FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
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General Information
Term beta_bulge ID (Ontology) SO:0001107 (Sequence Ontology)
Definition A motif of three residues within a beta-sheet in which the main chains of two consecutive residues are H-bonded to that of the third, and in which the dihedral angles are as follows: Residue(i): -140 degrees < phi(l) -20 degrees , -90 degrees < psi(l) < 40 degrees. Residue (i+1): -180 degrees < phi < -25 degrees or +120 degrees < phi < +180 degrees, +40 degrees < psi < +180 degrees or -180 degrees < psi < -120 degrees.
Also Known As "beta bulge"
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  polypeptide_structural_region
   |__polypeptide_secondary_structure
       |__beta_bulge
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http://en.wikipedia.org/wiki/Beta_bulge "wiki"