High-Resolution NMR Studies of Human Tissue Factor.
High-Resolution NMR Studies of Human Tissue Factor.
复制标题
DOI:
10.1371/journal.pone.0163206
复制
发表时间:
2016
期刊:
影响因子:
3.7
通讯作者:
Rienstra CM
中科院分区:
文献类型:
--
作者:
Nuzzio KM;Watt ED;Boettcher JM;Gajsiewicz JM;Morrissey JH;Rienstra CM
In normal hemostasis, the blood clotting cascade is initiated when factor VIIa (fVIIa, other clotting factors are named similarly) binds to the integral membrane protein, human tissue factor (TF). The TF/fVIIa complex in turn activates fX and fIX, eventually concluding with clot formation. Several X-ray crystal structures of the soluble extracellular domain of TF (sTF) exist; however, these structures are missing electron density in functionally relevant regions of the protein. In this context, NMR can provide complementary structural information as well as dynamic insights into enzyme activity. The resolution and sensitivity for NMR studies are greatly enhanced by the ability to prepare multiple milligrams of protein with various isotopic labeling patterns. Here, we demonstrate high-yield production of several isotopically labeled forms of recombinant sTF, allowing for high-resolution NMR studies both in the solid and solution state. We also report solution NMR spectra at sub-mM concentrations of sTF, ensuring the presence of dispersed monomer, as well as the first solid-state NMR spectra of sTF. Our improved sample preparation and precipitation conditions have enabled the acquisition of multidimensional NMR data sets for TF chemical shift assignment and provide a benchmark for TF structure elucidation.
登录
查看更多内容
影响因子:
1.6
作者:
REZAIE, AR;FIORE, MM;MORRISSEY, JH
通讯作者:
MORRISSEY, JH
影响因子:
64.8
作者:
HARLOS, K;MARTIN, DMA;BOYS, CWG
通讯作者:
BOYS, CWG
DOI:
10.1016/j.bbrc.2011.08.135
发表时间:
2011-10-07
影响因子:
3.1
作者:
Carlsson, Karin;Persson, Egon;Svensson, Magdalena
通讯作者:
Svensson, Magdalena
影响因子:
4.1
作者:
STONE, MJ;RUF, W;WRIGHT, PE
通讯作者:
WRIGHT, PE
影响因子:
3.4
作者:
Shi, Lichi;Lake, Evelyn M. R.;Ladizhansky, Vladimir
通讯作者:
Ladizhansky, Vladimir