Epic Quest Bio The case files
Case No. 94 · have you seen this molecule?

Salivary amylase

starts digesting crackers before you swallow

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

Salivary amylase, front view, against a height chart in nanometers
FRONT
Salivary amylase, side view
SIDE · PDB 1SMD

The suspect, from its real atomic coordinates. Drag to turn it. Height chart in nanometers, a line every nanometer. An oyster cracker is about two million times wider.

Rap sheet

Answers to
Ptyalin, in old books.
Height
8.4 nm, standing on end.
Weight
93 zeptograms
Marks
A calcium ion and a chloride ion, tucked inside.
Habits
Chops starch into sugars. Thins a starchy mouthful in seconds.
Known for
Nearly half the protein in your spit.
Origins
Its gene comes in 2 to 15 copies, depending whose.
Last seen
One chewed oyster cracker in a 5 mL tube marked CRACKER, in the freezer at HQ.
140,000,000,000,000,000

of them in a teaspoon of spit, on average.
Depends whose. You’ve never seen one.

The poster on the street

The wanted poster for Salivary amylase

This is the photocopied wanted poster for Salivary amylase, No. 94. 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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