Epic Quest Bio The case files
Case No. 139 · the exotic forty · have you seen this molecule?

Gamma-crystallin

the protein older than you are

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

Gamma-crystallin, front view, against a height chart in nanometers
FRONT
Gamma-crystallin, side view
SIDE · PDB 1HK0

The suspect, from its real atomic coordinates. Drag to turn it. Height chart in nanometers, ruled every 0.5 nm. Your eye lens is about one and a half million times wider.

Rap sheet

Answers to
γD-crystallin, CRYGD.
Height
5.8 nm, standing on end.
Weight
34 zeptograms.
Build
Two domains, four Greek keys.
Lifespan
Yours. It is never replaced.
Habits
Lives in cells that threw out their nuclei.
Marks
Its carbon-14 gives away your birth year. Forensics noticed.
Associates
Lens proteins like it dated a Greenland shark at 392 ± 120 years.
Last seen
At the center of your eye lens, reading this.
130,000,000,000,000,000

of them at the centers of your two eye lenses, made around your birth, give or take.
You’ve never seen one. You see through them.

CASE FILE: Lynnerup, N. et al. (2008) Radiocarbon Dating of the Human Eye Lens Crystallines Reveal Proteins without Carbon Turnover throughout Life. PLoS ONE 3, e1529.

The poster on the street

The wanted poster for Gamma-crystallin

This is the photocopied wanted poster for Gamma-crystallin, No. 139 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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