Figure 3
Non-immune library derived PCT Nbs. (A) Amino acid sequence alignment of three PCT-specific Nb families as classified by CDR3. Amino acids positions of the framework region (FR) and of the three antigen-binding loops (CDR1, CDR2 and CDR3) are numbered according to the IMGT Scientific chart for the V-Domain and are indicated at bottom. (B) SDS-PAGE analysis of purified Nbs.