<i>Bacillus anthracis</i>, the causative agent of anthrax disease, elaborates a secondary cell wall polysaccharide (SCWP) that is essential for bacterial growth and cell division.<i>B. anthracis</i> SCWP is comprised of trisaccharide repeats with the structure, [→4)-β-ManNAc-(1→4)-β-GlcNAc(<i>O</i>3-α-Gal)-(1→6)-α-GlcNAc(<i>O</i>3-α-Gal, <i>O</i>4-β-Gal)-(1→]<sub>6-12</sub> The genes whose products promote the galactosylation of <i>B. anthracis</i> SCWP are not yet known.