From 2007.igem.org

PCR ThpBF/ ThpBIR on ThpB (610 bp, gp=A)
PCR ThpBR/ ThpBIF on ThpB (712 bp, gp=B)

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PCR ThpBAF/ThpBAR on A+B (1285bp BglII/XhoI)
Digest pBca9145-Bca1144 (BglII/XhoI 2054+910, L)
Product I716332

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ThpBF Forward BglII site anneals to ThpB ctagaAGATCTgtgaccatcaccccgcccgc
ThpBIF Removing XhoI site in ThpB ggttcgagcggctcctTgaggaccagggctccggac
ThpBIR Removing XhoI site in ThpD gtccggagccctggtcctcAaggagccgctcgaacc
ThpBR Reverse XhoI site anneals to ThpB cgtcactcgagtcaggccgtttcgcggacgc