Fig. 1.

C. elegans Fam20 exhibits a protein kinase-like fold contained in a shell-like structure. (A) Ribbon representation of ceFam20. The N- and C-lobes are shown in magenta and teal, respectively. The α6 helix (PKA αC equivalent) is highlighted in orange. The N-terminal segment and the insertion domain are in white and pink, respectively. (B) The amino acid sequence of ceFam20 is shown depicting the secondary structural elements, color-coded as in A. The disulfide bonds are indicated with green lines, and the N-linked glycosylation sites are highlighted in red.