Extracellular Secretion Of Recombinant Proteins: Proof-Of-Principle Data

In this presentation from PepTalk: The Protein Science and Production Week in San Diego, Diane Retallack reveals how strategic secretion leader screening transforms protein production outcomes. The discussion centers on extracellular secretion strategies that simplify downstream processing while maintaining protein quality.

Learn how different secretion leaders dramatically impact both yield and protein integrity across diverse molecular targets. Discover the proof-of-principle data demonstrating extracellular localization for proteins ranging from 15 to 60 kilodaltons, with intact mass confirmation and activity validation. Retallack examines why periplasmic transit proves essential for disulfide bond formation and proper folding, and how moving proteins to extracellular media reduces host cell impurities while enabling real-time expression monitoring. See the comparative data across modified host strains and understand which cellular modifications enable successful secretion for antibody derivatives, enzymes, and modified toxins.

Access the complete presentation below to better understand whether these extracellular secretion approaches could streamline your own protein production workflows.