2.A.17.3.29
SLAC1/SLAH nitrate transporter (slow anion channel-associated homologue) of 565 aas and 12 TMSs in a 6 + 6 TMS arrangement. This protein was identified and partially characterized in wheat (Kumar et al. 2022). Increased transmembrane transport of per- and polyfluoroalkyl substances (PFASs), stimulated by humic acid (HA) is mainly driven by the slow-type anion channel pathways interacting with Ca²⁺-dependent protein kinases (Ca²⁺-CDPK-SLAC1). The promoted transmembrane transport of PFASs might cause adverse effects on the plant cell wall (Liu et al. 2023). Expression levels and purification of inorganic nitrogen transporters, NPF4.5, NPF8.3, NRT3.1 and AMT1.2 have been determined in wheat (Wei et al. 2024).