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The tetramer interface that would be formed between two copies of S. solfataricus CTP synthase (red and blue). Clashes are observed between the helices running from residues 190 to 200 (the helix from the blue subunit is in cyan) and the loop running from residues 180 to 190 (emphasized in light blue) and the loop from residues 11 to 16 from the other subunit (pink). The helix running from residues 219 to 230 is emphasized in green. This figure was prepared in PyMOL (DeLano, 2002 ▶).
