FANDOM


(Tidy up a bit, offer some better advice.)
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[[File:Level_4-3_Flippin'_Sheets.png|thumb|400px|Flippin' Sheets. Use the tweak tool to flip the section sheet from the top. No relation to Flippin, Arkansas.]]<br />In this puzzle, the second sheet from the top has two [[Hydrophobic|hydrophobics]] with blotchy yellow [[Exposeds|exposeds]] on them.
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[[File:Level_4-3_Flippin'_Sheets.png|thumb|400px|Flippin' Sheets. Use the tweak tool to flip the section [[Sheet|sheet]] from the top. No relation to Flippin, Arkansas.]]
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In this puzzle, the second sheet from the top has two [[Hydrophobic|hydrophobics]] with blotchy yellow [[Exposeds|exposeds]] on them.
   
In the previous puzzle, the [[Tweak|tweak]] tool was used to rotate a helix. In this puzzle, the tweak tool is used to "flip" a sheet. This turns the sheet over and moves it over a bit. In this case, flipping the sheet will hide the two hyrdophobics in the [[Core|core]] of the protein.
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In the previous puzzle, the [[Tweak|tweak]] tool was used to rotate a helix. In this puzzle, the tweak tool is used to "flip" a [[Sheet|sheet]]. This turns the sheet over and moves it over a bit. In this case, flipping the sheet will hide the two hydrophobics in the [[Core|core]] of the protein.
   
Right-click anywhere on the second sheet and select "Tweak" from the wheel menu. The tweak tool shows purple arrows next to the sheet. Click on the right side of one of the arrow to flip the sheet.
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This puzzle can be a little touchy, so you may need to reset and try again a time or two. As a first step, [[Shake Sidechains|shake]] the puzzle to clear up some of the starting [[Clashes|clashes]].
   
Flipping the sheet is the easy part. This puzzle has the reputation of being a little bit "touchy", but "buggy" is probably a better term.
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Next, right-click anywhere on the second sheet and select "Tweak" from the wheel menu. The tweak tool shows purple arrows next to the sheet. Click on the right side of one of the arrows to flip the sheet. The sheet turns over, so the exposed sidechains are now facing away from you. The sheet also moves toward the lower right, shifting over so it stays bonded to the two adjacent sheets.
   
For some reason, the [[Shake Sidechains|shake]] tool doesn't produce points after you flip the sheet. Shake should so ''something'' in this case, since lots of sidechains have moved. The protein will fly apart if you [[Wiggle|wiggle]] it after the flip.
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Flipping the sheet is the easy part. If you [[Wiggle|wiggle]] at this point, the protein will fly apart. If you [[Shake Sidechains|shake]], then wiggle, the protein will hold together, but you may not be able to get the required score. (Even if you repeat shake and wiggle.) You need a "local" strategy, that works on the worst parts of the protein first.
   
To get around this, freeze all four sheets by shift double-clicking on each one. Then start to wiggle. The protein will still pull apart, but it should start to come together again. When the sheets are bonded again, stop the wiggle and shake. Shake should now gain points. Stop the shake, and click on "Unfreeze Protein" (or keyboard shortcut "f"). Then wiggle again. This should be enough to complete the puzzle.
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When you flip the sheet, notice that the section of [[Loop|loop]] on the right between the top two sheets turns red. That means this section has problems. Right-click (or control-click) on one of the loop segments and select "Shake" from the wheel menu. Let it shake for a bit, then stop and select "Wiggle" from the wheel menu.
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After shaking and wiggling the bad loop, try shaking and wiggling the entire protein. This should allow you to finish the puzzle.
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There are other techniques to keep the protein from flying apart after flipping the sheet. These methods are "global", meaning that you shake and wiggle the whole protein at once instead of working on a small section.
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One alternative is to freeze all four sheets by shift double-clicking on each one. Then start to wiggle. The protein will still pull apart, but it should start to come together again. When the sheets are bonded again, stop the wiggle and shake. Stop the shake, and click on "Unfreeze Protein". Then wiggle again. This should be enough to complete the puzzle.
   
