Table S1. Oligonucleotides used in this study Primer paira,b,c Sequence (5’-3’) Application attB2-UP-citZ-F GGGGACCACTTTGTACAAGAAAGCTGGGT TAGCGAATATGCCGTGTTCA and Phos/AGTCTCCGCTGCGATAACC Amplification of sequence upstream of citZ for recombination with pKOR1 Amplification of sequence downstream of citZ for recombination with pKOR1 Amplification of sequence upstream of sbnG for recombination with pKOR1 Amplification of sequence downstream of sbnG for recombination with pKOR1 Complementation of citZ in pALC2073 and UP-citZ-R DOWN-citZ-F and attB1-DOWN-citZ-R CCAATCTTTGCTGTAAGTCGTTC and GGGGACAAGTTTGTACAAAAAAGCAGGCT CACCATTCAAGTTCATAGTTGCTAC attB1-UP-sbnG-F GGGGACAAGTTTGTACAAAAAAGCAGGCT GAACACTTCAACGAAACGAG and Phos/CTATGTTTCAGAGATAGTTGTTGCAT C CCATTTAAGTGCATCTCTAGCGAC and GGGGACCACTTTGTACAAGAAAGCTGGGT GCACTTCTGTCACATAGTAACC and UP-sbnG-R DOWN-sbnG-F and attB2-DOWN-sbnG-R citZ-F-SacI and citZ-R-SacI sbnG-F-KpnI and sbnG-R-SacI sfaA-749-F and sfa-941-R sfaD-1262-F and sfaD-1450-R sbnG-242-F and sbnG-422-R rpoB-76-F and rpoB-232-R GACTGAGCTCATGGCAGAATTACAAAGAG and GACTGAGCTCTGATTATTTTCTTTCTTCAAG CG TTGAGAGGTACCAAATCCATTAGGTGTAGG AGGT and TTGAGAGAGCTCTGGATGAGATTGTGCTTT TAAT TGACGATGTGTGCCATTGGTG and CGTGCCCATTGACTAAATAACCC AAAATGATTCCACAAGAAGTCACACC and GGATTACGAGACCAAGCAATGC TCATTAAAGTGTTGGATATGGGTGC and TTAGCCATCTCCATTGCATCAAG AGAGAAAGACGGCACTGAAAACAC and ATAACGACCCACGCTTGCTAAG Complementation of sbnG in pALC2073 (pJC10) RT-PCR of sfaA RT-PCR of sfaD RT-PCR of sbnG For RT-PCR of the housekeeping gene rpoB a. Sequences in bold denote the attB1 or attB2 sequences for site-specific recombination with pKOR1. b. Phos/ denotes a 5’ phosphate on the primer. c. Restriction sites for cloning are underlined.