Mouse anti-CD7, clone MRQ-56 - 7 ml

CD7 antigen is a 40-kDa cell surface glycoprotein that is a member of the immunoglobulin gene superfamily. While its precise function is not known, it is suggested that CD7 plays a role in T-cell interactions as it is one of the earliest T-cell lineage associated antigens expressed during T-cell ontogeny. CD7 is expressed in thymocytes, mature peripheral T-cells, natural killer cells, and lymphoid and myeloid progenitors. CD7 is the most consistently expressed T cell antigen in lymphoblastic lymphomas and leukemias, and is therefore a useful marker in the identification of such neoplastic proliferations. In mature post-thymic T cell neoplasms, it is the most common pan-T antigen to be aberrantly absent and its absence in a T cell population is a useful pointer to a neoplastic conversion.