Source:http://linkedlifedata.com/resource/umls/id/C1159772
GO: The directed movement of proteins in a cell, including the movement of proteins between specific compartments or structures within a cell, such as organelles of a eukaryotic cell. [GOC:mah],NCI: The process whereby cellular proteins are positioned and sequestered in the correct cellular compartment for proper function. The process involves moving proteins from one cellular compartment to another by various sorting and transport mechanisms such as gated transport, protein translocation, and vesicular transport.