It is with great pleasure that I present this special issue of Peptide Science focused on the state‐of‐the‐art in peptide research from laboratories in the UK. This issue is the fifth of an international series of special issues that highlights Emerging Peptide Science research from countries with an active community of scientists working in the field. The previous issues have covered recent scientific

The American Peptide Society (APS) has a long tradition of recognizing and supporting graduate and postdoctoral students who are conducting research in the field of peptide science. These emerging leaders, whom we affectionately refer to as Young Investigators (YIs), were represented in large numbers at the 26th American Peptide Symposium in Monterey Bay, California, USA in 2019. Understanding the

This issue of Peptide Science is a testimonial to brilliance packaged in a nontraditional way. We are honoring the contributions of Louis A. Carpino (“Lou” to many of us or “Louie” to a few), who passed away in January 2019 at the age of 91. Lou Carpino's contributions to peptide chemistry specifically, and organic chemistry more broadly, over the course of his career are truly stunning as summarized

Unfortunately, over the last 12 months, the peptide science community has lost several colleagues, notably, Judy Warner, American Peptide Society (APS) Symposium organizer, Elizabeth Schram, the American Peptide Symposium Young Investigator sponsor, and Professor Jean Rivier, the president of the APS (1993‐1995). Judy was a wonderful person, always gentle and cheerful, and dedicated to the organization

Cover caption: The aggregation behaviour of peptide fragments of proteins in aqueous solutions with ionic liquids (ILs) could help identify the relationship between IL–protein interactions and structural behaviour of intrinsically disordered proteins in this media. Takekiyo et al. report that the addition of 1‐butyl‐3‐methylimidazolium thiocyanate, but not ethylammonium nitrate, to amyloid β1–11 peptide