The Enzyme Database

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EC 3.4.21.121     
Accepted name: Lys-Lys/Arg-Xaa endopeptidase
Reaction: Cleavage of -Lys-Lys┼ and -Lys-Arg┼ bonds.
Other name(s): ASP (Aeromonas sobria)-type peptidase; Aeromonas extracellular serine protease
Comments: The enzyme is a serine peptidase, which has been shown to cleave prothrombin and prekallikrein. It hydrolyses the complement component C5 releasing complement component C5a.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Kobayashi, H., Utsunomiya, H., Yamanaka, H., Sei, Y., Katunuma, N., Okamoto, K. and Tsuge, H. Structural basis for the kexin-like serine protease from Aeromonas sobria as sepsis-causing factor. J. Biol. Chem. 284 (2009) 27655–27663. [PMID: 19654332]
2.  Nitta, H., Kobayashi, H., Irie, A., Baba, H., Okamoto, K. and Imamura, T. Activation of prothrombin by ASP, a serine protease released from Aeromonas sobria. FEBS Lett. 581 (2007) 5935–5939. [PMID: 18067862]
3.  Kobayashi, H., Takahashi, E., Oguma, K., Fujii, Y., Yamanaka, H., Negishi, T., Arimoto-Kobayashi, S., Tsuji, T. and Okamoto, K. Cleavage specificity of the serine protease of Aeromonas sobria, a member of the kexin family of subtilases. FEMS Microbiol. Lett. 256 (2006) 165–170. [PMID: 16487335]
4.  Imamura, T., Nitta, H., Wada, Y., Kobayashi, H. and Okamoto, K. Impaired plasma clottability induction through fibrinogen degradation by ASP, a serine protease released from Aeromonas sobria. FEMS Microbiol. Lett. 284 (2008) 35–42. [PMID: 18462393]
5.  Nitta, H., Imamura, T., Wada, Y., Irie, A., Kobayashi, H., Okamoto, K. and Baba, H. Production of C5a by ASP, a serine protease released from Aeromonas sobria. J. Immunol. 181 (2008) 3602–3608. [PMID: 18714034]
[EC 3.4.21.121 created 2013]
 
 


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