Figure 1From: Functionally specified protein signatures distinctive for each of the different blue copper proteinsa) Rusticyanin bound to the copper atom as indicated by the blue colored ball. b) Copper binding active site of rusticyanin showing the four active site residues: Histidine at 85th position, Histidine at 143rd position, Cysteine at 138th position and Methionine at 148th positionBack to article page