This post is showing the neutral aminoacid transport.

In the basolateral membrane:

• The Na/K ATPase, which brings 2 potassium ions into the cell and releases 3 sodium ions into the interstitial space.
• The LAT2, large neutral amino acid transporter, works as an amino acid exchanger.
• The TAT1, aromatic amino acid transporter, which transports these amino acids out of the cell.

In the apical membrane:

• The SIT1 cotransporter with sodium which brings in mainly proline.
• The PAT2 cotransporter with a proton which brings in proline, alanine and glycine.
• The ASTC2 antiporter which exchanges neutral aminoacids while transporting sodium into the tubular lumen.
• The B⁰AT1 cotransporter which brings in a sodium and a neutral amino acid.

Previous Posts in this Series

Renal Tubular Transport #1. S1 Segment, Proximal Tubule. Sodium Transport 1 (Sodium/Hydrogen Ion Transport) (2nd Edition)

Renal Tubular Transport #2. S1 Segment, Proximal Tubule. Sodium Transport 2 (Sodium/Phosphate Transport) (2nd Edition)

Renal Tubular Transport #3. S1 Segment, Proximal Tubule. Sodium Transport 3

Renal Tubular Transport #4. S1 Segment, Proximal Tubule. Sodium Transport 4

Renal Tubular Transport #5. S1 Segment, Proximal Tubule. Sodium Transport 5

Renal Tubular Transport #6. S1 Segment, Proximal Tubule. Sodium Transport 6

Renal Tubular Transport #7. S1 Segment, Proximal Tubule. Sodium Transport 7

Renal Tubular Transport #8. S1 Segment, Proximal Tubule. Sodium Transport 8

Renal Tubular Transport #9. S1 Segment, Proximal Tubule. Potassium Transport 1

Renal Tubular Transport #10. S1 Segment, Proximal Tubule. Potassium Transport 2

Renal Tubular Transport #11. S1 Segment, Proximal Tubule. Calcium Transport 1

Renal Tubular Transport #12. S1 Segment, Proximal Tubule. Water Transport 1

Renal Tubular Transport #13. S1 Segment, Proximal Tubule. Magnesium Transport 1

Renal Tubular Transport #14. S1 Segment, Proximal Tubule. Glucose Transport 1

Renal Tubular Transport #15. S1 Segment, Proximal Tubule. Phosphate Transport 1

Renal Tubular Transport #16. S1 Segment, Proximal Tubule. Organic Anion Transport 1