Clumping factor A

Clumping factor A, or ClfA, is a virulence factor from Staphylococcus aureus (S. aureus) that binds to fibrinogen.

ClfA also has been shown to bind to complement regulator I protein.^[1]

It is responsible for the clumping of blood plasma observed when adding S. aureus to human plasma. Clumping factor can be detected by the slide test.

References

↑ Hair PS, Ward MD, Semmes OJ, Foster TJ, Cunnion KM (July 2008). "Staphylococcus aureus clumping factor A binds to complement regulator factor I and increases factor I cleavage of C3b". The Journal of Infectious Diseases 198 (1): 125–33. doi:10.1086/588825. PMID 18544012.

Toxins

Clostridium:	tetani Tetanospasmin Tetanolysin 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 Staphylococcal Enterotoxin B (SEB)

Plant toxins

Invertebrate toxins

scorpion:	Androctonus australis hector insect toxin Charybdotoxin Maurotoxin Agitoxin Margatoxin Slotoxin Scyllatoxin Hefutoxin Lq2 Birtoxin Bestoxin BmKAEP Phaiodotoxin Imperatoxin Pi3

spider:	Latrotoxin Alpha-latrotoxin CSTX Cupiennins PhTx3 Stromatoxin Vanillotoxin Huwentoxin

mollusca:	Conotoxin Eledoisin Onchidal Saxitoxin Tetrodotoxin

Vertebrate toxins

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

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Clumping factor A

See also

References