Table 1. List of human RBPs, their number of target transcripts and source of CLIP data.

RBP	# targets	Source of CLIP-Seq data (References)
AGO1	17,206	67,68
AGO2	64,425	67, 68, 69, 70, 71, 72, 73, 74, 75, 76
AGO3	5,849	67
AGO4	1,517	67
ALKBH5	1,685	77
ATXN2	6,715	78
C17ORF85	2,199	77
CAPRIN1	7,506	77
CPSF1	9,132	79
CPSF2	1,813	79
CPSF3	2,832	79
CPSF4	3,486	79
CPSF6	38,973	79
CPSF7	45,556	79
CSTF2	36,829	79,80
CSTF2T	32,893	79
DGCR8	14,587	81
EIF4A3	35,729	82
ELAVL1	55,432	69,83, 84, 85
EWSR1	6,702	86,87
EZH2	116	88
FBL	4,019	89
FIP1L1	34,643	79
FMR1	10,732	90
FUS	2,150	87,91,92
FXR1	2,940	90
FXR2	9,230	90
HNRNPA1	9,587	93
HNRNPA2B1	2,013	93
HNRNPC	18,806	94,95
HNRNPD	6,121	96
HNRNPF	3,461	93
HNRNPH	3,608	97
HNRNPM	3,051	93
HNRNPU	10,318	93,98
IGF2BP1	15,328	67
IGF2BP2	10,668	67
IGF2BP3	10,022	67
LIN28A	16,860	42,99
LIN28B	21,277	99,100
MOV10	7,523	101
NOP56	2,007	89
NOP58	7,879	89
NUDT21	40,541	79
PTBP1	25,385	102,103
PTBP2	16,956	102,103
PUM2	1,938	67
QKI	1,358	67
RTCB	6,376	77
SRRM4	10,026	103
TAF15	3,197	87,104
TARDBP	12,138	105
TIA1	11,977	106
TIAL1	23,854	106
TNRC6A	828	67
TNRC6B	643	67
TNRC6C	859	67
WDR33	1,626	107
YTHDF2	15,474	108
ZC3H7B	13,294	77

Table shows a list of all the 60 RBPs employed in the analysis, the number of transcripts targeted by each of them and references to the studies which provide the CLIP-Seq data²⁸. This list was generated by mapping the binding sites of each RBP with exonic coordinates and obtaining the corresponding transcripts of the mapped exons.