Amino acid sequence comparisons between Type I MADS-box proteins and Type II MADS-box proteins from different plants. The name of each sequence consists of its Uniprot ID or GenBank accession number, followed by the species abbreviation according to Uniprot. The K-box domains, K1, K2 and K3 of the Type II MADS-box proteins are shown in boxes and indicated with red bars. The MADS-box domain is also indicated with a red bar. No K-box is present in the Type-I proteins. Identical amino acids are shown in dark blue and similar amino acids in light blue.