促细胞生成素B结构域结合PAI-1/uPAR、整合素,促进细胞的黏附、肿瘤的转移;通过链间二硫键形成蛋白二聚体稳定蛋白构象;CKRG序列能够抑制胰蛋白酶活性。SMB结构域含有8个保守的半胱氨酸残基,但是各种空间三维结构研究手段得出的8个半胱氨酸所形成的二硫键模式是有争议的。本文对SMB结构域结构与功能之间的关系作初步总结。
Abstract Somatomedin B domains in different proteins have different functions, including its binding to PAI-1 and to integrins, mediation of homodimerization of protein and inhibition of trypsin activation, et al. SMB domain contains 8 consensus cystines animo acids X4CX3CX9CXCX3CX5CCX5CX5 and the RGD sequence in C-terminal. The disulfide bonds of the recombinant SMB and the SMB isolated by digesting native protein by NMR or protein crystal are not identical.
王黎芳,韩忠朝. 促细胞生成素B结构域(SMB domain)功能与结构研究进展[J]. 中国生物工程杂志, 2006, 26(0): 177-181.
. The research advances of function and structure of Somatomedin B domain. China Biotechnology, 2006, 26(0): 177-181.
https://manu60.magtech.com.cn/biotech/CN/ 或 https://manu60.magtech.com.cn/biotech/CN/Y2006/V26/I0/177
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