The dystrophin-associated protein complex includes dystrophin. Dystrophin binds to actin of the cytoskeleton, and also to proteins in the extracellular matrix.
The dystrophin-associated protein complex also contains dystrophin-associated proteins. This includes a four subunit sarcoglycan complex, which is fixed to dystrophin in muscle cells.
In the epithelia of the kidney, dystrophin may be replaced with utrophin.
Aquaporin 4 may be connected to the dystrophin-associated protein complex.