N2 genomic lysates were PCR amplified with primers B4F2 and B1R3 (see Table S1 for primer sequences). The 5.6 kb fragment was recombined into pDONR P4P1R. This construct has 1169 bp of 5' UTR sequence. Sequencing revealed an error at nucleotide #1921 (T->C nucleotide change; V->A amino acid change), which was corrected with the QuikChange Mutagenesis kit (Agilent Technologies, Santa Clara, CA). Theentry clone containing the
cbd-1 3' UTR was made as follows. N2 genomic lysates were PCR amplified with primers B2rF2 and B3R1. The 389 bp PCR fragment was recombined into pDONR P2RP3. The expression clone was constructed by performing a Gateway LR reaction with the two entryclones, pCR347, and pCR319.