生物
细胞生物学
转录因子
信号转导
调节器
功能(生物学)
细胞内
受体
细胞
免疫系统
抗原
小RNA
细胞命运测定
遗传学
基因
作者
Tomohiro Kurosaki,Hisaaki Shinohara,Yoshihiro Baba
出处
期刊:Annual Review of Immunology
[Annual Reviews]
日期:2009-08-25
卷期号:28 (1): 21-55
被引量:323
标识
DOI:10.1146/annurev.immunol.021908.132541
摘要
Antigen receptors on the surface of B lymphocytes trigger adaptive immune responses after encountering their cognate antigens but also control a series of antigen-independent checkpoints during B cell development. These physiological processes are regulated by the expression and function of cell surface receptors, intracellular signaling molecules, and transcription factors. The function of these proteins can be altered by a dynamic array of post-translational modifications, using two interconnected mechanisms. These modifications can directly induce an altered conformational state in the protein target of the modification itself. In addition, they can create new binding sites for other protein partners, thereby contributing to where and when such multiple protein assemblies are activated within cells. As a new type of post-transcriptional regulator, microRNAs have emerged to influence the development and function of B cells by affecting the expression of target mRNAs.
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