Supplementary Figure 2: Design of display system
From: Yeast surface display platform for rapid discovery of conformationally selective nanobodies

(a) The display system was engineered using the high affinity SIRPα variant CV1 as a test protein, and its ligand CD47 ectodomain as the staining reagent. A biotin tag is schematized as a glowing red circle. (b) Length of the stalk region determines accessibility of a displayed protein as a function of molecular weight. (c) Analytical flow cytometry plots showing length dependence for two staining reagents: CD47 biotin and α-HA antibody. The 649 amino acid long stalk was used in all nanobody display experiments.