 
As usual, you can shake and wiggle a few more times to improve your score.
 
As usual, you can shake and wiggle a few more times to improve your score.
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You can also draw [[Band|bands]] between the sheets to hold them together, instead of or in addition to freezing them.
 
You can also draw [[Band|bands]] between the sheets to hold them together, instead of or in addition to freezing them.
   
Technical stuff: yes, Foldit has bugs. The Computer Science kind, not the Biology kind. Foldit player [http://fold.it/portal/user/83730 LennStar] pointed out that this intro puzzle had problems way back in 2009.
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Technical stuff: yes, Foldit has bugs. The Computer Science kind, not the Biology kind. Foldit player [http://fold.it/portal/user/83730 LennStar] pointed out that this intro puzzle had problems way back in 2009. Sometimes you just can't get the required 7700 points. Try resetting and using a different technique if this happens to you.
   
 
[https://www.youtube.com/watch?v=a3FhBTEhqew Madde's "Flippin' Sheets" video]
 
[https://www.youtube.com/watch?v=a3FhBTEhqew Madde's "Flippin' Sheets" video]
 
<br clear="all"/>
 
<br clear="all"/>
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<div align="center">
 
<div align="center">
 
<gallery widths="120" spacing="small" captionsize="small" captionalign="center" navigation="true" hideaddbutton="true">
 
<gallery widths="120" spacing="small" captionsize="small" captionalign="center" navigation="true" hideaddbutton="true">

Revision as of 21:32, March 13, 2017

Level 4-3 Flippin&#039; Sheets

Flippin' Sheets. Use the tweak tool to flip the section sheet from the top. No relation to Flippin, Arkansas.

In this puzzle, the second sheet from the top has two hydrophobics with blotchy yellow exposeds on them.

In the previous puzzle, the tweak tool was used to rotate a helix. In this puzzle, the tweak tool is used to "flip" a sheet. This turns the sheet over and moves it over a bit. In this case, flipping the sheet will hide the two hydrophobics in the core of the protein.

This puzzle can be a little touchy, so you may need to reset and try again a time or two. As a first step, shake the puzzle to clear up some of the starting clashes.

Next, right-click anywhere on the second sheet and select "Tweak" from the wheel menu. The tweak tool shows purple arrows next to the sheet. Click on the right side of one of the arrows to flip the sheet. The sheet turns over, so the exposed sidechains are now facing away from you. The sheet also moves toward the lower right, shifting over so it stays bonded to the two adjacent sheets.

Flipping the sheet is the easy part. If you wiggle at this point, the protein will fly apart. If you shake, then wiggle, the protein will hold together, but you may not be able to get the required score. (Even if you repeat shake and wiggle.) You need a "local" strategy, that works on the worst parts of the protein first.

When you flip the sheet, notice that the section of loop on the right between the top two sheets turns red. That means this section has problems. Right-click (or control-click) on one of the loop segments and select "Shake" from the wheel menu. Let it shake for a bit, then stop and select "Wiggle" from the wheel menu.

After shaking and wiggling the bad loop, try shaking and wiggling the entire protein. This should allow you to finish the puzzle.

There are other techniques to keep the protein from flying apart after flipping the sheet. These methods are "global", meaning that you shake and wiggle the whole protein at once instead of working on a small section.

One alternative is to freeze all four sheets by shift double-clicking on each one. Then start to wiggle. The protein will still pull apart, but it should start to come together again. When the sheets are bonded again, stop the wiggle and shake. Stop the shake, and click on "Unfreeze Protein". Then wiggle again. This should be enough to complete the puzzle.

As usual, you can shake and wiggle a few more times to improve your score.

You can also draw bands between the sheets to hold them together, instead of or in addition to freezing them.

Technical stuff: yes, Foldit has bugs. The Computer Science kind, not the Biology kind. Foldit player LennStar pointed out that this intro puzzle had problems way back in 2009. Sometimes you just can't get the required 7700 points. Try resetting and using a different technique if this happens to you.

Madde's "Flippin' Sheets" video

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