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. Author manuscript; available in PMC: 2009 Aug 25.
Published in final edited form as: Biochemistry. 1998 May 19;37(20):7351–7362. doi: 10.1021/bi972864b

Table 1.

g-Valuesa,b and Line Widthsc (G) for [4Fe-4S]+ at 15 K and Semiquinone at 100 K

sample [4Fe-4S]+gz (line width) [4Fe-4S]+gy (line width) [4Fe-4S]+gx (line width) SQ-·g
wild type 2.089 (22) 1.934 (15) 1.875 (29) 2.0036
N338T 2.084 (22.5) 1.930 (17) 1.870 (30.5) 2.0037
N338A 2.084 (22.5) 1.930 (17.5) 1.870 (30.5) 2.0039
a

The uncertainty of the iron-sulfur cluster g-values was ∼±0.003.

b

The uncertainty of the semiquinone g-values was ∼±0.0005.

c

Peak-to-peak first derivative line widths were obtained by computer simulation. Uncertainty of the line widths was ±2 G.