pi_helix

Term ID

SO:0001118

Synonyms

• pi helix

Definition

The pi helix has 4.1 residues per turn and a translation of 1.15 (=0.115 nm) along the helical axis. The N-H group of an amino acid forms a hydrogen bond with the C=O group of the amino acid five residues earlier.

References

• http://en.wikipedia.org/wiki/Pi_helix

Ontology

Sequence Ontology