The main portion of lib-SA consists of the concatenation of EXON_A, INTRON, EXON_B, and EXON_C in that order defined below:

EXON_A:
CAAGATCCGCCACAACATCGAG

INTRON (N’s denote intron portion of intron-exon target library):
GTAAGTTATCACCTTCGTGGCTACAGAGTTTCCTTATTTGTCTCTGTTGCCGGCTTATATGGACAAGCATATCACAGCCATTTATCGGAGCGCCTCCGTACACGCTATTATCGGACGCCTCGCGAGATCAATACGATTACCAGCTGCCCTCGTCGACNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNAG

EXON_B (N’s denote exon portion of intron-exon target library):
NNNNNNNNNNNNNNNNNNNNNNNNTGATTACACATATAGACACGCGAGCAGCCATCTTTTATAGAATGGGTAGAACCCGTCCTAAGGACTCAGATTGAGCATCGTTTGCTTCTCGAGTACTACCTGGTACAGATGTCTCTTCAAACAG

EXON_C (N’s denote barcode):
GACGGCAGCGTGCAGCTCGCCNNNNNNNNNNNNNNNGACCACTACCAGCAGAACACCCC