Features Detection Methods Spliceosome_type_1 Minor spliceosome splice sites GC_exon_1 GC percentage of first exon GC_upstream_intron_1 GC percentages of first exon of circRNA upstream intron GC_downstream_intron_1 GC percentage of first exon of circRNA downstream intron ss5_strength_1 MaxEnt ss3_strength_1 MaxEnt ESE_1 Regular expression ESS_1 Regular expression ESS_ESE_ratio_1 Regular expression AGEZ_1 svm-bpfinder SS_dist_1 svm-bpfinder bp_scr_1 svm-bpfinder y_cont_1 svm-bpfinder ppt_off_1 svm-bpfinder ppt_len_1 svm-bpfinder ppt_scr_1 svm-bpfinder svm_scr_1 svm-bpfinder BP_num_1 svm-bpfinder BP_strength_1 svm-bpfinder Total_Bp_1 svm-bpfinder Exon_length_1 Ensembl annotation Number_Alt3ss_1 Regular expression Number_Alt5ss_1 Regular expression Non_Consensus_3ss_1 Regular expression Non_Consensus_5ss_1 Regular expression Intron_upstream_length_1 Ensembl annotation Intron_downstream_length_1 Ensembl annotation Spliceosome_type_2 Minor spliceosome splice sites GC_exon_2 GC percentage of first exon GC_upstream_intron_2 GC percentages of final exon of circRNA upstream intron GC_downstream_intron_2 GC percentage of final exon of circRNA downstream intron ss5_strength_2 MaxEnt ss3_strength_2 MaxEnt ESE_2 Regular expression ESS_2 Regular expression ESS_ESE_ratio_2 Regular expression AGEZ_2 svm-bpfinder SS_dist_2 svm-bpfinder bp_scr_2 svm-bpfinder y_cont_2 svm-bpfinder ppt_off_2 svm-bpfinder ppt_len_2 svm-bpfinder ppt_scr_2 svm-bpfinder svm_scr_2 svm-bpfinder BP_num_2 svm-bpfinder BP_strength_2 svm-bpfinder Total_Bp_2 svm-bpfinder Exon_length_2 Ensembl annotation Number_Alt3ss_2 Regular expression Number_Alt5ss_2 Regular expression Non_Consensus_3ss_2 Regular expression Non_Consensus_5ss_2 Regular expression Intron_upstream_length_2 Ensembl annotation Intron_downstream_length_2 Ensembl annotation upstream_histone ENCODE ChIP-seq exon1_histone ENCODE ChIP-seq exon2_histone ENCODE ChIP-seq downstream_histone ENCODE ChIP-seq upstream_region_histone ENCODE ChIP-seq downstream_region_histone ENCODE ChIP-seq upstream_LC ENCODE eCLIP of proteins with low complexity regions exon1_LC ENCODE eCLIP of proteins with low complexity regions exon2_LC ENCODE eCLIP of proteins with low complexity regions downstream_LC ENCODE eCLIP of proteins with low complexity regions upstream_region_LC ENCODE eCLIP of proteins with low complexity regions downstream_region_LC ENCODE eCLIP of proteins with low complexity regions upstream_SR ENCODE eCLIP of proteins with SR domains exon1_SR ENCODE eCLIP of proteins with SR domains exon2_SR ENCODE eCLIP of proteins with SR domains downstream_SR ENCODE eCLIP of proteins with SR domains upstream_region_SR ENCODE eCLIP of proteins with SR domains downstream_region_SR ENCODE eCLIP of proteins with SR domains upstream_hnRNP ENCODE eCLIP of hnRNPs exon1_hnRNP ENCODE eCLIP of hnRNPs exon2_hnRNP ENCODE eCLIP of hnRNPs downstream_hnRNP ENCODE eCLIP of hnRNPs upstream_region_hnRNP ENCODE eCLIP of hnRNPs downstream_region_hnRNP ENCODE eCLIP of hnRNPs upstream_CLiP All eCLiP data exon1_CLiP All eCLiP data exon2_CLiP All eCLiP data downstream_CLiP All eCLiP data upstream_region_CLiP All eCLiP data downstream_region_CLiP All eCLiP data HistoneActive_downstream ENCODE ChIP-seq of active chromatin marks (based on ChromHMM annotation) HistoneActive_exon1 ENCODE ChIP-seq of active chromatin marks (based on ChromHMM annotation) HistoneActive_exon2 ENCODE ChIP-seq of active chromatin marks (based on ChromHMM annotation) HistoneActive_downstream ENCODE ChIP-seq of active chromatin marks (based on ChromHMM annotation) HistoneActive_upstream_region ENCODE ChIP-seq of active chromatin marks (based on ChromHMM annotation) HistoneActive_downstream_region ENCODE ChIP-seq of active chromatin marks (based on ChromHMM annotation) HistoneRepress_upstream ENCODE ChIP-seq of repressive chromatin marks (based on ChromHMM annotation) HistoneRepress_exon1 ENCODE ChIP-seq of repressive chromatin marks (based on ChromHMM annotation) HistoneRepress_exon2 ENCODE ChIP-seq of repressive chromatin marks (based on ChromHMM annotation) HistoneRepress_downstream ENCODE ChIP-seq of