[PyMOL] Distorted 3-10 helix

[Bonsor, D. (NIH/N. [C] <dan...@ni...>]

Dear All,

My latest structure has several 3-10 helices present, however, a few of them in cartoon form shows the starting residue of the helix to be distorted/twisted.

The structure is 2.2Ang and I can clearly see the position of the amide bond and the direction of carbonyl, but I cannot stop the twisting of the cartoon.

I have tried altering that residue ss to a loop which “works” (as in the problem goes away) but I really wish to show the full helix. I have also run DSSPtoPDB and force it not to recognize the 3-10 helices as helices but in cartoon form you can see they are helices.

Do anyone have suggestions or a way to force it to be a helix?
[A close up of a toy  Description automatically generated with low confidence]
Thanks,

Daniel


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Daniel A Bonsor PhD | Scientist I
RAS Structural Biology


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