Small functional units of antibody heavy chain variable regions

A - Human Necessities – 61 – K

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61K 35/14 (2006.01) A61K 39/395 (2006.01) C07K 1/00 (2006.01) C07K 16/28 (2006.01) C07K 16/42 (2006.01) C12N 15/00 (2006.01) C12N 15/10 (2006.01) C12P 21/08 (2006.01)

Patent

CA 2351669

It is an object of the present invention to provide small antibody-derived recognition units for experimental, medical, and drug design purposes. A single-domain VH phage-displayed library that is based on a natural framework scaffold of a mouse monoclonal antibody with a unique VH/VL interface and a randomized CDR3 was generated. This library was displayed without any mutations or modifications in the original interface framework residues. The library was used to select phage clones that bind specifically to protein antigens with affinity in the nanomolar range. The VH domains were subsequently produced as soluble proteins at very high yields by expressing them in E. Coli as insoluble inclusion bodies and in-vitro refolding. These small functional modules of antibodies were termed "Microbodies" and were fully characterized by means of biochemical and biophysical properties as well as binding properties to several antigens of interest.

La présente invention concerne des petites unités de reconnaissance dérivées d'anticorps à des fins expérimentales, médicales et de recherche pharmaceutique. On a réalisé une échantillothèque de VH-phages mono-domaines reposant sur une charpente naturelle d'un anticorps monoclonal de la souris comportant une unique interface VH-VL ainsi qu'un CDR3 randomisé. Cette échantillothèque est apparue sans mutation ni modification affectant les restes de la charpente d'interface d'origine. L'échantillothèque a servi à sélectionner des clones phages qui se lient spécifiquement à des protéines antigènes avec une affinité dans la plage du nanomolaire. On a ensuite produit les domaines VH sous forme de protéines solubles avec des rendements très élevés, et à cet effet, on les a exprimés dans E. Coli sous forme de corps d'inclusion insolubles et de repliage in-vitro. Ces petits modules fonctionnels des anticorps, qui constituent ce qu'on est convenu d'appeler des "microcorps", ont été totalement caractérisés au moyen des propriétés biochimiques et biophysiques ainsi que des propriétés de liaison sur plusieurs antigènes étudiés.

LandOfFree

Say what you really think

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

Rating

Small functional units of antibody heavy chain variable regions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Small functional units of antibody heavy chain variable regions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Small functional units of antibody heavy chain variable regions will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1587215

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