Category:SO:0001151 ! beta turn type six a
id: SO:0001151
name: beta_turn_type_six_a
def: "A motif of four consecutive peptide residues, of which the i+2 residue is proline, and that may contain one H-bond, which, if present, is between the main-chain CO of the first residue and the main-chain NH of the fourth and is characterized by the dihedral angles: Residue(i+1): phi ~ -60 degrees, psi ~ 120 degrees. Residue(i+2): phi ~ -90 degrees, psi ~ 0 degrees." [PMID:2371257, SO:cb]
subset: biosapiens
synonym: "beta turn type six a" EXACT []
synonym: "type VIa beta turn" EXACT []
synonym: "type VIa turn" EXACT []
is_a: SO:0001150 ! beta_turn_type_six
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This category has the following 2 subcategories, out of 2 total.
