Closer look at the interfaces
Table 1. H-bonds between IML3 and CHL4.
There are 18 H-bonds between IML3 and CHL4, but no salt bridges (Table 1).
Between IML3 and CTF3, three H-bonds and one salt bridge are formed (Table 2).
Examples of non-covalent bonds are shown in the figures below.
Table 2. H-bonds and salt bridge between IML3 and CTF3
Fig. 2: Example of H-bonds between IML3 (in cyan) and CTF3 (in green).
Fig. 1: Salt bridge between IML3 (in cyan) and CTF3 (in green).
Fig. 3: H-bond between IML3 (in cyan) and CHL4 (in red) with Y193 and N423 participating in.
Fig. 4: Example of H-bond formation between IML3 (in cyan) and CHL4 (in red). (Residues that participate in: E195 and N391.)