TABLE 2.

Percent of tree motifs in computed random pools (columns 2–6) and properties of GTP-binding aptamers reported in Carothers et al. (2004) corresponding to different tree motifs

Motif ID	25 nt	40 nt	60 nt	80 nt	100 nt	Kda	Lb (nt)
21	83	29	2	—	—	250–900	30–56
31	17	56	24	3	—	30–8000	41–60
41	—	13	38	15	2	17	68
52	—	—	7	22	14	9	69

^aDissociation constant.

^bAptamer length.