Pseudomonas exotoxin

The Pseudomonas exotoxin (or exotoxin A) is an exotoxin produced by Pseudomonas aeruginosa.^[1]

It inhibits elongation factor-2.^[2] It does so by ADP-ribosylation of EF2. This then causes the elongation of polypeptides to cease.(The mechanism of the toxin is similar to that of Diphtheria toxin.)

It has been investigated as a treatment for hepatitis B.^[3]

References

Toxins (enterotoxin · neurotoxin · hemotoxin · cardiotoxin · phototoxin)

Bacterial
toxins

Exotoxin

Gram
positive

Bacilli	Clostridium: tetani (Tetanospasmin) · perfringens (Alpha toxin, Enterotoxin) · difficile (A, B) · botulinum (Botox) other: Anthrax toxin · Listeriolysin O

Cocci	Streptolysin · Leukocidin (Panton-Valentine leukocidin) · Staphylococcus (Staphylococcus aureus alpha/beta/delta, Exfoliatin, Toxic shock syndrome toxin, SEB)

Actinobacteria	Cord factor · Diphtheria toxin

Gram
negative

Shiga toxin · Verotoxin/shiga-like toxin (E. coli) · E. coli heat-stable enterotoxin/enterotoxin · Cholera toxin · Pertussis toxin · Pseudomonas exotoxin · Extracellular adenylate cyclase

Mechanisms

type I (Superantigen) · type II (Pore-forming toxin) · type III (AB toxin/AB5)

Endotoxin

Lipopolysaccharide (Lipid A) · Bacillus thuringiensis delta endotoxin

Virulence
factor

Clumping factor A · Fibronectin binding protein A

Mycotoxins

Aflatoxin · Amatoxin (alpha-amanitin, beta-amanitin, · Beta-nitropropionic acid · gamma-amanitin, epsilon-amanitin) · Citrinin · Cytochalasin · Ergotamine · Fumonisin (Fumonisin B1, Fumonisin B2) · Gliotoxin · Ibotenic acid · Muscimol · Ochratoxin · Patulin · Phalloidin · Sterigmatocystin · Trichothecene · Vomitoxin · Zeranol · Zearalenone

Invertebrates

scorpion: Androctonus australis hector insect toxin, Charybdotoxin, Maurotoxin, Agitoxin, Margatoxin, Slotoxin, Scyllatoxin, Hefutoxin, Lq2, Birtoxin, Bestoxin, BmKAEP, Phaiodotoxin, Imperatoxin ·
spider: Latrotoxin (Alpha-latrotoxin) · CSTX · Cupiennins · PhTx3 · Stromatoxin · Vanillotoxin · Huwentoxin
mollusca: Conotoxin · Eledoisin · Onchidal · Saxitoxin · Tetrodotoxin

Vertebrates

fish: Ciguatera · Tetrodotoxin

amphibian: (+)-Allopumiliotoxin 267A · Batrachotoxin · Bufotoxins (Arenobufagin, Bufotalin, Bufotenin · Cinobufagin, Marinobufagin) · Epibatidine · Histrionicotoxin · Pumiliotoxin 251D · Samandarin · Samandaridine · Tarichatoxin

reptile/snake venom: Bungarotoxin (Alpha-Bungarotoxin, Beta-Bungarotoxin) · Calciseptine · Taicatoxin · Calcicludine · Cardiotoxin III

note: some toxins are produced by lower species and pass through intermediate species

M: TOX

gen / txn

pto

ant

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Pseudomonas exotoxin