id,target_name_canonical,target_type,target_uniprot,aptamer_name,aptamer_seq,kd_reported,kd_log10_molar,measurement_class,binding_constant_type,tier,source_origin,verification_level,sequence_status,seq_source,pi_provenance_flag,assay_method,assay_temperature_k,assay_ph,assay_buffer,assay_cations,aptamer_chemistry,aptamer_modifications,source_pmid,doi,verbatim_quote,source_db
21,Sr2+,protein,P31213,Thrombin Binding Aptamer,GGTTGGTGTGGTTGG,240.0 nM,-6.62,intrinsic,Kd,Gold,v4,extraction_verified,verified_in_text_or_SI,original,,mass_spectrometry,298.15,,25% MeOH and 0.50% NH4OH (v/v),,DNA,,18318508,10.1021/ac701903w,the Kd determined from the best-fit curve is 240 ( 50 nM for the interaction of TBA and Sr 2 +,step2c_literal_v3
20,K+,protein,Q9UJ71,Thrombin Binding Aptamer,GGTTGGTGTGGTTGG,5000.0 nM,-5.301,intrinsic,Kd,Gold,v4,extraction_verified,verified_in_text_or_SI,original,,mass_spectrometry,298.15,,25% MeOH and 0.50% NH4OH (v/v),,DNA,,18318508,10.1021/ac701903w,the Kd determined from the bestfit curve is 5000 ( 1000 nM for the interaction of TBA and K +,step2c_literal_v3