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Literature summary extracted from

  • Sawada, H.; Yokosawa, H.; Someno, T.; Saino, T.; Ishii, S.
    Evidence for the participation of two sperm proteases, spermosin and acrosin, in fertilization of the ascidian, Halocynthia roretzi: inhibitory effects of leupeptin analogs on enzyme activities and fertilization (1984), Dev. Biol., 105, 246-249.
    View publication on PubMed

Inhibitors

EC Number Inhibitors Comment Organism Structure
3.4.21.99 5-pyrrolidone-2-carboxyl-Leu-DL-arginal 0.01 mM, 25% inhibition Halocynthia roretzi
3.4.21.99 dansyl-Leu-DL-arginal 0.01 mM, 24% inhibition Halocynthia roretzi
3.4.21.99 N-acetyl-Leu-Leu-arginal i.e. leupeptin, 0.01 mM, 55% inhibition Halocynthia roretzi
3.4.21.99 N-benzoyl-Leu-arginal 0.01 mM, 15% inhibition Halocynthia roretzi
3.4.21.99 N-benzyloxycarbonyl-Phe-Leu-arginal 0.01 mM, 93% inhibition Halocynthia roretzi
3.4.21.99 N-benzyloxycarbonyl-Val-Pro-arginal 0.01 mM, 99% inhibition Halocynthia roretzi
3.4.21.99 o-nitrophenyl-Leu-arginal 0.01 mM, 52% inhibition Halocynthia roretzi
3.4.21.99 p-nitrobenzyl-Leu-arginal 0.01 mM, 26% inhibition Halocynthia roretzi
3.4.21.99 Pro-Leu-arginal 0.01 mM, 27% inhibition Halocynthia roretzi

Organism

EC Number Organism UniProt Comment Textmining
3.4.21.99 Halocynthia roretzi
-
-
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.4.21.99 spermatozoon
-
 Halocynthia roretzi
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.4.21.99 tert-butyloxycarbonyl-Val-Pro-Arg-4-methylcoumarin 7-amide + H2O
-
 Halocynthia roretzi tert-butyloxycarbonyl-Val-Pro + Arg-4-methylcoumarin-7-amide
-
 ?