Additional files Additional file 1 – supplementary table of PCR primers employed in this study Primer Name 1911_Lup 1911_Ldwn 1911_Rup_Hom 1911_Rdwn 1923_Lup 1923_Ldwn 1923_Rup_Hom 1923_Rdwn 1924_Lup 1924_Ldwn 1924_Rup_Hom 1924_Rdwn 1925_Lup 1925_Ldwn 1925_Rup_Hom 1925_Rdwn 1926_Lup 1926_Ldwn 1926_Rup_Hom 1926_Rdwn AcsA_Lup AcsA_Ldwn AcsA_Rup_Hom AcsA_Rdwn hmwp1_Lup hmwp1_Ldwn hmwp1_Rup_Hom hmwp1_Rdwn 1925compFw 1925compRv Sequence GGGGCTCGAGGCCTTGCACACGCCGGATC AGACGCACTGTCCAGCGTATCG CGTCGATACGCTGGACAGTGCGTCTAGCGTGCCGGTGTTCGTG CCCCTCTAGACTTGCGGTCAAGCTTGCC GGGGGGATTCGATGTACGTGCGTAACTACGGC GTTCATGGGTCGATCCTTGC ATTCAGCAAGGATCGACCCATGAACGCATGACCGGGACCACCG GGGGGGATCCTTCGGTTTCAGCACGGCCG GGGGCTCGAGATGACCGGGACCACCGCT AGCCAGACCGGACAAATCAATG CAGCATTGATTTGTCCGGTCTGGCTCTGAAGACCGAGCTCCGTGC CCCCTCTAGAGTCCAGCGCATGGTCACTTTC GGGGGGAGCTCACAGTTGCTTGACTCCGTTA GCACTTCCTGATCGACATAA GAGCGTTATGTCGATCAGGAAGTGCAAACACTGCCCGATTACAT GGGGGAAGCTTTTTTTCAATATCGGACAAGC GGGGCTCGAGATGGACAAGTCTGCAGCAGAGC TTCGATGTCGGCTGGCGC CTCGGTTGCGCCAGCCGACATCGAAGTGGGGCTTATCGAAACCGC CCCCTCTAGATCACACAAGCCGCTCGGC GGGGCTCGAGATGAACTTCACTTCACTCGCCG CTCCAGAAACAGCGCTATGCC AAAGGGCATAGCGCTGTTTCTGGAGTGGCTTGAGCGTAACGGCA GGGGTCTAGATCAGGTTGCACGGCGCAA CCCCCTCGAGATGTACACATCGACCAGAAAAGC CTGATACAGATGACAGCC TGGAGTCGGCTGTCATCTGTATCAGCTGGCTGAGCAACCCCAG CCCCTCTAGATCATGAACCACCTCCGCT CCCCCATATGCAACAGTTGCTTGACTCCG CCCCAAGCTTTCAGATACCCGCCATTTCATTC Lup-Forward primer for amplification of 5’ gene fragment for in-frame gene knockout. Ldwn-Reverse primer for amplification of 5’ gene fragment for in-frame gene knockout. Rup-Forward primer for amplification of 3’ fragment for in-frame gene knockout; contains 25 bp homology region to corresponding 5’ fragment for SOE PCR (bold). Rdwn-Reverse primer for amplification of 3’ gene fragment. Restriction sequences are underlined and homology regions for SOE PCR are highlighted in bold. -1-