Table 1.

Binding properties of model RNAs and proteins determined by SPR.

RNA	Protein	k on (M–1 s–1)	k off (s–1)	K D (M)
Box C/D Kt	L7Ae	(1.41 ± 1.11) × 107	(2.77 ± 1.75) × 10–4	(2.13 ± 0.43) × 10–11
	dL7Ae	N.B.	–	–
dKt	L7Ae	N.B.	–	–
	dL7Ae	N.B.	–	–

k _on, k_off, K_D values are means and standard deviations of at least two independent experiments.

N.B.: no binding detected at the protein concentrations tested.