But as the first such proteins were identified, they all turned out to have quite different structures.

Even though the protein has been identified earlier, its function was unknown until recently.

The small amounts required are probably one reason the protein was never identified before, the researchers say.

The proteins are then identified and the report is sent back to us.

The detective work needed to identify such proteins will be carried out at the institute.

In the case of Genocea, identifying proteins is just a first step.

The proteins have not been identified, so their function is not known.

In all 277 proteins were identified to contain them.

The proteins, a type called expansins, had previously been identified only in plants.

There are two main ways MS is used to identify proteins.