Relationships among the O-antigen gene clusters of Salmonella enterica groups B, D1, D2, and D3

Research was conducted to examine the O-antigen gene cluster of Salmonella enterica group D3 strain M840. In this study, specific attributes of the D3 O antigen were identified through the examination of the said gene cluster using techniques such as Southern blotting. Results show the existence of novel beta-mannosyl transferase and wzy genes in the central region of the M840 strain.