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Glutamate binding interactions (from the last 20 ns of five repeat simulations) observed in GluK2 and GluK5 within the GluK2/K5 heterodimer, where the dashed line represents a hydrogen bond and the five circular rings indicate the frequency of these interaction within each of the five simulation repeats (no color indicates no interaction in that repeat). S673 and T501 (bold) contribute additional interactions from the GluK5 subunit. To see this figure in color, go online.
