type I protein secretion system complex
type i protein secretion system complex
"A complex of three secretory proteins that carry out secretion in the type I secretion system: an inner membrane transport ATPase (termed ABC protein for ATP-binding cassette), which provides the energy for protein secretion; an outer membrane protein, which is exported via the sec pathway; and a membrane fusion protein, which is anchored in the inner membrane and spans the periplasmic space."