Xoma Corporation

Royalty Pharma Finance Trust

Bristol-Myers Squibb Compnay

Bioventure Investments, Kft

Pharmaceutical Royalties, L.l.c.

Alvin Y Liu

Randy R Robinson

Marc D Better

Gary L Wilcox

Shau-Ping Lei

Randolph Wall

Jeffrey A Ledbetter

Arnold H Horwitz

Karl E Hellstrom

Ingegred Hellstrom

Arnold H Horowitz

A chimeric antibody with human constant region and murine variable region, having specificity to a 35 kDA polypeptide (Bp35(CD20)) expressed on the surface of human B cells, methods of production, and uses.

Chimeric antibody with specificity to human B cell surface antigen

Modular assembly of antibody genes, antibodies prepared thereby and use

The invention is directed to the pectate lyase B secretion signal and its use to express operably linked sequences in bacterial hosts.

Pectate lyase signal sequence

The present invention relates to a chimeric antibody molecule comprising two heavy chains and two light chains, each of the chains comprising a variable region and a human constant region, said antibody having specificity for the antigen bound by the 2H7 murine monoclonal antibody. The invention is also related to methods of use for such antibody.

The invention relates to cDNA genetic sequences, vehicles containing same as well as hosts transformed therewith, for the production of chimeric immunoglobulin molecules, functional fragments thereof and immunoglobulin derivatives exhibiting novel functional properties comprising human constant region modules and non-human variable region modules, or for class switching antibody molecules and/or chains. The invention also relates to DNA coding for pectate lyase signal peptide has been cloned on a plasmid to create a secretion vector which is capable of producing a chosen protein which is transported across the bacterial membrane. The secretion vector has been used to secrete extracellular thaumatin and extracellular chimeric antibody fragments. The proteins produced by this vector have biological activity. The thaumatin is properly folded and the antibody fragments are capable of binding antigens on target cancer cells. The invention also relates to the secretion of chimeric antibodies and fragments thereof from yeast in functional form.

The present invention relates to a eukaryotic host cell that contains DNA encoding a chimeric antibody molecule comprising two heavy chains and two light chains, each of the chains comprising a variable region and a human constant region, said antibody having specificity for the antigen bound by the 2H7 murine monoclonal antibody. The invention is also related to methods of producing the antibody.

The invention relates to the secretion of heavy chain immunoglobulin fragments and light chain immunoglobulins from prokaryotic hosts using a prokaryotic secretion signal peptide wherein the heavy chain fragments and light chains are capable of associating to form an antigen binding antibody fragment.

The invention relates to cDNA genetic sequences, vehicles containing same as well as hosts transformed therewith, for the production of chimeric immunoglobulin molecules, functional fragments thereof and immunoglobulin derivatives exhibiting novel functional properties comprising human constant region modules and non-human variable region modules, or for class switching antibody molecules and/or chains. The invention also relates to DNA coding for pectate lyase signal peptide has been cloned on a plasmid to create a secretion vector which is capable of producing a chosen protein which is transported across the bacterial membrane. The secretion vector has been used to secrete extracellular thaumatin and extracellular chimeric antibody fragments. The proteins produced by this vector have biological activity. The thaumatin is properly folded and the antibody fragments are capable-of binding antigens on target cancer cells. The invention also relates to the secretion of chimeric antibodies and fragments thereof from yeast in functional form.

The present invention relates to a chimeric IgG1 antibody molecule comprising two heavy chains and two light chains, each of the chains comprising a human constant region and a variable region, said antibody having specificity for the antigen bound by the 2H7 murine monoclonal antibody. The invention also relates to the increased ADCC and CDC cytolytic activities of the chimeric antibody, methods of production by recombinant DNA techniques, and uses.

A chimeric antibody with human constant region and murine variable region, having specificity to a human tumor antigen, methods of production, and uses. In particular, the present invention relates to a chimeric antibody specific for a human tumor antigen L6 and which mediates a potent antibody dependent cellular cytotoxicity against the tumor target cells.

Growing community of inventors

Oceanside, CA, United States of America

Alvin Y Liu