Chemical methods for peptide and protein production

Area of Science:

• Peptide chemistry and medicinal chemistry.

Background:

• Solid-phase peptide synthesis, pioneered by Merrifield in 1963, initially faced purity challenges with increasing coupling steps.
• Development of protecting groups (Boc, Fmoc) and novel techniques improved peptide quality and quantity.
• Early methods like fragment condensation showed limitations in racemization and reaction efficiency.

Purpose of the Study:

• To review the evolution of synthetic peptide methods.
• To highlight advancements in peptide coupling and ligation techniques.
• To discuss the applications of synthetic peptides in medicinal chemistry.

Main Methods:

• Review of historical and modern peptide synthesis methodologies.
• Description of key innovations including protecting groups and ligation strategies.
• Examination of techniques such as native chemical ligation, click chemistry, and α-ketoacid-hydroxylamine ligations.

Main Results:

• Significant improvements in peptide synthesis purity and yield over decades.
• Introduction of chemoselective reactions like native chemical ligation revolutionized peptide coupling.
• Emergence of diverse ligation techniques enabling complex peptide synthesis.
• Establishment of companies producing high-quality Good Manufacturing Practice (GMP) peptides at multi-kilogram scales.

Conclusions:

• Peptide synthesis has undergone substantial advancements, overcoming initial limitations.
• Modern ligation techniques offer efficient and high-quality peptide production.
• Synthetic peptides are increasingly vital in medicinal chemistry applications.