PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 24259683-4 2014 Expression in Xenopus laevis oocytes and two-electrode voltage clamp measurements showed that VvNPF3.2 is a low-affinity transporter for both nitrate and nitrite and displays characteristics of NPF members from other plants. Nitrates 142-149 protein NRT1/ PTR FAMILY 3.1 Vitis vinifera 94-102