Distance measurements in spin-labeled lysozyme.
Distance measurements in spin-labeled lysozyme.
复制标题
自旋标记溶菌酶中的距离测量。
DOI:
10.1021/bi00313a038
复制
发表时间:
1984
期刊:
影响因子:
2.9
通讯作者:
Kuntz,ID
中科院分区:
文献类型:
--
作者:
Schmidt,PG;Kuntz,ID
Paul G. Schmidt* and Irwin D. Kuntz abstract: The single His-15 of hen egg lysozyme reacts with 2, 2, 6, 6-tetramethyl-4-(bromoacetamido) piperidinyl-l-oxy or 2, 2, 5, 5-tetramethyl-3-(bromoacetamido) pyrrolidinyl-l-oxy to give a spin-labeled enzyme [Wien, R. W., Morrisett, J. D., & McConnell, HM (1972) Biochemistry 11, 3707-3716].High-field ‘H NMR spectra (300 and 500 MHz) of these species in 2H20 contain protein peaks selectively broadened by dipolar coupling to the unpaired electron spin. While usually difficult to discern in the spectrum itself, broadened resonances are revealed in difference spectra obtained by