. 2016 Apr 1;2(2):69–73. doi: 10.1016/j.aninu.2016.03.007

Table 1.

Part of the amino acid transport system in mammalian intestinal epithelial cells.

System	cDNA	Gene	AA substrate	Mechanism	Iron	Expression
ASC	ASCT2	SLC1A5	A,S,C,T,Q	A	Na⁺	AM
B⁰	B⁰AT1	SLC6A19	AA⁰	S	Na⁺	AM
B^0,+	ATB^0,+	SLC6A14	AA⁰, AA⁺, β-Ala	S	Na⁺, Cl⁻	AM
b^0,+	rBAT/b^0,+AT	SLC3A1/SLC7A9	R,K,O	A	–	AM
IMINO	IMINO	SLC6A20	P,HO-P	S	Na⁺, Cl⁻	AM
L	4F2hc/LAT2	SLC3A2/SLC7A8	AA⁰ except P	A	–	BM
PAT	PAT1	SLC36A1	P,G,A,β-Ala	S	H⁺	BM
T	TAT1	SLC16A10	F,Y,W	U	–	BM
X⁻_AG	EAAT3	SLC1A1	E,D	S	Na⁺, H⁺, K⁺	AM
y⁺L	4F2hc/y⁺LAT1	SLC3A2/SLC7A7	K,R,Q,H,M,L	A	Na⁺	BM
y⁺L	4F2hc/y⁺LAT2	SLC3A2/SLC7A6	K,R,Q,H,M,L,A,C	A	Na⁺	BM
A	SNAT2	SLC38A2	G,P,A,S,C,Q,N,H	S	Na⁺	AM, BM
X⁻c	4F2 hc/xCT	SLC3A2/SLC7A11	E	A	–	AM, BM
y⁺	CAT-1	SLC7A1	R, K、O, H	U	–	AM, BM

A = anti-port; AM = apical membrane; AA⁰ = neutral amino acids; S = symport; AA⁺ = cationic amino acids; BM = basolateral membrane; U = uni-port.