Recent progress of porcine milk components and mammary gland function

Table 2 Predominant amino acids transporters identified in porcine mammary glands

Systems	Proteins	Genes	Substrates
Cationic amino acid transporters
	CAT1	SLC7A1	Arg, Lys, His
	CAT2-B	SLC7A2	Arg, Lys, His
Neutral amino acid transporters
	ASCT1	SLC1A4	Ala, Ser, Cys
	ASCT2	SLC1A5	Ala, Ser, Cys, Thr, Gln
	LAT2	SLC7A8	Leu, Ile, Val, Trp
	SNAT2	SLC38A2	Gly, Pro, Ala, Ser, Cys, Gln, Asn, Ser, Met
Cationic and neutral amino acid transporters
	y⁺LAT1	SLC7A7	Lys, Arg, Gln, His, Met, Leu
	y⁺LAT2	SLC7A6	Lys, Arg, Gln, His, Met, Leu, Ala, Cys
	b^0,+AT	SLC7A9	Arg, Lys, Cys
	ATB^0,+	SLC6A14	All neutral and cationic amino acids
Anionic amino acid transporters
	EAAT3	SLC1A1	Glu, Asp

Note: References reporting amino acid transporters in porcine mammary gland: [79,80,81]

ISSN: 2049-1891