In direct ELISAs, less than 1% cross-reactivity with recombinant human (rh) GDNF, recombinant rat GDNF, rhNeurturin, and rhTGF-beta 1 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 met