Phenomena and Processes

Secondary Protein Structure

The level of protein structure in which regular hydrogen-bond interactions within contiguous stretches of polypeptide chain give rise to ALPHA-HELICES; BETA-STRANDS (which align to form BETA-SHEETS), or other types of coils. This is the first folding level of protein conformation.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The level of protein structure in which regular hydrogen-bond interactions within contiguous stretches of polypeptide chain give rise to ALPHA-HELICES; BETA-STRANDS (which align to form BETA-SHEETS), or other types of coils. This is the first folding level of protein conformation.

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MeSH Record

Synonyms

5 entry terms
  • Protein Structure, Secondary
  • Protein Structures, Secondary
  • Secondary Protein Structures
  • Structure, Secondary Protein
  • Structures, Secondary Protein

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Aspects Covered

4 allowable subheadings

Indexed with the subheadings drug effects, genetics, physiology, radiation effects.

MeSH Record

Indexing Annotation

IM general only; coordinate NIM with specific protein

MeSH Record

History Note

93

MeSH Record

Previous Indexing

  • Protein Conformation (1972-1992)
  • Proteins (1966-1971)

MeSH Hierarchy

Tree Number

  1. G02.111.570.820w.709.600w

AMA Style

References

  1. National Library of Medicine. Secondary Protein Structure. Medical Subject Headings (MeSH). 2026. Unique ID D017433. http://id.nlm.nih.gov/mesh/2026/D017433
  2. Secondary Protein Structure. In: Wikipedia. https://en.wikipedia.org/wiki/Protein_secondary_structure
  3. Secondary Protein Structure. In: Wikidata. https://www.wikidata.org/wiki/Q904984