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. Author manuscript; available in PMC: 2022 Apr 12.
Published in final edited form as: J Physiol. 2020 Feb 3;598(8):1625–1639. doi: 10.1113/JP278933

Figure 1. Relationship between Na+K+-ATPase and system A and L amino acid transporters.

Figure 1.

Na+K+-ATPase establishes a sodium gradient that is necessary for the function of system A transporters. System A transporters carry small neutral amino acids (SNAA) into the cell in cotransport with sodium. System L transporters exchange extracellular branched chain amino acids (BCAA) for intracellular SNAA.