Susceptibility and structure of metallo-proteins and model systems

The interest in the study of the diamagnetic properties of the whole molecule and/or the magnetic moment of metal ions bound in relation to the structure and function of proteins is briefly outlined. The advantages in using high-resolution superconducting magnetometers are described together with the main features of the experimental technique and its foreseen advancement. A few examples, as representative of classes of problems, are discussed in more detail with reference to recent experimental studies.