Mutagenesis of protein A was performed using 2 pairs of primers: ADelL+KpnI and ADelP (deletion of aminoacids involved in interaction with protein Z) and AMutL+KpnI and AMutP (changing of few aminoacids involved in interaction with protein Z).
Mutagenesis were performed on 3 vectors: pACYClac+ompA-A-omega, pACYClac+ompa-A-alpha and pACYClac+ ompa-alpha-A.
Each mutagenesis were performed using each primer at final concentration 0,1 uM, dNTPs at final concentration 0,25 uM and Walk (Pwo) polymerase (shipped by A&A Biotechnology), with 100 ng of DNA template.
PCR program (15 cycles):
94C 5 min
94C 30 s
55C 30 s
72C 10 min
72C 8 min
4C pause
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