B 细胞 CD 蛋白

B细胞，也称为B淋巴细胞，是淋巴细胞亚型的一种白细胞。它们在适应性免疫系统的体液免疫成分中起作用。在哺乳动物中，B细胞在骨髓中成熟。B 细胞活化发生在次级淋巴器官（SLO）中，例如脾脏和淋巴结。B细胞在骨髓中成熟后，它们通过血液迁移到SLO，SLO通过循环淋巴液获得持续的抗原供应。在 SLO 中，当 B 细胞通过其 BCR 与抗原结合时，B 细胞激活开始。

未成熟的 B 细胞可表达 CD19、CD20、CD34、CD38 和 CD45R。大多数成熟 B 细胞表达IgM、CD19、CD20 和 CD22。活化的 B 细胞会表达 CD30。血浆 B 细胞不能表达 CD19，但可表达 CD78。

Species：

Expression System：

Tag：

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
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
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
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
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
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
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
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 macaque	HEK293
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 macaque	HEK293
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
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
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
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
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
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
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
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
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
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
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
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...