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。

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表达系统：

目录号	产品名/同用名	种属	表达系统
TMPK-00447	CD45 Protein, Human, Recombinant (aa 26-577, hFc)	Human	HEK293 Cells
TMPK-00510	BAFF/TNFSF13B Trimer Protein, Cynomolgus, Recombinant (His & Avi, Flag), Biotinylated	Cynomolgus	HEK293 Cells
TMPK-00511	BAFF/TNFSF13B Trimer Protein, Cynomolgus, Recombinant (His & Avi)	Cynomolgus	HEK293 Cells
TMPK-00518	CD44 Protein, Cynomolgus, Recombinant (His)	Cynomolgus	HEK293 Cells
TMPK-00593	Syndecan-1 Protein, Human, Recombinant (His & Avi), Biotinylated	Human	HEK293 Cells
TMPK-00594	Syndecan-1 Protein, Human, Recombinant (aa 23-254, hFc)	Human	HEK293 Cells
TMPK-00595	Syndecan-1 Protein, Human, Recombinant (aa 23-254, His)	Human	HEK293 Cells
TMPK-00642	CD5 Protein, Rhesus macaque, Recombinant (His & Avi)	Rhesus	HEK293 Cells
TMPK-00643	CD5 Protein, Rhesus macaque, Recombinant (His & Avi), Biotinylated	Rhesus	HEK293 Cells
TMPK-00653	B7-2 Protein, Cynomolgus, Recombinant (His)	Cynomolgus	HEK293 Cells
TMPK-00674	CD24 Protein, Cynomolgus, Recombinant (hFc)	Cynomolgus	HEK293 Cells
TMPK-00675	CD24 Protein (Primary Amine Labeling), Cynomolgus, Recombinant (hFc), Biotinylated	Cynomolgus	HEK293 Cells
TMPK-00777	CD117 Protein, Mouse, Recombinant (His)	Mouse	HEK293 Cells
TMPK-00805	CD117 Protein, Human, Recombinant (His & Avi), Biotinylated	Human	HEK293 Cells
TMPK-00809	CD37 Protein, Human, Recombinant (His)	Human	HEK293 Cells
TMPK-00840	CD21 Protein, Mouse, Recombinant (His)	Mouse	HEK293 Cells
TMPK-00842	CD21 Protein, Human, Recombinant (His)	Human	HEK293 Cells
TMPK-00880	B7-2 Protein, Human, Recombinant (His & Avi)	Human	HEK293 Cells
TMPK-00881	B7-2 Protein, Human, Recombinant (His & Avi), Biotinylated	Human	HEK293 Cells
TMPK-00882	B7-2 Protein, Human, Recombinant (hFc)	Human	HEK293 Cells