α-Lytic Protease activity is inhibited by:
1.0% sodium deoxycholate: ∼60% active
0.1% SDS: ~50 active
1% SDS: 40% active
1 M guanidine hydrochloride: ∼20% active
4 M guanidine hydrochloride: no activity
Serine protease inhibitors, such as PMSF: no activity