User:Karsten Theis/turns
From Proteopedia
(Difference between revisions)
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<jmol> | <jmol> | ||
<jmolButton> | <jmolButton> | ||
| - | <script>rphi2 = 60 - angle({67.C},{68.N},{68.CA},{68.C});rotate branch {68.CA} {68.N} @rphi2;rpsi2 = 30 - angle({68.N},{68.CA},{68.C},{69.N});rotate branch {68.C} {68.CA}@rpsi2;rphi3 = 90 - angle({68.C},{69.N},{69.CA},{69.C});rotate branch {69.N} {69.CA} @rphi3;rpsi3 = 0 - angle({69.N},{69.CA},{69.C},{70.N});rotate branch {69.CA} {69.C} @rpsi3 | + | <script>rphi2 = 60 - angle({67.C},{68.N},{68.CA},{68.C});rotate branch {68.CA} {68.N} @rphi2;rpsi2 = 30 - angle({68.N},{68.CA},{68.C},{69.N});rotate branch {68.C} {68.CA}@rpsi2;rphi3 = 90 - angle({68.C},{69.N},{69.CA},{69.C});rotate branch {69.N} {69.CA} @rphi3;rpsi3 = 0 - angle({69.N},{69.CA},{69.C},{70.N});rotate branch {69.CA} {69.C} @rpsi3</script> |
<text>Type I prime</text> | <text>Type I prime</text> | ||
</jmolButton> | </jmolButton> | ||
Revision as of 20:50, 7 February 2025
A beta turn is a secondary structure element consisting of four consecutive amino acids (or three peptide planes). The geometry of turns correspond to a change in the direction of the polypeptide backbone, allowing them to connect alpha helices and beta strands at the surface of a globular protein. Of the six main chain hydrogen bonding partners of a turn, a maximum of two are engaged in hydrogen bonding, and turns are rarely found in the hydrophobic core.
Exploring turns
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