ID   3.4.21.120
DE   oviductin.
AN   oviductal protease.
AN   ovochymase-2.
CA   Preferential cleavage at 371-Gly-Ser-Arg-|-Trp-374 of glycoprotein gp43
CA   in Xenopus laevis coelemic egg envelope to yield gp41.
CC   -!- The egg envelope of Xenopus laevis is modified during transit of the
CC       egg through the pars rectus oviduct, changing the egg envelope from
CC       an unfertilizable form to a fertilizable form.
CC   -!- This process involves the conversion of glycoprotein gp43 to gp41
CC       (ZPC) by the pars recta protease oviductin.
CC   -!- It is thought that the enzymatically active protease molecule
CC       comprises the N-terminal protease domain coupled to two C-terminal
CC       CUB domains, which are related to the mammalian spermadhesin
CC       molecules implicated in mediating sperm-envelope interactions.
CC   -!- Also found in Bufo japonicus.
CC   -!- Belongs to peptidase family S1.
DR   Q90WD8, OVCH2_BUFJA;  Q66TN7, OVCH2_RHIAE;  P79953, OVCH2_XENLA;
//