3  A67, I68, H69, V70, S71, G72, T73, N74, G75, T76, K77, R78, E96, K97, S98, N99, I100, R102, N122, A123, T124, N125, C136, N137, D138, P139, F140, L141, G142, Y143, H144, K145, N146, N147, K148, S149, W150, M151, E152, S153, E154, F155, L239, L240, A241, L242, H243, R244, S245, Y246, L247, T248, P249, G250, D251, S252, S253, S254, G255, W256, T257, A258, G259, A260, A261  0.869