   3.4.24.B6 | amelogenin + H2O |
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Homo sapiens |
amelogenin fragments rH163 + rH146 |
in high phosphates conditions (20.9 mM KH2PO4) no cleavage site is observed in the central region of residues Q54P146, which also shows the slowest cleavage rate with the maximum accumulation of fragment rH163 at 4 h time-point. In the no calcium and phosphates conditions, the accumulation of rH163 reaches the maximum amount at 1 h and the cleavage in the central region Q54-P146 appears only after 5 h. Under high calcium conditions (33.4 mM CaCl2), the fastest cleavage rate is observed and also few exclusive and additional cleavage sites at T61, H67. Other conditions also show some exclusive cleavage sites such as P2 for no calcium and phosphates, P50 for low calcium and phosphates and G10 for high calcium and phosphates. The N-terminal positions Y11, N13, F14, S15, E17, K23, W24, P33, G42, and S53 and the C-terminal positions P155 and T158 are cleaved in all conditions used |
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