Not gp, but the protein structure implies the ability to fold materials and expand them really fast. It might be helpful in designing new space habitats. Alternatively, the proteins could be used to contain liquids in zero gravity. If you have a way to extract the proteins, you are left again with just water.
This probably wouldn't work. It's a biological system, so past a pretty tight temperature range the weak bonding forces of the protiens will denature, or lock up from the cold.