Nodal Protein

**Definition:** The founding member of the nodal signaling ligand family of proteins. Nodal protein was originally discovered in the region of the mouse embryo primitive streak referred to as HENSEN'S NODE. It is expressed asymmetrically on the left side in chordates and plays a critical role in the genesis of left-right asymmetry during vertebrate development.

**Tree numbers:** - D12.644.276.954.550.650 - D12.776.467.942.550.650 - D23.529.942.550.650