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. 2022 Feb 16;27(4):1341. doi: 10.3390/molecules27041341

Figure 1.

Figure 1

Structure of ovine respiratory CI (PDB ID 6ZKC) in ribbon representation [11]. Core subunits are colored, while supernumerary ones are in grey. The cofactors are reported as spheres colored according to the atom type, as well as the decyl-quinone molecules found in the structure. EPR visible FeS clusters are named according to [1,16]. The rotenone binding sites are also indicated: two sites correspond to the decyl-quinone sites, while the third site is located in the P-module in the ND4 subunit (dashed red circle).