Retro-Inverso Peptide
Retro-Inverso Peptide — A peptide with reversed sequence direction and D-amino acids, maintaining side chain topology while dramatically improving protease resistance.
What Is a Retro-Inverso Peptide?
A retro-inverso peptide has a reversed sequence direction (retro) built with D-amino acids (inverso), placing side chains in approximately the same spatial orientation as the parent L-peptide. This strategy preserves the topochemistry of side-chain presentation while making the peptide completely resistant to proteases.
Design
- Parent: H-L1-L2-L3-L4-OH → Retro-inverso: H-D4-D3-D2-D1-OH
- Side-chain topology: Maintained. H-bond donors/acceptors reversed
- Limitation: Backbone H-bonding pattern differs from parent, so binding to targets relying on backbone contacts may be lost
- Success: Works best for epitope mimicry and vaccine applications where side-chain display dominates
Frequently Asked Questions
What is Retro-Inverso Peptide?
A peptide with reversed sequence direction and D-amino acids, maintaining side chain topology while dramatically improving protease resistance.
Why is Retro-Inverso Peptide important in peptide research?
Retro-Inverso Peptide is a fundamental concept in structure as it relates to peptide science. It directly influences experimental design, compound characterization, and the reliability of research outcomes across biochemistry and molecular biology disciplines.
Authority Sources
- Retro-Inverso Peptide on Wikipedia
- Search Retro-Inverso Peptide on PubChem (NIH)
- Research articles on ScienceDirect