Antifreeze Proteins Collection

An antifreeze protein from the spruce budworm

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 An antifreeze protein from the spruce budworm

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.  

Binary Data antifreeze.mwc
MMDB

An antifreeze protein from the Winter Flounder (Pseudopleuronectes americanus).

Binary Data 1WFA.cn3
MMDB

An antifreeze protein from a snow flea (Hypogastrura harveyi)

Binary Data 3BOI.cn3
MMDB

An antifreeze protein from the Spruce Budworm (Choristoneura fumiferana).

Binary Data 1M8N.cn3
MMDB

An antifreeze protein from the perennial ryegrass (Lolium perenne).

Binary Data 3ULT.cn3
MMDB

An antifreeze protein from a longhorn beetle (Rhagium inquisitor).  See how water binds to this protein in iCn3D.  

Binary Data 4DT5.cn3
MMDB

An antifreeze protein from an Antarctic bacterium (Marinomonas primoryensis).

Binary Data 3P4G.cn3
MMDB

An antifreeze protein from a snow mold fungus (Typhula ishikariensis)

Binary Data 5B5H.cn3

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