At the mRNA level, the expression of slc38a2 (SNAT2, sodium-dependent neutral amino acid transporter 2) coding for transporters common to Ser increased significantly at 1 h post-infection (Figure 2A), while the mRNA expression levels of the other Ser transporters (slc1a4, slc1a5, slc6a14, slc7a9, slc7a10, slc38a1, and slc38a4) showed no significant differences (Figure 2A). The gene discussed is SLC38A4; the disease is infection.