A secondary structure of proteins that is a right-handed helix or coil, where each amino (N-H) group of the peptide backbone contributes a hydrogen bond to the carbonyl(C=O) group of the amino acid four residues N-terminal to it (n-4). It is the most common type of secondary structure.

Descriptor ID	D000072756
MeSH Number(s)	G02.111.570.820.709.600.020
Concept/Terms	Protein Conformation, alpha-Helical Protein Conformation, alpha-Helical Protein Conformation, alpha Helical alpha-Helices alpha Helices alpha-Helical Conformation, Protein Conformation, Protein alpha-Helical Conformations, Protein alpha-Helical alpha Helical Conformation, Protein alpha-Helical Conformations, Protein alpha-Helical Protein Conformation Conformation, alpha-Helical Protein Conformations, alpha-Helical Protein Protein Conformations, alpha-Helical alpha Helical Protein Conformation alpha-Helical Protein Conformations alpha-Helix alpha Helix alpha-Helical Structures alpha Helical Structures alpha-Helical Structure

Below are MeSH descriptors whose meaning is more general than "Protein Conformation, alpha-Helical".

Below are MeSH descriptors whose meaning is related to "Protein Conformation, alpha-Helical".

Below are MeSH descriptors whose meaning is more specific than "Protein Conformation, alpha-Helical".