| Alanine racemase A closer look at a non-contiguous domain This protein is homodimeric, but only one subunit is shown. The N-terminal domain is green, with N-terminal residues 1-12 colored blue. At residues 13-14 (red) it goes to form the yellow domain. At residues 242-243 (red) it comes back to finish the green domain.Shaw, J. P., Petsko, G. A., Ringe, D. 1sft (PDB) |