Teratocarcinoma-derived growth factor 1 (TDGF1)

GPI-anchored cell membrane protein involved in Nodal signaling. Cell-associated TDGF1 acts as a Nodal coreceptor in cis.

Shedding of TDGF1 by TMEM8A modulates Nodal signaling by enabling soluble TDGF1 to act as a Nodal coreceptor on other tissues (PubMed:27881714). Could play a role in the determination of the epiblastic cells which then give rise to the mesoderm (PubMed:11909953).