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
TMPJ-00066	BCMA/TNFRSF17 Protein, Human, Recombinant (His & Flag)	Human	Human Cells
TMPJ-00099	CD28 Protein, Mouse, Recombinant (hFc & His)	Mouse	Human Cells
TMPJ-00102	CD28 Protein, Human/Cynomolgus, Recombinant (hFc & Avi), Biotinylated	Human,Cynomolyus	Human Cells
TMPJ-00112	CD79B Protein, Human, Recombinant (His & Avi), Biotinylated	Human	Human Cells
TMPJ-00118	CD79B Protein, Rhesus macaque, Recombinant (hFc)	Rhesus Macaque	Human Cells
TMPJ-00159	EMMPRIN/CD147 Protein, Human, Recombinant (Avi & His), Biotinylated	Human	Human Cells
TMPJ-00160	EMMPRIN/CD147 Protein, Human, Recombinant (His)	Human	Human Cells
TMPJ-00177	BAFF/TNFSF13B Protein, Human, Recombinant (Avi & hFc), Biotinylated	Human	Human Cells
TMPJ-00178	BAFF/TNFSF13B Protein, Human, Recombinant (His)	Human	Human Cells
TMPJ-00184	CD20 Protein, Human, Recombinant (Flag)	Human	Human Cells
TMPJ-00185	CD20 Protein, Human, Recombinant (His & Flag)	Human	Human Cells
TMPJ-00215	Fas/CD95 Protein, Mouse, Recombinant (hFc)	Mouse	Human Cells
TMPJ-00228	SLAMF5 Protein, Human, Recombinant (His & Avi), Biotinylated	Human	Human Cells
TMPJ-00229	SLAMF5 Protein, Human, Recombinant (His)	Human	Human Cells
TMPJ-00284	IL-7R alpha/CD127 Protein, Mouse, Recombinant (hFc)	Mouse	Human Cells
TMPJ-00285	IL-7R alpha/CD127 Protein, Human, Recombinant (hFc & His)	Human	Human Cells
TMPJ-00329	CD19 Protein, Rhesus macaque, Recombinant (hFc)	Rhesus macaque	Human Cells
TMPJ-00353	ILDR2 Protein, Human, Recombinant (His)	Human	Human Cells
TMPJ-00392	Siglec-2/CD22 Protein, Human, Recombinant (His & Avi), Biotinylated	Human	Human Cells
TMPJ-00393	Siglec-2/CD22 Protein, Human, Recombinant (hFc)	Human	Human Cells