Sodium–hydrogen antiporter

The sodium–hydrogen antiporter or sodium–hydrogen exchanger is a membrane protein found in many cells, and especially in those of the nephron of the kidney. It is primarily responsible for maintaining the balance of sodium.^[1]

Isoforms

There are several isoforms of the antiporter:

• Sodium–hydrogen antiporter 1
• Sodium–hydrogen antiporter 2
• Sodium–hydrogen antiporter 3
• Sodium–hydrogen antiporter 5
• Sodium–hydrogen antiporter 6
• Sodium–hydrogen antiporter 8

References

1. ^ VI. Mechanisms of Salt & Water Reabsorption

External links

• MeSH Sodium-Hydrogen+Exchanger

P-type ATPase (3.A.3)

• 3.A.3.1.1: Na⁺/K⁺ transporting: ATP1A1, ATP1A2, ATP1A3, ATP1A4, ATP1B1, ATP1B2, ATP1B3, ATP1B4, ATP1G1

• 3.A.3.1.2: H+/K+, H⁺/K⁺ exchanging: ATP4A, ATP4B

• 3.A.3.1.4: H⁺/K⁺ transporting, nongastric: ATP12A

• 3.A.3.2: Ca+ (SERCA, PMCA, SPCA) / Ca⁺⁺ transporting: ATP2A1, ATP2A2, ATP2A3, ATP2B1, ATP2B2, ATP2B3, ATP2B4, ATP2C1

• 3.A.3.5: Cu⁺⁺ transporting: ATP7A, ATP7B

• 3.A.3.8.8: flippase: ATP8A2

Other/ungrouped:

Na+/K+ - H+

• Mg⁺⁺ transporting: ATP3
• Class I, type 8: ATP8A1, ATP8B1, ATP8B2, ATP8B3, ATP8B4
• Class II, type 9: ATP9A, ATP9B
• Class V, type 10: ATP10A, ATP10B, ATP10D
• Class VI, type 11: ATP11A, ATP11B, ATP11C
• type 13: ATP13A1, ATP13A2, ATP13A3, ATP13A4, ATP13A5

see also ATPase disorders
B memb: cead, trns (1A, 1C, 1F, 2A, 3A1, 3A2-3, 3D), othr