Figure 6.
Sequence conservation and functional domains of the newly characterized NMD factors. (A) Schematic representation of the human NAG, which is the homolog of C. elegans SMGL-1. Black boxes represent the regions of sequence conservation within proteins; the level of conservation is indicated. WD40 domains within the N terminus of the protein are indicated by brackets above the protein. (B) Schematic representation of the human DHX34, which is the homolog of C. elegans SMGL-2. Black boxes represent the regions of sequence conservation within proteins; the level of conservation is indicated. Functional domains associated with ATP-dependent RNA helicases (DEXDc, HELICc, PFAM:HA2, and PFAM:DUF 1605) are indicated by brackets above the protein.