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(A) The elution traces of the FAM-labeled ssDNAs collected during the 11 cycles of AF4-SELEX. The symbols of, ♦ and ▾ label the peaks of the free ssDNAs, the dimers of ssDNAs, and the DNMT1-bound ssDNAs, respectively. (B) Target binding evaluation of identified Aptamer (Apt.) #1, #2, #3 and #4 (sequences listed in Supplementary Table S2) by AF4.
