si_0351 Yfa_cluster Uncharacterized transcriptional regulator YfaX, HTH-type si_0351 Yfa_cluster Uncharacterized protein YfaZ precursor si_0351 Yfa_cluster Uncharacterized protein YfaD si_0351 Yfa_cluster Uncharacterized protein YfaW si_0351 Yfa_cluster Uncharacterized protein YfaU si_0351 Yfa_cluster Inner membrane transport protein YfaV si_0351 Yfa_cluster Competence/damage-inducible protein CinA si_0351 Yfa_cluster Pyrimidine deoxynucleoside triphosphate (dYTP) pyrophosphohydrolase YfoO