Purity:Purified by Protein A. Tested by electrophoresis.
Form:Supplied as a liquid in PBS, pH 7.2. No preservative added. No stabilizing proteins added. Labeled with Fluorescein isothiocyanate (FITC).
Specificity:Reacts with CD5 antigen (MW 67kD). LT1 completely cross block binding of MAbs Leu 1 and OKT1. Working dilution: 1:5,000. LT1/CD5 is present on the majority of human T-cells. This antigen is also found on the neoplastic cells in all cases of B cell chronic lymphocytic leukaemia, but is not present on normal B cells or on other cell populations.