Spectroscopic studies on the oxygen-binding site of hemocyanins.

Hemocyanins are multisubunit proteins which occur freely dissolved in the hemolymph of many molluscs (such as snails and squids) and arthropods (such as crabs, lohsters, spiders and scorpions). The ligand binding site of these non-heme respiratory proteins has long been of interest and is considered to contain two copper ions wich reversily bind 1 O2 molecule. ... Zie: Summary