Potential structure-switching aptamer candidates and their corresponding enrichment values from round 9 to round 11. The EcoRI restriction site is underlined.

Name K-cluster-#	Sequence 5′-3′	Enrichment R9 → R10	Enrichment R10 → R11
K16-1		19	2
K16-3		8	2
K4-1		17	1
K1-2		9	2
K1-3		9	2
K8-1		12	0.9
K1-1		10	11
K16-2		11	0.7
K4-2		13	0.3
K2-1		8	0.3