Fig. 6: Possible molecular models of zinc ion capture by Pra1.
From: Structural insights into mechanisms of zinc scavenging by the Candida albicans zincophore Pra1
Model 1 posits that the histidine triads function as zinc ion storage units following capture of zinc ions by the C-terminal arms (left). In Model 2, zinc ions are sequestered directly by the histidine triads on the outer rim (right).
