They are most commonly used to identify and locate intracellular and extracellular proteins.

Care must be taken not to burst cells, releasing intracellular proteins.

This intracellular protein recognizes the capsid of various retroviruses and blocks their reproduction.

Ubiquitin exists in cells either free or covalently linked to a huge variety of intracellular proteins.

Rudd was the first to discover that intracellular protein kinases can interact with surface receptors.

During their normal life cycles, virions produce extracellular and intracellular proteins.

Therefore, intracellular proteins do not need to develop acid stability through evolution.

The eosinophilic structures are generally composed of intracellular or extracellular protein.

Ferritin is a ubiquitous intracellular protein that stores iron and releases it in a controlled fashion.

This receptor is bound to intracellular proteins, known as G proteins, which begin the information cascade within the cell.