general transcription initiation factor activity +
membrane destabilizing activity
molecular adaptor activity +
molecular carrier activity +
molecular function regulator activity +
molecular sequestering activity +
molecular template activity +
molecular transducer activity +
nutrient reservoir activity
pore-forming activity
protein folding chaperone +
protein tag
A molecular function exhibited by a protein that is covalently attached (AKA tagged or conjugated) to another protein where it acts as a marker, recognized by the cellular apparatus to target the tagged protein for some cellular process such as modification, sequestration, transport or degradation.