ORFs of the CS54 island of Salmonella serotype Typhimurium strain ATCC 14028 and deletion or insertion mutations constructed for phenotypic analysis. ORFs are indicated by arrows. The position of a dispersed repeat (cross-hatched bar) and remnant of an IS1 element (open bar) are indicated. The lengths (in base pairs) of the ORFs are indicated from the ATG codon (+1) to the stop codon. The position of the deletion or insertion in shdA, ratB, ratA, sivI, or sivH in strains AH9, AH12, AH8, AH10, and RAK19 are indicated.