Turns in Proteins: Difference between revisions

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

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-Notice that there are only five blue segments, and that is because, in two cases, one β-turn follows another one. Only five of the turns contain hydrogen bonds shown in magenta. Can you locate the cis configured Pro in the two turns without hbonds? Turns shown in <scene name='Turns_in_Proteins/Hemery_wf/2'>wireframe</scene> without the side chains so that the backbone atoms can be seen.  One can clearly see that the hydrogen bonds are positioned between the first and the fourth residues of the turn and involve backbone atoms.
+There are only five blue segments because, in two cases, one β-turn follows another one. Only five of the turns contain hydrogen bonds shown in magenta. (If you ran the above series of commands in ver. 12, hbonds in only these five turns are displayed.) Can you locate the cis configured Pro in the two turns without hbonds? Turns shown in <scene name='Turns_in_Proteins/Hemery_wf/2'>wireframe</scene> (If you are using ver. 12, run ''calculate hbonds structure'' in the console after clicking the green link.) without the side chains so that the backbone atoms can be clearly seen.  One can see that the hydrogen bonds are positioned between the first and the fourth residues of the turn and involve backbone atoms.
 The <scene name='Turns_in_Proteins/Rama_2mhr/1'>Ramachandran plot</scene> ([[Ramachandran Plot]]) colors the spheres for the helices but not for the turns.