repressive chromatin marks (based on ChromHMM annotation) HistoneRepress_upstream_region ENCODE ChIP-seq of repressive chromatin marks (based on ChromHMM annotation) HistoneRepress_downstream_region ENCODE ChIP-seq of repressive chromatin marks (based on ChromHMM annotation) Nucleosomes_upstream Nucleosome occupancy from Enroth et al. Nucleosomes_exon1 Nucleosome occupancy from Enroth et al. Nucleosomes_exon2 Nucleosome occupancy from Enroth et al. Nucleosomes_downstream Nucleosome occupancy from Enroth et al. Nucleosomes_upstream_region Nucleosome occupancy from Enroth et al. Nucleosomes_upstream_region Nucleosome occupancy from Enroth et al. Up_AluJ USCS repeatmasker annotation in upstream intron adjacent to circRNA Up_AluS USCS repeatmasker annotation in upstream intron adjacent to circRNA Up_AluY USCS repeatmasker annotation in upstream intron adjacent to circRNA Up_L1 USCS repeatmasker annotation in upstream intron adjacent to circRNA Up_L2 USCS repeatmasker annotation in upstream intron adjacent to circRNA Up_L3 USCS repeatmasker annotation in upstream intron adjacent to circRNA Up_MIR USCS repeatmasker annotation in upstream intron adjacent to circRNA Up_MER USCS repeatmasker annotation in upstream intron adjacent to circRNA Up_FLAM USCS repeatmasker annotation in upstream intron adjacent to circRNA Up_ATRich USCS repeatmasker annotation in upstream intron adjacent to circRNA Up_SINE USCS repeatmasker annotation in upstream intron adjacent to circRNA Up_other USCS repeatmasker annotation in upstream intron adjacent to circRNA Down_AluJ USCS repeatmasker annotation in downstream intron adjacent to circRNA Down_AluS USCS repeatmasker annotation in downstream intron adjacent to circRNA Down_AluY USCS repeatmasker annotation in downstream intron adjacent to circRNA Down_L1 USCS repeatmasker annotation in downstream intron adjacent to circRNA Down_L2 USCS repeatmasker annotation in downstream intron adjacent to circRNA Down_L3 USCS repeatmasker annotation in downstream intron adjacent to circRNA Down_MIR USCS repeatmasker annotation in downstream intron adjacent to circRNA Down_MER USCS repeatmasker annotation in downstream intron adjacent to circRNA Down_FLAM USCS repeatmasker annotation in downstream intron adjacent to circRNA Down_ATrich USCS repeatmasker annotation in downstream intron adjacent to circRNA Down_SINE USCS repeatmasker annotation in downstream intron adjacent to circRNA Down_other USCS repeatmasker annotation in downstream intron adjacent to circRNA AluJ_flank USCS repeatmasker annotation required elements to be on different strands in upsteam and downstream intron AluS_flank USCS repeatmasker annotation required elements to be on different strands in upsteam and downstream intron AluY_flank USCS repeatmasker annotation required elements to be on different strands in upsteam and downstream intron L1_flank USCS repeatmasker annotation required elements to be on different strands in upsteam and downstream intron L2_flank USCS repeatmasker annotation required elements to be on different strands in upsteam and downstream intron L3_flank USCS repeatmasker annotation required elements to be on different strands in upsteam and downstream intron MIR_flank USCS repeatmasker annotation required elements to be on different strands in upsteam and downstream intron MER_flank USCS repeatmasker annotation required elements to be on different strands in upsteam and downstream intron FLAM_flank USCS repeatmasker annotation required elements to be on different strands in upsteam and downstream intron ATRich_flank USCS repeatmasker annotation required elements to be on different strands in upsteam and downstream intron SINE_flank USCS repeatmasker annotation required elements to be on different strands in upsteam and downstream intron other_flank USCS repeatmasker annotation required elements to be on different strands in upsteam and downstream intron Alu_count_Upstream Alu elements per a residue Alu_count_Downstream Alu elements per a residue Alu_count_upstream_region Alu elements per a residue Alu_count_downstream_region Alu elements per a residue