TABLE S1. Primers used in this study Primer name NEW-VC2433-SacI#1 NEW -VC2433#2 NEW -VC2433#3 NEW -VC2433XbaI#4 Sequence (given in 5’ to 3’ direction) CGCGAGCTCAAATGACCTATCAACTGCAAGTGC CTTGGCGACTTACTCGGGTGTGTGGTCTTGCGAAAT ATCC ACACCCGAGTAAGTCGCCAAGCACAGTAATGTGAA AGCC CGCTCTAGATAACCGCCTAATGAACTTCCGACC R-XmaI-clpX VC1879-up-EcoRI VC1879-down-XmaI XmaI-comEA for gfp GCCGAATTCCCGGGCCGCCATGTCCCTATAATGCG AC CGGGACGTCAACGCTGCCCGAGATGCGCCGCG GCCGATATCAGGCCTTCACACAGGAAACAGCTATG ACC GCCGGATCCGGGGATCCTCTAGAGTCAAAAGG GCCGGATCCATCATGAACAATAAAACTGTCTGCTT AC GCCGGATCCTGCCAGTGTTACAACCAATTAACC CTGGCGGGTGTGATCAGTGTGTTG PGATAGACCCTCATTTTGGTTGTTG GCGCCTAGGTCTAGAGCACAGCGAAACAGCTCAAT CCCG CTAAATCATCAATTCAATTAAGGTAAAACC GCGAGGTGATCGAGTTCGTGCTGTACACAG CCGTAGAATTCGTCCGGATGCTGTCATTTGGGTC CCAAGAATTCGGCTTTCTTATCGAGTATTCCTGC CCAACCCGGGTTCTCAATCCTAGAGATGTTGAATG CCAAGAATTCTTTAAGACGCAACCAAGGTCACAAC C CCAACCCGGGAGAGCCATTATCCCTCTATAGTTTGA TCG CCAAGAATTCGCGAACAAGTGCGTCAGCAAGCC CCAACCCGGGTACTCTCTCCGGATAGTCACTCTCAG G CCAAGAATTCAATCCGTAAACCGGACTCCTCTCG CCAACCCGGGTCACTCAAGGTGTAAGCCTCGCGAT AAC CCAAGAATTCATACAGGCCAGCCAATCGAAGTGAT TG CCAACCCGGGTCGCTAACCTCTTAGCCTTTACTCAC CCAAGAATTCAGCCATAATCATTTGGCTGGGCAG CCAACCCGGGGAAAATTCATTAAACGGTTTATGCC GTTGCCCGGGGATAGACCCTCATTTTGGTTGTTG StuI-pilA for dsRed GTTGAGGCCTCTAAATCATCAATTCAATTAAGG araC-rev_XmaI GCGCCCGGGATTCTGCAAACCCTATGCTACTCCG AACCCGCGGCCGCTCCCGGCGGATTTGTCCTACTC AGG AATGTGCTGGGCAACGACTG GAGCCAAAGTTACCTTGGCC CTCTGTCTCTGGATATCGCG F_GFP-EcoRI/SmaI R_GFP-AatII F_dsRed-EcoRV/StuI R_dsRed-BamHI F_KanR R_KanR F-[VC1917]-200-up P-[VC1917] reverse F_pilA-AvrII-XbaI p(VC2423+99+STOP) F-P[VC0047] R-[VC0047]-EcoRI F-EcoRI-[hapA] R-XmaI-[hapA] F-EcoRI-gyrA R-XmaI-gyrA F-EcoRI-recA R-XmaI-recA F-EcoRI-ftsH R-XmaI-ftsH F-EcoRI-clpX pBADterm_bck_NotI gyrA-157-fwd gyrA_332_bwd qRT_recA_fwd Comments PCR of flanking regions of gene VC2433 to create knock-out plasmid pGP704-28-SacBΔcpdA PCR of promoterless gfp gene PCR of promoterless dsRed gene PCR of aph gene PCR of comEA promoter region PCR of pilA promoter region PCR of VC0047-50 promoter region PCR of hapA promoter region PCR of gyrA promoter region PCR of recA promoter region PCR of ftsH promoter region PCR of clpX promoter region PCR of comEC promoter region PCR of [PcomEA]-[PpilA] (“promoterswapping”) PCR fragment araCPBAD-tfoX-amplified from pBAD-tfoX-stop qRT-PCR for gyrA transcription qRT-PCR for recA qRT_recA_bwd qRT_ftsH_fwd qRT_ftsH_bwd qRT_clpX_fwd qRT_clpX_bwd NEW_pilA_283_fwd NEW_pilA_453_bwd comEA_50_fwd comEA_224_bwd comEC_1029_fwd comEC_1186_bwd pilM_218_fwd pilM_415_bwd VC0047-573-fwd VC0047-742-bwd dprA_115_fwd dprA_309_bwd dns_276_fwd dns_443_bwd GCATAAACCGGATCCAGTGC TGGTCAAGGCCAGATTCAGG TTGCTCTTCAGGAGGCGTAC GTTCGCAAACTGATCGCAGG CGGCTAGCACTTTTTTGGCG ATTGCCCCAACAGCATCAGG TGTTGCACCTGCAGTACAGC CGACATTACCGTTACTGGCC CCGTTGGCTTCTCGATAATCG GGTCGCGATTGTTCTCTACC CCAAATTGTACAGAACTGCCG CGATAGCAATCCCGGATAGC ACACTTGGAAGGTCGTCGTG CGAGGTAGCACAGTATCAAC GCTCCTCAAGATCGACTTCTG ACGCCTAAGCAATGGTTGGC AATAAACAGGACGGGAGGCG GCAATGCTGGCAACAAGGTG CCATAGGTGACGCCATCAAC transcription qRT-PCR for ftsH transcription qRT-PCR for clpX transcription qRT-PCR for pilA transcription qRT-PCR for comEA transcription qRT-PCR for comEC transcription qRT-PCR for pilM transcription qRT-PCR for VC0047 transcription qRT-PCR for dprA transcription qRT-PCR for dns transcription