Fig. 8
From: An extracellular cation coordination site influences ion conduction of OsHKT2;2
Coordination site constitution of in silico mutants K504A, K504E, K504Q and K504R. a-e Electrostatic potential mapped to the protein surface. The cation coordination site is highlighted and the position of P71, D75, D501 and K504 are indicated. f-j Representative illustration of the coordination site constitution of all four K504 mutants and the wild-type with ions approaching from the extracellular site or being inside the coordination site