Fig 1. Schematic illustrating the epitopes of anti-HTT antibodies used for MSD assays.

Monoclonal and polyclonal antibodies are shown at the top and the bottom, respectively. Antibodies 90000147 and 90002133 are mouse-selective; antibodies 90000146 and 4C9 (when used as a detection antibody) are human-selective, all other antibodies are not species-selective.