How do covalent and non-covalent interactions affect protein migration in SDS-PAGE?

Both covalent and non-covalent interactions are unaffected by SDS.

Covalent interactions enhance protein migration speed.

Covalent interactions are cleaved by SDS, while non-covalent interactions are not.

Non-covalent interactions are disrupted by SDS, but covalent disulfide bonds require beta mercaptoethanol to be cleaved.