pbm:CL52_18625 K11903 type VI secretion system secreted protein Hcp | (GenBank) hypothetical protein pbm:CL52_00985 K11900 type VI secretion system protein ImpC | (GenBank) type VI secretion protein pbm:CL52_00990 K11901 type VI secretion system protein ImpB | (GenBank) type VI secretion protein