7-(4-methyl)coumarylamide
Reaction: Hydrolysis of the inner layer of fish egg envelope. Also hydrolysis of casein and small molecule substrates such as succinyl-Leu-Leu-Val-Tyr7-(4-methyl)coumarylamide
Other names: teleost hatching enzyme (component); low choriolytic enzyme (LCE)
Comments: Known from the teleost fish Oryzias latipes (medaka). Efficient dissolution of the egg membrane requires concerted action with choriolysin H. A 24 kDa peptidase family M12 (astacin family)
Links to other databases: BRENDA, EXPASY, KEGG, MEROPS, Metacyc, CAS registry number: 177529-15-6
References
1. Yasumasu, S., Iuchi, I. and Yamagami, K. Medaka hatching enzyme consists of two kinds of proteases which act cooperatively. Zool. Sci. 5 (1988) 191-195
2. Yasumasu, S., Iuchi, I. and Yamagami, K. Isolation and some properties of low choriolytic enzyme (LCE), a component of the hatching enzyme of the teleost, Oryzias latipes. J. Biochem. (Tokyo) 105 (1989) 212-218. [PMID: 2656665]
3. Yasumasu, S., Katow, S., Hamazaki, T.S., Iuchi, I. and Yamagami, K. Two constituent proteases of a teleostean hatching enzyme: concurrent syntheses and packaging in the same secretory granules in discrete arrangement. Dev. Biol. 149 (1992) 349-356. [PMID: 1730389]
4. Yasumasu, S., Yamada, K., Akasaka, K., Mitsunaga, K., Iuchi, I., Shimada, H. and Yamagami, K. Isolation of cDNAs for LCE and HCE, two constituent proteases of the hatching enzyme of Oryzias latipes, and concurrent expression of their mRNAs during development. Dev. Biol. 153 (1992) 250-258. [PMID: 1397682]