Our group possesses the X- and Q-Band CW ESR capabilities as well as a pulsed Q-Band spectrometer equipped with a SpinJet AWG. In addition, we cooperate with AG Bittl, which gives us direct access to several additional ESR spectrometers (S-, X-, Q- and W-Band) having both dipolar and hyperfine capabilities. Our protein sample preparation laboratories are fully equipped with modern instruments for membrane protein biochemistry and biophysics.