Protease
CA 1318872 C · Owner: M & D Research Co. Ltd. · Inventors: Yamamoto, Hiroaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed a protease having the following enzymatic properties in view of: (a) function and substrate specificity (b) optimum pH, (f) activation, (g) inhibition (a) it can hydrolyze, in particular, a peptide bond on the C-terminal side of Y of a compound X-Yin, which X is Arg, Lys or Pro, whether or not to have a peptide bond on the N-terminal side, Y is Arg and indicates a peptide bond;, (b) about 7.0 in Tris hydrochloride buffer; (f) it is activated with calcium chloride or a surfactant;, (g) it is inhibited with, p-amidinophenylmethanesulfonyl fluoride p-chloromercuribenzoic acid, a metal chelater tetraacetic acid or a heavy metal.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted June 8, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 8, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.