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The H. ducreyi 35000HP ncaA locus and neighboring genes. RNA transcripts of prolyl-tRNA ligase (proS, HD1919), ATP-dependent DNA helicase (recG, HD1921), and RNA polymerase ω subunit (rpoZ, HD1923) were detected by reverse transcription-PCR and found to be produced in both 35000HP and 35000HPncaA (in which the ncaA gene is insertionally inactivated by cat as shown).
