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Figure 6


Fig. 6. Models of the interfacial and cohesive paradigms of Ca/Mg involvement in the adhesion of Phragmatopoma californica cement. (A) Ca/Mg provides inter- and intramolecular bridges for Pc-3 proteins within the cement. (B) Ca/Mg provides interfacial bridges between cement proteins and anionic surface groups. The cross symbols indicate other types of interactions.