Figure 2
Crystal structure of the uncharacterized protein NP_823353.1 with a bound UNL resembling phenylalanine. UNL (unidentified ligand) atoms are represented as red spheres enveloped by the electron-density mesh (2Fo − Fc density contoured at 1σ level above the mean) and surrounded by the protein rendered in cartoon representation. Although the ligand looks like phenylalanine, it was annotated as a UNL since no definitive proof of its identity by other methods was available. |