CD45 or Leukocyte Common Antigen (LCA/T200) family is comprised of at least four isoforms (CD45RA, CD45RB, CD45RC, and CD45RO) of membrane glycoproteins with MW of 180kDa-220kDa. It consists of a large, heavily glycosylated, amino-terminal extracellular domain of 400-550 amino acids, a single transmembrane region and a large carboxy-terminal cytoplasmic domain of 700 amino acids. CD45/LCA is expressed on hematopoietic cell lines but absent on non-hematopoietic cell lines, normal and malignant non-hematopoietic tissues. The intracellular portion of CD45 proteins has phosphatase activity and is involved in regulation of transmembrane signals, functioning as a leukocyte membrane receptor capable of transducing signals via its phosphotyrosine phosphatase domains.

Suitable for use in FLISA. Other applications not tested.

Optimal dilutions to be determined by the researcher.

Store product at 4°C in the dark. DO NOT FREEZE! Stable at 4°C for 12 months after receipt as an undiluted liquid. Dilute required amount only prior to immediate use. Further dilutions can be made in assay buffer. Caution: MaxLight™650 conjugates are sensitive to light. For maximum recovery of product, centrifuge the original vial prior to removing the cap.

Note: Applications are based on unconjugated antibody.

Normal human blood lymphocytes.

Supplied as a liquid in PBS, pH 7.2. No preservative added. Labeled with MaxLight™650.

Murine ascites purified by column chromatography.

Recognizes CD45 antigen (MW 200kD).