CD45RA (4KB5, MB1, KiB3, MT2)

This group of antibodies recognise specific isoforms of CD45.

Antibodies are effective on paraffin-embedded tissue2.

Immunohistochemical expression

Diagnostic utility


See: comparison of sensitivities and specificities of T and B cell markers


1M Steward et al. Production and characterization of a new monoclonal antibody effective in recognizing the CD3 T-cell associated antigen in formalin-fixed embedded tissue. Histopathology 1997;30:16-22.

2Leong A S-Y, Cooper K and Leong FJ W-M. Manual of diagnostic antibodies for immunohistology. 2nd edition, 2003

©SMUHT/PW Bishop