poj:PtoMrB4_05540 K11903 type VI secretion system secreted protein Hcp | (GenBank) hcpB; secreted protein Hcp poj:PtoMrB4_25080 K11892 type VI secretion system protein ImpK | (GenBank) hypothetical protein poj:PtoMrB4_05510 K11900 type VI secretion system protein ImpC | (GenBank) type VI secretion protein poj:PtoMrB4_05520 K11901 type VI secretion system protein ImpB | (GenBank) type VI secretion system-associated protein