Knotted protein UU089.1
File sealed
The detectives are still writing this one up. The poster and the facts are below; the film and the interrogation room open soon.
Booking photographs
The suspect, from its real atomic coordinates. Drag to turn it. Height chart in nanometers, ruled every 0.1 nm. About 30,000, stacked, would span a human hair. Mugshot: the bare chain, so you can follow the knot.
Rap sheet
- Answers to
- Q9PR55. No known job.
- Height
- 2.8 nm bare, as drawn. 4.1 nm dressed.
- Weight
- 17 zeptograms
- Crossings
- Seven: a 71 knot. A cousin ties five, on AlphaFold’s word.
- Build
- A twisted barrel. Five phenylalanines stick out like a star.
- Habits
- Shrugs off 7.2 M urea. Resists ClpXP.
- First seen
- In a computer: AlphaFold called the knot. Crystals agreed to 0.36 Å.
- Status
- Former record holder. Beaten by an eight-crossing knot five times longer.
- Last seen
- In a 2.3 Å crystal, eight to the asymmetric unit, in a lab in Taipei.
crossings in one chain of 89 amino acids. Nobody tied it.
You’ve never seen one.
The poster on the street
This is the photocopied wanted poster for Knotted protein UU089.1, No. 105 of the exotic forty. They were made for noticeboards around Boston, Cambridge and the rest of the east coast.
Found one? Scan its QR code with your phone. If you're a signed-in player, the sighting goes on your record with +1 XP.
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