Novel dimer structure of a membrane-bound protease with a catalytic Ser–Lys dyad and its linkage to stomatin

Figure 5
Stereo representation of 1510-N K138A viewed from almost the same direction as Fig. 2

. Ser97, Ala138, the L2 loop and neighboring residues are shown in stick models of the same color as Fig. 2

, and C

traces are shown in pink.