Make yellow cutpoint display connect the atoms that actually connect

Case number:845833-2004754
Topic:Game: Display
Opened by:Susume
Status:Open
Type:Suggestion
Opened on:Monday, January 29, 2018 - 21:39
Last modified:Wednesday, February 7, 2018 - 18:45

Yellow cutpoints are drawn in foldit connecting the alpha carbons of adjacent residues. When working in stick view (to fit individual residues into the ED cloud, for example), there is nothing drawn connecting the carbonyl carbon to the nitrogen of the next residue, even though that is the portion of backbone that is removed from the drawing when a cut is put in. It is very difficult to remember which atoms are supposed to connect, or to envision whether they are a decent distance apart, or whether the backbone angles will be reasonable when the cut is closed. It would be helpful if (in stick view at least) the yellow cutpoint could connect the carbonyl carbon to the nitrogen instead of the two alpha carbons, so we can see what the backbone will look like when the cut is healed.

http://fold.it/portal/files/chatimg/irc_341210_1517261414.png

(Mon, 01/29/2018 - 21:39  |  3 comments)


jeff101's picture
User offline. Last seen 1 day 11 hours ago. Offline
Joined: 04/20/2012
Groups: Go Science


I think Susume is saying that in stick view, the yellow cutpoint
should appear between the C of C=O and the N of N-H
in the Peptide Bond shown below:



At present, the yellow cutpoint seems to directly connect
alpha-carbon C_alpha_1 to alpha-carbon C_alpha_2 or
alpha-carbon C_alpha_2 to alpha-carbon C_alpha_3
in the image below:



The above images came from below:
http://oregonstate.edu/instruct/bb331/lecture01/peptidebond.gif
http://3.bp.blogspot.com/_DZH2cmCoois/R_UXz8ls3yI/AAAAAAAAE9I/94lEMyVW65s/s400/figure+4-06.jpg

LociOiling's picture
User offline. Last seen 2 hours 40 min ago. Offline
Joined: 12/27/2012
Groups: Beta Folders

Here's what it looks like in stick view:

http://foldit.wikia.com/wiki/Protein_backbone#Cutpoints

jeff101's picture
User offline. Last seen 1 day 11 hours ago. Offline
Joined: 04/20/2012
Groups: Go Science

Below is an image from
http://foldit.wikia.com/wiki/Protein_backbone#Cutpoints

It shows 2 yellow cut bands connecting 3 alpha-carbons.
Attached to the center alpha-carbon is an N-H group
(just to the left in blue and white) and a C=O group
(just to the right in green and red).

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