puzzle picture
1912b: Designable Linker: Coronavirus Spike Binder
Status: Closed


151alyssaiihoshi 45 1456  33,9881
152heyubob 45 353 Gargleblasters33,8881
153_Jordyn 45 1456  33,7931
154kabounajm 45 1456  33,3151
155IshanS02 45 1456  33,1121
156Bearpaw 45 1456 Team Canada32,8901
157Hani18 45 1456  32,6051
158Laks 45 1456  32,4341
159VioletMaverick 45 1456  32,4151
160edamozonio 45 1456  32,3481
161HuubR 30 58 Gargleblasters32,0101
162ChristineN2020 45 1456  31,8691
163Thule 45 1456  31,8341
164mayabartels 45 1456  31,2811
165jawz101 45 474  31,1391
166CH3F1-Magiera 45 1456 CH3F130,7901
167Vater_Ashley 45 1456 FRS 004-18 & 004-28 UC Davis, 20200329,6841
168Equior 45 1456  28,4061
169git4b9 45 1456  27,3831
170Navarro_Ale 45 1456  27,1331
171ltrue2022 45 1456  25,6271
172LtKowalski 45 1456  23,4741
173numawaka 45 1456  22,8881
174vybi 45 145  11,3611
175Daniel Ivashin 45 1456  7,6111

Need this puzzle? Log in to download.  


bkoep's picture
User offline. Last seen 2 days 15 hours ago. Offline
Joined: 11/15/2012
Groups: Foldit Staff

Residue Count (max +550)
Penalizes extra residues inserted beyond the starting 205, at a cost of 55 points per residue. Players may use up to 215 residues in total.

Core Existence (max +2400)
Ensures that at least 28 percent of residues are buried in the core of the monomer unit.

Buried Unsats (max +500)
Penalizes polar atoms that cannot make hydrogen bonds, -60 points per atom.

Interaction Energy (max +500)
Monitors that all large PHE, TYR, and TRP residues are scoring well.

SS Design (max +500)
Penalizes all CYS residues. Penalizes GLY, ALA residues in sheets. Penalizes GLY, ALA, SER, THR in helices.

HuubR's picture
User offline. Last seen 9 hours 6 min ago. Offline
Joined: 04/13/2020
Groups: Gargleblasters
Can someone please explain this?

This is an exciting new type of puzzle, and I was very motivated to give it my best shot, but then I ran into something I do not understand.

The puzzle description above says that we have "two of the best-known designed binders", and I can understand that these are fixed in space with strong constraints (the thin red lines, when you move a part out of position). And the description of the first image in Coronavirus Designable Linker Puzzles says "The binders have been [...] augmented with helices to bring their termini closer together". As I see it, those are the parts of the helices that are all Valine (residues 76-92 and 131-142). These are supposed to be designable. Why, then, are these also constrained in space? If I want to redesign part of these helices, I can mutate, but I cannot bend the backbone, not even a little bit, without a huge penalty in points. Let alone replacing part of these helices with another structure.

In my mind, this will not help to get diverse and creative solutions!

It could well be that I'm just missing something here, so if anyone can explain this to me, that would be greatly appreciated.

neilpg628's picture
User offline. Last seen 34 weeks 2 days ago. Offline
Joined: 08/01/2019
Groups: Foldit Staff

Yes, for that puzzle the helices were mutable but not deletable or designable. That is now changed for the newer Designable Linker Puzzle being released today.

APPAAP's picture
User offline. Last seen 16 weeks 12 hours ago. Offline
Joined: 04/25/2020
Groups: None
To Top

I cannot best advise to the above questions.

Furthermore is there anyone who knows how to resolve a problem with an information pin placed at segment 132 (at beginning of puzzle this is Glutamate)and segmented one this makes also segment 131 to score poor (no good state) . The information pin says that we can use the idealize tool but if you try to use it a lot of bad thing's happen and all the structure become a mesh with constrained red lines!!

I experience also that in some puzzles and probable this one a)design freedom is relative, well notice that we do not have the SARS CoV-2 surounding structure b)processing power is important to some puzzles to achieve higher energy scores because it clearly relates to effective combinations except if you have a very good idea about the solution c) the efficiency of recipes (lua algorithm) is important. In conclusion is not only human creativity (only playing) but all above mentioned which contribute to the final result as well knowing the very details of using this software (playing skills).

User login
Download links:
  Windows    OSX    Linux  
(10.12 or later)

Are you new to Foldit? Click here.

Are you a student? Click here.

Are you an educator? Click here.
Social Media

Only search fold.it
Other Games: Mozak
Recommend Foldit
Top New Users

Developed by: UW Center for Game Science, UW Institute for Protein Design, Northeastern University, Vanderbilt University Meiler Lab, UC Davis
Supported by: DARPA, NSF, NIH, HHMI, Amazon, Microsoft, Adobe, Boehringer Ingelheim, RosettaCommons