sequence unit in a sentence

1. Motifs are usually shorter sequence units found outside of globular domains.
2. Domains are defined as an autonomous structural unit or reusable sequence unit that can be found in multiple protein contexts.
3. There is a small band of Temblor Formation, a Great Valley Sequence unit usually found much farther north, encircling the high ridge of the mountain.
4. It may have its own internal control sequence unit, which is not to be confused with the CPU's main control unit, some registers, and other internal units such as an arithmetic logic unit ( ALU ) or a floating-point unit ( FPU ), or some smaller and more specific components.
5. It's difficult to find sequence unit in a sentence.