Homology Family
Leader: 3LKF
LEUKOCIDIN F (HLGB) FROM STAPHYLOCOCCUS AUREUS
WITH PHOSPHOCHOLINE BOUND
PDB id Binding data Representative ligand
3LKF   POC
90% Homology Family
Leader: 3EEB
STRUCTURE OF THE V. CHOLERAE RTX CYSTEINE PROTEASE DOMAIN
PDB id Binding data Representative ligand
3EEB Kd = 1.3 uM IHP
90% Homology Family
Leader: 2Z8L
CRYSTAL STRUCTURE OF THE STAPHYLOCOCCAL SUPERANTIGEN-LIKE
PDB id Binding data Representative ligand
2Z8L   NAG-FUC-SIA-GAL
90% Homology Family
Leader: 2Q6M
CATALYTIC FRAGMENT OF CHOLIX TOXIN FROM VIBRIO CHOLERAE IN
PDB id Binding data Representative ligand
2Q6M Kd = 0.51 uM P34
90% Homology Family
Leader: 2NUN
THE STRUCTURE OF THE TYPE III EFFECTOR AVRB COMPLEXED WITH
PDB id Binding data Representative ligand
2NUN   ADP
90% Homology Family
Leader: 2GWL
CRYSTAL STRUCTURE OF THE SALMONELLA SPVB ATR
DOMAIN IN COMPLEX WITH NADH
PDB id Binding data Representative ligand
2GWL   NAD
90% Homology Family
Leader: 2G7C
CLOSTRIDIUM DIFFICILE TOXIN A FRAGMENT BOUND
TO AGAL(1,3) BGAL(1,4)BGLCNAC
PDB id Binding data Representative ligand
2G7C   GLA-GAL-NAG
90% Homology Family
Leader: 2BOS
A MUTANT SHIGA-LIKE TOXIN IIE BOUND TO ITS RECEPTOR
PDB id Binding data Representative ligand
2BOS   GAL-GAL-GLC-BUT
90% Homology Family
Leader: 1ZBA
FOOT-AND-MOUTH DISEASE VIRUS SEROTYPE A1061 COMPLEXED WITH
PDB id Binding data Representative ligand
1ZBA   SGN-IDU-SGN
90% Homology Family
Leader: 1VPS
POLYOMAVIRUS VP1 PENTAMER COMPLEXED WITH A DISIALYLATED
HEXASACCHARIDE
PDB id Binding data Representative ligand
1VPS   SIA-GAL-NAG-SIA
90% Homology Family
Leader: 1QQP
FOOT-AND-MOUTH DISEASE VIRUS/ OLIGOSACCHARIDE
RECEPTOR COMPLEX.
PDB id Binding data Representative ligand
1QQP   IDU-SGN-IDU-SGN-IDU
90% Homology Family
Leader: 1PVC
REFINEMENT OF THE SABIN STRAIN OF TYPE 3 POLIOVIRUS
AT 2.4 ANGSTROMS AND THE CRYSTAL STRUCTURES
OF ITS VARIANTS AT 2.9 ANGSTROMS RESOLUTION
PDB id Binding data Representative ligand
1PVC   ILE-SER-GLU-VAL
90% Homology Family
Leader: 1OKE
CRYSTAL STRUCTURE OF THE DENGUE 2 VIRUS ENVELOPE
PROTEIN IN COMPLEX WITH N-OCTYL-BETA-D-GLUCOSIDE
PDB id Binding data Representative ligand
1OKE   BOG
90% Homology Family
Leader: 1ND2
THE STRUCTURE OF RHINOVIRUS 16
PDB id Binding data Representative ligand
1ND2   MYR
90% Homology Family
Leader: 1NCQ
THE STRUCTURE OF HRV14 WHEN COMPLEXED WITH PLECONARIL, AN
PDB id Binding data Representative ligand
1NCQ   W11
90% Homology Family
Leader: 1MWH
REOVIRUS POLYMERASE LAMBDA3 BOUND TO MRNA CAP ANALOG
PDB id Binding data Representative ligand
1MWH   GTG
90% Homology Family
Leader: 1MG1
HTLV-1 GP21 ECTODOMAIN/MALTOSE-BINDING PROTEIN CHIMERA
PDB id Binding data Representative ligand
1MG1   MAL
90% Homology Family
Leader: 1MFI
CRYSTAL STRUCTURE OF MACROPHAGE MIGRATION INHIBITORY
FACTOR COMPLEXED WITH (E)-2-FLUORO-P-HYDROXYCINNAMATE
PDB id Binding data Representative ligand
1MFI ki = 2.6 uM FHC
90% Homology Family
Leader: 1M3Y
THE STRUCTURE OF MAJOR CAPSID PROTEIN OF A LARGE
, LIPID CONTAINING, DNA VIRUS
PDB id Binding data Representative ligand
1M3Y   NAG
90% Homology Family
Leader: 1LVM
CATALYTICALLY ACTIVE TOBACCO ETCH VIRUS PROTEASE
COMPLEXED WITH PRODUCT
PDB id Binding data Representative ligand
1LVM   ACE-GLU-ASN-LEU-TYR-PHE-GLN-SER-GLY-THR
90% Homology Family
Leader: 1LVB
CATALYTICALLY INACTIVE TOBACCO ETCH VIRUS PROTEASE
COMPLEXED WITH SUBSTRATE
PDB id Binding data Representative ligand
1LVB   THR-GLU-ASN-LEU-TYR-PHE-GLN-SER-GLY-THR
90% Homology Family
Leader: 1LTT
LACTOSE BINDING TO HEAT-LABILE ENTEROTOXIN REVEALED
BY X-RAY CRYSTALLOGRAPHY
PDB id Binding data Representative ligand
1LTT   GAL-GLC
90% Homology Family
Leader: 1KQR
CRYSTAL STRUCTURE OF THE RHESUS ROTAVIRUS VP4
SIALIC ACID BINDING DOMAIN IN COMPLEX WITH 2
-O-METHYL-ALPHA-D-N-ACETYL NEURAMINIC ACID
PDB id Binding data Representative ligand
1KQR   MNA
90% Homology Family
Leader: 1H2C
EBOLA VIRUS MATRIX PROTEIN VP40 N-TERMINAL DOMAIN
IN COMPLEX WITH RNA (HIGH-RESOLUTION VP40[55-194] VARIANT).
PDB id Binding data Representative ligand
1H2C   U-G-A
90% Homology Family
Leader: 1DTP
THE STRUCTURE OF THE ISOLATED CATALYTIC DOMAIN
OF DIPHTHERIA TOXIN
PDB id Binding data Representative ligand
1DTP   APU
90% Homology Family
Leader: 1BAI
STRUCTURAL BASIS FOR SPECIFICITY OF RETROVIRAL PROTEASES
PDB id Binding data Representative ligand
1BAI ki = 20.0 nM ARG-VAL-LEU-PHE-GLU-ALA-NLE-NH2