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Related Concept Videos

Antimicrobial Proteins01:23

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Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
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Related Experiment Video

Updated: Apr 12, 2026

Production and Visualization of Bacterial Spheroplasts and Protoplasts to Characterize Antimicrobial Peptide Localization
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A large-scale structural classification of antimicrobial peptides.

Hao-Ting Lee1, Chen-Che Lee1, Je-Ruei Yang1

  • 1Department of Computer Science and Engineering, National Taiwan Ocean University, Keelung 202, Taiwan.

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|May 23, 2015
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Summary

A new database, ADAM, links antimicrobial peptide (AMP) sequences and structures. This resource reveals limited diversity in AMP structural folds, covering only 3% of known protein folds.

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Area of Science:

  • Biochemistry
  • Bioinformatics
  • Structural Biology

Background:

  • Antimicrobial peptides (AMPs) show promise as therapeutics against diverse microbes.
  • Existing research on AMP sequence-structure relationships is limited, hindering comprehensive analysis.
  • Bioinformatics resources for AMPs are fragmented, lacking integrated sequence and structure data.

Purpose of the Study:

  • To introduce A Database of Anti-Microbial peptides (ADAM), a comprehensive resource for AMPs.
  • To systematically associate AMP sequences with their structures using structural folds.
  • To provide accessible visualization of AMP sequence-structure relationships.

Main Methods:

  • Curated a dataset of 7,007 unique AMP sequences and 759 AMP structures.
  • Employed bioinformatics analyses to identify and cluster shared structural folds among AMPs.
  • Developed a database interface for exploring associations between AMP sequences and structural features.

Main Results:

  • ADAM provides integrated access to extensive AMP sequence and structure data.
  • Identified 30 distinct AMP structural fold clusters containing multiple structures.
  • Approximately 1,000 AMPs were associated with at least one identified structural fold cluster.
  • Analysis revealed that AMP structural folds represent a small fraction (approx. 3%) of the total protein fold space.

Conclusions:

  • ADAM serves as a valuable resource for studying AMP sequence-structure relationships.
  • The limited diversity in AMP structural folds suggests potential for novel AMP design.
  • Further research can leverage ADAM to explore AMP function, evolution, and therapeutic potential.