Mutant aequorea victoria fluorescent proteins having...

C - Chemistry – Metallurgy – 12 – N

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C12N 15/12 (2006.01) C07K 14/435 (2006.01) C07K 19/00 (2006.01) C12N 15/62 (2006.01) C12N 15/64 (2006.01) C12N 15/65 (2006.01)

Patent

CA 2184763

The present invention is directed to mutants of the jellyfish Aequorea victoria green fluorescent protein (GFP) having at least 5 and preferably greater than 20 times the specific green fluorescence of the wild type protein. In other embodiments, the invention comprises mutant blue fluorescent proteins (BFPs) that emit an enhanced blue fluorescence. The invention also encompasses the expression of nucleic acids that encode a mutant GFP or BFP in a wide variety of engineered host cells, and the isolation of engineered proteins having increased fluorescent activity. The novel mutants of the present invention allow for a significantly more sensitive detection of fluorescence in engineered host cells than is possible with GFP or with its known mutants. Thus, the mutant fluorescent proteins provided herein can be used as sensitive reporter molecules to detect the cell and tissue-specific expression and subcellular compartmentalization of GFP or BFP mutants, or of chimeric proteins comprising GFP or BFP mutants fused to a regulatory sequence or to a second protein sequence.

La présente invention a trait à des mutants de la protéine verte fluorescente (PVF) de la méduse Aequorea victoria ayant au moins 5 et de préférence 20 fois la fluorescence verte spécifique de la protéine sauvage. Dans d'autres situations, l'invention porte sur des protéines mutantes bleues fluorescentes (PBF) qui émettent une fluorescence accrue. L'invention englobe également l'expression d'acides nucléiques qui codent une PVF ou une PBF mutante dans une grande variété de cellules-hôtes bio-manipulées et l'isolement de protéines bio-manipulées ayant une activité fluorescente accrue. Les nouveaux mutants de la présente invention permettent la détection beaucoup plus sensible de la fluorescence dans des cellules-hôtes bio-manipulées que ce qu'il est possible d'obtenir avec la PVF ou avec ses propres mutants. Ainsi, les protéines fluorescentes mutantes décrites ici peuvent être utilisées comme ligands pour détecter l'expression spécifique à la cellule et au tissu et la compartimentalisation infracellulaire des mutants de PVF et de PBF, ou de protéines chimériques comprenant des mutants de PVF et de PBF soudées à des séquences régulatrices ou à une seconde séquence protéique.

LandOfFree

Say what you really think

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

Rating

Mutant aequorea victoria fluorescent proteins having... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mutant aequorea victoria fluorescent proteins having..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mutant aequorea victoria fluorescent proteins having... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1692782

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