Number of residues per turn in alpha-helix
Value | 3.6 Amino acids per turn |
---|---|
Organism | Generic |
Reference | Pauling L, Corey RB, Branson HR. The Structure of Proteins: Two Hydrogen-Bonded Helical Configurations of the Polypeptide Chain. Proc Nat Acad Sci USA 1951a 37:205-211.PubMed ID14816373 |
Comments | In Pauling's model there are in fact 3.7 amino acids in each turn of the alpha helix, but today when many crystal structures are available the number is considered to be 3.6. |
Entered by | Ravit Netzer |
ID | 111185 |