Fluorogenic peptides and their use in the determination of enzymatic activities
CA 2080694 A1 · Owner: Breddam, Klaus · Inventors: Meldal, Morten; Breddam, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fluorogenic peptide exhibiting intramolecular quenching having the general formula F-A-Q-Y1 or Y2-Q-A-F wherein Q is a fluorescence quenching substituted amino acid residue (I) wherein R1, R2, R3, R4 and R5 are independently selected from hydrogen, hydroxy, alkyl, alkoxy, amino nitro, amido, halogen, aryl, or aralkyl with the proviso that at least one of R1 to R5 is hydroxy and at least one is nitro, wherein X is a spacing group which may be absent or selected from any combination of -CO-NH- -CO-O-, -S-, -S-S-, -O-, -NH- or -C6H4and n and m are, integers from 0 to 10 F is a fluorescent group having a maximum emission within the absorption band for the quenching residue Q A is , a …
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
- Filed April 16, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 16, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 2013.
- 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.