A collection of antifreeze proteins. Antifreeze proteins are found in a variety of species that tolerate cold temperatures. These include arctic fish, antarctic bacteria, plants, insects, and mold.
All of these proteins bind to water and lower the freezing point. Can you figure out what these proteins have in common besides their function?
Structures in the collection
| Type | Description | Download structure |
|---|---|---|
| An MW Collection |
Download the .mwc collection file to view seven different antifreeze proteins. To view the collection, you will need to download and install the iPad version of Molecule World. Once Molecule World is installed on your iPad, return to this page and download the entire collection at once by selecting the mwc file. |
 antifreeze.mwc |
| MMDB |
 An antifreeze protein from the Winter Flounder (Pseudopleuronectes americanus). |
1WFA.cn3 |
| MMDB |
 An antifreeze protein from a snow flea (Hypogastrura harveyi) |
3BOI.cn3 |
| MMDB |
 An antifreeze protein from the Spruce Budworm (Choristoneura fumiferana). |
1M8N.cn3 |
| MMDB |
 An antifreeze protein from the perennial ryegrass (Lolium perenne). |
3ULT.cn3 |
| MMDB |
 An antifreeze protein from a longhorn beetle (Rhagium inquisitor). See how water binds to this protein in iCn3D. |
4DT5.cn3 |
| MMDB |
 An antifreeze protein from an Antarctic bacterium (Marinomonas primoryensis). |
3P4G.cn3 |
| MMDB |
 An antifreeze protein from a snow mold fungus (Typhula ishikariensis) |
5B5H.cn3 |