B Cell CD Proteins

B cells, also known as B lymphocytes, are a type of white blood cell of the lymphocyte subtype. They function in the humoral immunity component of the adaptive immune system. In mammals, B cells mature in the bone marrow. B cell activation occurs in the secondary lymphoid organs (SLOs), such as the spleen and lymph nodes. After B cells mature in the bone marrow, they migrate through the blood to SLOs, which receive a constant supply of antigen through circulating lymph. At the SLO, B cell activation begins when the B cell binds to an antigen via its B-cell receptors (BCR).

Immature B cells express CD19, CD20, CD34, CD38, and CD45R. Most mature B cells express IgM, CD19, CD20, and CD22. Activated B cells express CD30. Plasma B cells could not express CD19, but could express CD78.

Cat No.	product name / Synonyms	Species	Expression System
TMPK-00447	CD45 Protein, Human, Recombinant (aa 26-577, hFc) CD45 Protein, Human, Recombinant (aa 26-577, hFc)	Human	HEK293 Cells
TMPK-00447	PTPRC (also known as CD45),T cells require the protein tyrosine phosphatase CD45 to detect and respond to antigen because it activates the Src family kinase Lck,...
TMPK-00510	BAFF/TNFSF13B Trimer Protein, Cynomolgus, Recombinant (His & Avi, Flag), Biotinylated BAFF/TNFSF13B Trimer Protein, Cynomolgus, Recombinant (His & Avi, Flag), Biotinylated	Cynomolgus	HEK293 Cells
TMPK-00510	B-cell activating factor (BAFF) also known as tumor necrosis factor ligand superfamily member 13B is a protein that in humans is encoded by the TNFSF13B gene.BAF...
TMPK-00511	BAFF/TNFSF13B Trimer Protein, Cynomolgus, Recombinant (His & Avi) BAFF/TNFSF13B Trimer Protein, Cynomolgus, Recombinant (His & Avi)	Cynomolgus	HEK293 Cells
TMPK-00511	B-cell activating factor (BAFF) also known as tumor necrosis factor ligand superfamily member 13B is a protein that in humans is encoded by the TNFSF13B gene.BAF...
TMPK-00518	CD44 Protein, Cynomolgus, Recombinant (His) CD44 Protein, Cynomolgus, Recombinant (His)	Cynomolgus	HEK293 Cells
TMPK-00518	CD44 is a hyaluronan binding cell surface signal transducing receptor that influences motility, cell survival and proliferation as well as the formation of tumor...
TMPK-00593	Syndecan-1 Protein, Human, Recombinant (His & Avi), Biotinylated Syndecan-1 Protein, Human, Recombinant (His & Avi), Biotinylated	Human	HEK293 Cells
TMPK-00593	Liver diseases such as liver cirrhosis, primary and metastatic liver cancers are still a major medical challenge. Syndecan-1 is one of the most important proteog...
TMPK-00594	Syndecan-1 Protein, Human, Recombinant (aa 23-254, hFc) Syndecan-1 Protein, Human, Recombinant (aa 23-254, hFc)	Human	HEK293 Cells
TMPK-00594	Liver diseases such as liver cirrhosis, primary and metastatic liver cancers are still a major medical challenge. Syndecan-1 is one of the most important proteog...
TMPK-00595	Syndecan-1 Protein, Human, Recombinant (aa 23-254, His) Syndecan-1 Protein, Human, Recombinant (aa 23-254, His)	Human	HEK293 Cells
TMPK-00595	Liver diseases such as liver cirrhosis, primary and metastatic liver cancers are still a major medical challenge. Syndecan-1 is one of the most important proteog...
TMPK-00642	CD5 Protein, Rhesus macaque, Recombinant (His & Avi) CD5 Protein, Rhesus macaque, Recombinant (His & Avi)	Rhesus	HEK293 Cells
TMPK-00642	CD5: a type I transmembrane protein found on T cells, thymocytes, and some B cells that is a ligand for CD72 and is involved in cellular activation or adhesion; ...
TMPK-00643	CD5 Protein, Rhesus macaque, Recombinant (His & Avi), Biotinylated CD5 Protein, Rhesus macaque, Recombinant (His & Avi), Biotinylated	Rhesus	HEK293 Cells
