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. 2016 Jun 7;11(6):e0156551. doi: 10.1371/journal.pone.0156551

Table 3. Values for multiple components of inhibition by L-glutamine and t-Pro of [3H]L-serine and [3H]D-serine transport into rat hippocampal astrocyte cultures.

[3H]D-serine Transport Component 1 IC50 μM Component 2 IC50 μM Component 1 (%) N
L-glutamine 26.0±2.8 2494±320 35.1±0.02 3
t-Pro 23.9±9.4 2869±1463 60.6±0.06 3
[3H]L-serine Transport Component 1 IC50 μM Component 2 IC50 μM Component 1 (%) N
L-glutamine 30.3±11.3 3030±691 41.7±4.0 7
t-Pro 21.3±4.9 2498±299 46.0±4.8 8

Components 1 and 2 were defined by the two-site curve-fitting program in GraphPad Prism. Values are the mean ± SEM of n observations. t-Pro is L-trans-4-hydroxyproline.