... move away from the heme and the B-helix moves closer to the heme in the WTmetHbthanintherWTmetHbH2O crystal structure, with the result that the ligated water is lost in the latter complex [16,17].Prior ... position E7 as the source of the H- bond to ligand on the basis of apartial sequence, which had indicated a Tyr on the distalE-helix. The similarity in the 1HNMRspectraofthethree globin complexes ... the tilt of the major magnetic axis, z, away from the heme normal (z axis),a is the angle between the projection of the tilt of the z axis on the xÂ,y plane (dened direction of tilt of z and...