Aptamer sequences and K_d values (in µM).^a

a. See Table 2 for counting statistics. Four sequences from each motif are shown: underlined bases in motifs I and II differ from the top candidate; bold fonts and capitals are used to highlight motif similarities. b. Order of abundance in the deep sequencing results. c. Counts for indicated sequence. d. Kd values (in µM) measured by SPR for Tb = Thrombin, Glc = glucose, AMM = α-methyl mannoside (accuracy estimated at ±30%). Kd values for blank cells were not determined.