Monoclonal antibodies that define a unique antigen of human B ce

Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Blood proteins or globulins – e.g. – proteoglycans – platelet...

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53038873, 53038885, 4351722, 435334, 4353431, 4353441, 436548, C07K 1628

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056440332

ABSTRACT:
Three monoclonal antibodies defining extracellular epitopes of a unique heterodimeric glycoprotein complex consisting of the human mb-1 protein and the human B29 protein which react with one or more leukemia lymphoma cell specimens selected from the group consisting of B prolymphocytic leukemia cells, B non-Hodgkin's lymphoma cells, B chronic lymphocytic leukemia cells, B hairy cell leukemia cells, and B acute lymphoblastic leukemia cells. The three monoclonal antibodies also react with human non-malignant B cells. The invention also provides a method for producing the new monoclonal antibodies and for diagnostic procedures using the monoclonal antibodies and for the treatment of leukemia-lymphoma patients and patients with immunological diseases. The invention also relates to the isolation and chemical identification of the human B29 and mb-1 proteins of B cell antigen receptor complex. The amino-terminal amino acid sequences of the mb-1 and B29 gene products were determined.

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