Background: CD5 is a 55kDa T lymphocyte single chain transmembrane glycoprotein. It is present on all mature T lymphocytes, on most thymocytes and on many T cell leukemias and lymphomas. It reacts with a subpopulation of activated B cells. CD5/Lyt1 antigen is a monomeric type I transmembrane glycoprotein expressed on thymocytes, T lymphocytes, and a subset of B lymphocytes, but not on natural killer (NK) cells. It has been identified as the major ligand of the B cell antigen CD72. The frequency of CD5+ B cells exhibits strain dependent variation, and the phenotypic, anatomical, functional, developmental, and pathological characteristics of the CD5+ B cells suggest that they may represent a distinct lineage, known as B1 cells. Binding of CD5 on the T cell surface can augment alloantigen or mitogen induced lymphocyte proliferation and induces increased cytosolic free calcium, IL2 secretion, and IL2R expression. It has been proposed that CD5 negatively regulates signal transduction mediated by the T cell and B cell receptors.

Host species/Isotype: Rabbit/IgG

Species reactivity: Human, Mouse, Rat, Cow, Horse, Rabbit, Sheep,

Immunogen: KLH conjugated synthetic peptide derived from human CD5.

Storage instructions: Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.

Concentration:1mg/ml

Purity: affinity purified by Protein A

Clonality: Polyclonal

Molecular weight: 55KDa

Tested applications:

WB=1:500-2000

ELISA=1:500-1000

IHC-P=1:100-500

IHC-F=1:100-500

Flow-Cyt=1ug/test

ICC=1:100-500

IF=1:100-500