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Protein-peptide interactions

R L Stanfield¹, I A Wilson

¹Department of Molecular Biology MB13, Scripps Research Institute, La Jolla, CA 92037, USA.

Current Opinion in Structural Biology

|February 1, 1995

Summary

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Proteins recognize short peptide sequences through various binding modes, including extended conformations and specific structural motifs. These interactions are crucial for biological functions and are observed across diverse protein families.

Area of Science:

Protein-peptide interactions
Structural biology
Molecular recognition

Background:

Proteins interact with short peptide sequences via sequence-dependent or independent mechanisms.
Bound peptides often adopt extended conformations but can also form beta-turns or alpha-helices.

Purpose of the Study:

To explore the diverse recognition motifs employed by proteins when binding short peptide sequences.
To illustrate these motifs using examples from various protein systems.

Main Methods:

Analysis of protein-peptide complex structures.
Identification and classification of peptide binding modes (e.g., buried, groove-bound, surface interactions).

Main Results:

Peptides bind proteins in extended conformations, beta-turns, or alpha-helices.

Related Experiment Videos

Binding sites include cavities, grooves, pockets, or protein surfaces forming beta-strand interactions.

Diverse examples include antibodies, calmodulin, OppA, PapD, MHC molecules, and SH domains.

Conclusions:

Proteins utilize a range of structural strategies to bind and recognize short peptides.
Understanding these motifs is key to deciphering protein function and designing novel interactions.