What Is bulk REO? Bulk REO is when a lender has so many repossessed properties that it decides to sell them in bulk to investors. The government-sponsored agencies, Fannie Mae and Freddie Mac, as well as the FHA (Federal Housing Administration) have sold REO's in bulk, as have several of the largest banks.
Thick Filaments and its purpose. Thick filaments in a muscle fiber are made of many molecules of the protein myosin. Each myosin molecule has a fibrous tail region and a globular head. For clarity, only one head is shown here. Thin filaments are twisted chains made of the globular protein actin.
This structure will form the cross bridge that binds to the thin filament. Actin is the main protein of the thin filament. A second protein, called troponin, is found at intervals. When Ca++ binds to troponin, this allows myosin heads to bind to the actin of the thin filament, creating cross bridges.ince muscle cells are elongated and cylindrical, each muscle cell is usually called a muscle fiber. In skeletal muscle, the muscle fibers are very large, multinucleated, and up to several millimeters in length.