TMPK-00643	CD5: a type I transmembrane protein found on T cells, thymocytes, and some B cells that is a ligand for CD72 and is involved in cellular activation or adhesion; ...
TMPK-00653	B7-2 Protein, Cynomolgus, Recombinant (His) B7-2 Protein, Cynomolgus, Recombinant (His)	Cynomolgus	HEK293 Cells
TMPK-00653	B7-1 and B7-2 are homologous costimulatory ligands expressed on the surface of antigen presenting cells (APCs). Binding of these molecules to the T cell costimul...
TMPK-00674	CD24 Protein, Cynomolgus, Recombinant (hFc) CD24 Protein, Cynomolgus, Recombinant (hFc)	Cynomolgus	HEK293 Cells
TMPK-00674	CD24 is a sialoglycoprotein expressed at the surface of most B lymphocytes and differentiating neuroblasts. It is also expressed on neutrophils and neutrophil pr...
TMPK-00675	CD24 Protein (Primary Amine Labeling), Cynomolgus, Recombinant (hFc), Biotinylated CD24 Protein (Primary Amine Labeling), Cynomolgus, Recombinant (hFc), Biotinylated	Cynomolgus	HEK293 Cells
TMPK-00675	CD24 is a sialoglycoprotein expressed at the surface of most B lymphocytes and differentiating neuroblasts. It is also expressed on neutrophils and neutrophil pr...
TMPK-00777	CD117 Protein, Mouse, Recombinant (His) CD117 Protein, Mouse, Recombinant (His)	Mouse	HEK293 Cells
TMPK-00777	The c-kit proto-oncogen (CD 117) has been shown to be present in several cell types including normal and neoplastic hemopoietic cells. Among normal BM cells, CD1...
TMPK-00805	CD117 Protein, Human, Recombinant (His & Avi), Biotinylated CD117 Protein, Human, Recombinant (His & Avi), Biotinylated	Human	HEK293 Cells
TMPK-00805	The c-kit proto-oncogen (CD 117) has been shown to be present in several cell types including normal and neoplastic hemopoietic cells. Among normal BM cells, CD1...
TMPK-00809	CD37 Protein, Human, Recombinant (His) CD37 Protein, Human, Recombinant (His)	Human	HEK293 Cells
TMPK-00809	CD37 is a tetraspanin expressed prominently on the surface of B cells. It is an attractive molecular target exploited in the immunotherapy of B cell-derived lymp...
TMPK-00840	CD21 Protein, Mouse, Recombinant (His) CD21 Protein, Mouse, Recombinant (His)	Mouse	HEK293 Cells
TMPK-00840	A natural soluble form of CD21 that is cleaved from lymphocyte membrane CD21 circulates in normal human serum. Soluble CD21 retains the capacity to bind iC3b and...
TMPK-00842	CD21 Protein, Human, Recombinant (His) CD21 Protein, Human, Recombinant (His)	Human	HEK293 Cells
TMPK-00842	CD21 mRNA expression, an EBV-entry receptor, was transiently detected in NK cells after exosome treatment, and levels decreased after further culture. CD21 prote...
TMPK-00880	B7-2 Protein, Human, Recombinant (His & Avi) B7-2 Protein, Human, Recombinant (His & Avi)	Human	HEK293 Cells
TMPK-00880	B7-1 and B7-2 are homologous costimulatory ligands expressed on the surface of antigen presenting cells (APCs). Binding of these molecules to the T cell costimul...
TMPK-00881	B7-2 Protein, Human, Recombinant (His & Avi), Biotinylated B7-2 Protein, Human, Recombinant (His & Avi), Biotinylated	Human	HEK293 Cells
TMPK-00881	B7-1 and B7-2 are homologous costimulatory ligands expressed on the surface of antigen presenting cells (APCs). Binding of these molecules to the T cell costimul...
TMPK-00882	B7-2 Protein, Human, Recombinant (hFc) B7-2 Protein, Human, Recombinant (hFc)	Human	HEK293 Cells
TMPK-00882	B7-1 and B7-2 are homologous costimulatory ligands expressed on the surface of antigen presenting cells (APCs). Binding of these molecules to the T cell costimul...