Fig. 1. Domain structure of GRO/TUP1-like co-repressors in Arabidopsis (LUG and LUH) and Antirrhinum (STY and STY-L). Individual domains are shown in boxes with different shading and domain designations are indicated for the LUG protein (Conner and Liu, 2000). Numbers show the position of amino acids within the proteins. Italic numbers indicate the percentage similarities relative to LUG domains (percentage similarity between LUH and STY-L in brackets). Asterisk indicates the position of the mutation in the sty allele. The sizes of domains are approximately to the scale.