1. The solution structure of serine protease PB92 from Bacillus alcalophilus presents a rigid fold with a flexible substrate-binding site John R Martin, Frans AA Mulder, Yasmin Karimi-Nejad, Johan van der Zwan, Matteo Mariani, Dick Schipper, Rolf Boelens Structure Volume 5, Issue 4, Pages 521-532 (April 1997) DOI: 10.1016/S0969-2126(97)00208-6

2. Figure 1 Structure 1997 5, 521-532DOI: (10.1016/S0969-2126(97)00208-6)

3. Figure 2 Structure 1997 5, 521-532DOI: (10.1016/S0969-2126(97)00208-6)

4. Figure 3 Structure 1997 5, 521-532DOI: (10.1016/S0969-2126(97)00208-6)

5. Figure 4 Structure 1997 5, 521-532DOI: (10.1016/S0969-2126(97)00208-6)