Expression of proposed methionine transporters along the gastrointestinal tract of pigs and their regulation by dietary methionine sources

Table 3 Protein expression data of selected methionine transporters among different intestinal and extraintestinal regions irrespective of the factor diet

Tissue	B⁰AT1	ASCT2	LAT2	LAT4
Oral mucosa	0.60 ± 0.11^cd	1.70 ± 0.26^ac	4.13 ± 0.44^b	7.50 ± 0.70^a
Cardia	1.41 ± 0.25^ab	0.78 ± 0.14^c	7.45 ± 1.70^a	0.98 ± 0.23^bc
Fundus	0.26 ± 0.05^d	0.62 ± 0.16^c	2.89 ± 0.64^bc	0.11 ± 0.03^c
Pylorus	0.67 ± 0.12^cd	0.77 ± 0.12^c	0.79 ± 0.14^d	1.00 ± 0.29^bc
Duodenum	0.79 ± 0.12^bd	0.99 ± 0.19^ac	2.09 ± 0.50^cd	1.02 ± 0.12^bc
Proximal jejunum	0.84 ± 0.12^bd	0.72 ± 0.10^c	1.60 ± 0.38^cd	0.93 ± 0.13^bc
Middle jejunum	0.67 ± 0.08^cd	0.87 ± 0.12^bc	0.73 ± 0.14^d	1.30 ± 0.22^bc
Ileum	1.92 ± 0.28^a	1.13 ± 0.20^ac	2.66 ± 0.64^bd	1.01 ± 0.17^bc
Caecum	0.48 ± 0.12^cd	1.99 ± 0.34^ab	0.91 ± 0.29^d	1.39 ± 0.20^b
Proximal colon	0.83 ± 0.12^bd	1.09 ± 0.16^ac	1.74 ± 0.35^cd	1.09 ± 0.18^bc
Distal colon	1.01 ± 0.14^bc	2.01 ± 0.35^a	2.07 ± 0.42^cd	0.87 ± 0.17^bc
P value	<0.001	<0.001	<0.001	<0.001

^a–dProtein expressions within one column are different at P < 0.05 if they do not share a common letter.

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