Proteases from streptomyces and use thereof in protein...

C - Chemistry – Metallurgy – 12 – N

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C12N 15/57 (2006.01) C07K 5/083 (2006.01) C07K 14/475 (2006.01) C07K 14/505 (2006.01) C07K 14/53 (2006.01) C07K 14/535 (2006.01) C07K 14/54 (2006.01) C12N 9/48 (2006.01) C12N 9/52 (2006.01) C12N 15/62 (2006.01) C12N 15/67 (2006.01) C12N 15/76 (2006.01) C12P 21/06 (2006.01) G01N 33/535 (2006.01)

Patent

CA 2179623

A family of proteases endogenous to Streptomyces cells degrades exogenous proteins secreted from Streptomyces host cells. The previously unidentified proteases include (1) tripeptidyl aminopeptidase designated "Tap", (2) tripeptidyl aminopeptidase designated "Ssp", (3) X-Pro-metalloendoproteinase designated "XP-Mep", and (4) other proteases derived from Streptomyces which degrade certain substrates under certain conditions. Degradation was alleviated by selective inhibition of secreted proteases or by using improved strains which lack or have impaired degradation proteases. An irreversible inhibitor was designed based upon the mechanism and substrate specificity of the target protease. Hosts expressing proteases were also produced. Uses of the proteases include immunoassays and proteolytic removal of peptides and polypeptides to improve secretion of exogenous proteins.

Une famille de protéases endogènes des cellules de Streptomyces dégrade les protéines exogènes sécrétées par les cellules hôtes de Streptomyces. Les protéines précedemment non identifiées comprennent (1) une aminopeptidase tripeptidyle nommée "Tap", (2) une aminopeptidase tripeptidyle nommée "Ssp", (3) une X-Pro-Metalloendoprotéinase nommée "XP-Mep", et (4) d'autres protéases dérivées de Streptomyces qui dégradent certains substrats dans certaines conditions. On atténue la dégradation par inhibition sélective des protéases sécrétées ou au moyen de souches améliorées exemptes de protéases de dégradation ou présentant des protéases de dégradation défectueuses. On a mis au point un inhibiteur irréversible fondé sur le mécanisme et la spécificité de substrat de la protéase cible. On a également produit des hôtes exprimant des protéases. Lesdites protéases peuvent être utilisées dans des dosages immunologiques et pour l'extraction protéolytique de peptides et de polypeptides en vue d'améliorer la sécrétion de protéines exogènes.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Proteases from streptomyces and use thereof in protein... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Proteases from streptomyces and use thereof in protein..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Proteases from streptomyces and use thereof in protein... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1345719

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.