. 2013 Jan 16;8(1):e50964. doi: 10.1371/journal.pone.0050964

Table 1. Unmodified and PS-modified SL₂-B aptamer sequences along with their equilibrium dissociation constant (K_d) values determined using surface plasmon resonance (SPR) spectroscopy.

Sequences of original and PS-modified aptamer (5′–3′)	K_d
Unmodified SL₂-B aptamer CAATTGGGCCCGTCCGTATGGTGGGT	0.50±0.32 nM
PS-modified SL₂-B aptamer CAATTGGGCCCGTCCGTATGGTGGGT	0.56±0.44 nM

“*” indicates the position of phosphorothioate (PS) modification.

Table 1. Unmodified and PS-modified SL2-B aptamer sequences along with their equilibrium dissociation constant (Kd) values determined using surface plasmon resonance (SPR) spectroscopy.