Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At1g08230	High affinity gamma-aminobutyric acid (GABA) transporter probably involved in GABA uptake into cells.	AtGAT1, a high affinity transporter for gamma-aminobutyric acid in Arabidopsis thaliana.; 2006; DOI: 10.1074/jbc.m510766200; PMID: 16407306; https://pubmed.ncbi.nlm.nih.gov/16407306/
Arabidopsis	At5g41800	May be involved in the transport of GABA.	No verified direct reference in this release
Arabidopsis	At5g40780	Amino acid-proton symporter.	Arabidopsis LHT1 is a high-affinity transporter for cellular amino acid uptake in both root epidermis and leaf mesophyll.; 2006; DOI: 10.1105/tpc.106.041012; PMID: 16816136; https://pubmed.ncbi.nlm.nih.gov/16816136/ | Comprehensive screening of Arabidopsis mutants suggests the lysine histidine transporter 1 to be involved in plant uptake of amino acids.; 2007; DOI: 10.1104/pp.106.092205; PMID: 17293438; https://pubmed.ncbi.nlm.nih.gov/17293438/ | Root uptake of cationic amino acids by Arabidopsis depends on functional expression of amino acid permease 5.; 2008; DOI: 10.1111/j.1469-8137.2008.02589.x; PMID: 18681934; https://pubmed.ncbi.nlm.nih.gov/18681934/ | LHT1, a lysine- and histidine-specific amino acid transporter in arabidopsis.; 1997; DOI: 10.1104/pp.115.3.1127; PMID: 9390441; https://pubmed.ncbi.nlm.nih.gov/9390441/
Arabidopsis	At2g39890	Proline transporter that mediates proline and glycine betaine transport.	The AtProT family. Compatible solute transporters with similar substrate specificity but differential expression patterns.; 2005; DOI: 10.1104/pp.104.055079; PMID: 15618414; https://pubmed.ncbi.nlm.nih.gov/15618414/ | Salt stress-induced proline transporters and salt stress-repressed broad specificity amino acid permeases identified by suppression of a yeast amino acid permease-targeting mutant.; 1996; DOI: 10.1105/tpc.8.8.1437; PMID: 8776904; https://pubmed.ncbi.nlm.nih.gov/8776904/
Rice	UniProt: Q69LA1	Proline transporter that mediates proline transport across the plasma membrane.	No verified direct reference in this release