In Western blots, less than 5% cross-reactivity with recombinant rat UNC5H2, recombinant human (rh) UNC5H3 and rhUNC5H4 is observed. Reconstitute at 0.2 mg/mL in sterile PBS. Endoxin level is <0.10 EU per 1 μg of the antibody by the LAL method. The UNC5H