The contribution of SNAT1 to system A amino acid transporter activity in human placental trophoblast

► mRNA levels for SNAT1 are higher than other system A subtype mRNAs in primary human cytotrophoblast. ► SNAT1 knockdown in cytotrophoblast cells significantly reduces system A activity. ► SNAT1 is a key contributor to system A-mediated amino acid transport in human placenta.