Figure 1From: Quaternary structures of recombinant, cellular, and serum forms of Thymidine Kinase 1 from dogs and humansAmino acid sequence alignment of canine and human TK1. Residues that differ between the two sequences are shaded. Cysteines that are present in the human but not in the canine sequence are marked with squares. The Zn-binding cysteines are shaded in yellow. GenBank accession numbers are XM_540461 (dog) and KO_2582 (human).Back to article page