Lountos George T, Tropea Joseph E, Waugh David S
Macromolecular Crystallography Laboratory, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702, USA.
Acta Crystallogr D Biol Crystallogr. 2011 May;67(Pt 5):471-9. doi: 10.1107/S090744491100970X. Epub 2011 Apr 16.
There are over 100 genes in the human genome that encode protein tyrosine phosphatases (PTPs) and approximately 60 of these are classified as dual-specificity phosphatases (DUSPs). Although many dual-specificity phosphatases are still not well characterized, novel functions have been discovered for some of them that have led to new insights into a variety of biological processes and the molecular basis for certain diseases. Indeed, as the functions of DUSPs continue to be elucidated, a growing number of them are emerging as potential therapeutic targets for diseases such as cancer, diabetes and inflammatory disorders. Here, the overexpression, purification and structure determination of DUSP27 at 2.38 Å resolution are presented.
人类基因组中有100多个基因编码蛋白酪氨酸磷酸酶(PTP),其中约60个被归类为双特异性磷酸酶(DUSP)。尽管许多双特异性磷酸酶仍未得到充分表征,但已发现其中一些具有新功能,这些功能为各种生物过程以及某些疾病的分子基础带来了新的见解。事实上,随着DUSP的功能不断被阐明,越来越多的DUSP正在成为癌症、糖尿病和炎症性疾病等疾病的潜在治疗靶点。本文介绍了DUSP27的过表达、纯化以及在2.38Å分辨率下的结构测定。