The S50-895 monoclonal antibody specifically recognizes the transcription factor, Aiolos, which is encoded by IKZF3, IKAROS family zinc finger 3. Aiolos belongs to the Ikaros family of zinc-finger proteins that includes Ikaros and Helios. Aiolos can form homodimers or heterodimers with other Ikaros family members. Multiple Aiolos isoforms have been described. Aiolos is expressed in committed lymphoid progenitors and mature types of T and B lymphocytes, but is not expressed by hematopoietic stem cells. Aiolos plays an important role in the control of B lymphocyte differentiation and proliferation and is specifically required for the generation of long-lived, high affinity plasma cells in the bone marrow. Aiolos is involved in regulating BCL2 expression and controlling apoptosis in T-cells in an IL2-dependent manner. Aberrant expression of IKZF3 has been implicated with leukemogenesis and certain autoimmune diseases.
This antibody is conjugated to BD Horizon™ PE-CF594, which has been developed exclusively by BD Biosciences as a better alternative to PE-Texas Red®. PE-CF594 excites and emits at similar wavelengths to PE-Texas Red® yet exhibits improved brightness and spectral characteristics. Due to PE having maximal absorption peaks at 496 nm and 564 nm, PE-CF594 can be excited by the blue (488-nm), green (532-nm) and yellow-green (561-nm) lasers and can be detected with the same filter set as PE-Texas Red® (eg, 610/20-nm filter).