Question: How do recombinant non-IgG proteins support the development of novel biotherapeutics? Answer: High-purity non-IgG proteins, including constant regions and specialized Fc fragments, serve as essential building blocks for engineering chimeric or bispecific constructs. These recombinant non-IgG proteins and scaffolds are rigorously validated for their binding kinetics and structural integrity, providing researchers with the reliable tools needed to study Fc-receptor interactions and to optimize the serum half-life or mucosal stability of next-generation biologics.