Sodium-proton antiporter
Na+/H+ antiporter 1 | |||||||||
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Identifiers | |||||||||
Symbol | Na_H_antiport_1 | ||||||||
Pfam | PF06965 | ||||||||
InterPro | IPR004670 | ||||||||
TCDB | 2.A.36 | ||||||||
OPM superfamily | 346 | ||||||||
OPM protein | 1zcd | ||||||||
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Sodium/proton antiporters are essential secondary-active transporters for sodium and pH homeostasis. In human cells, defects in sodium/proton antiport result in heart or kidney failure and other serious diseases.[1][2]
Families
There are several families of Sodium:Proton antiporters (belonging to several superfamiles) that facilitate the exchange of sodium ions with protons across the lipid membrane. Some of these protein families include:[3]
- TC# 2.A.33 - Na+:H+ Antiporter (NhaA) Family
- TC# 2.A.34 - Na+:H+ Antiporter (NhaB) Family
- TC# 2.A.35 - Na+:H+ Antiporter (NhaC) Family
- TC# 2.A.36 - Monovalent Cation:Proton Antiporter-1 (CPA1) Family
- TC# 2.A.37 - Monovalent Cation:Proton Antiporter-2 (CPA2) Family
- TC# 2.A.62 - Na+:H+ Antiporter (NhaD) Family
- TC# 2.A.63 - Monovalent Cation (K+ or Na+):Proton Antiporter-3 (CPA3) Family
- TC# 2.A.111 - Na+:H+ Antiporter (NhaE) Family
References
This article incorporates text from the public domain Pfam and InterPro IPR004670
- ↑ Paulino, Cristina; Kühlbrandt, Werner (2014-01-28). "pH- and sodium-induced changes in a sodium/proton antiporter". eLife 3. doi:10.7554/elife.01412.
- ↑ Padan, E.; Venturi, M.; Gerchman, Y.; Dover, N. (2001-05-01). "Na(+)/H(+) antiporters". Biochimica Et Biophysica Acta 1505 (1): 144–157. ISSN 0006-3002. PMID 11248196.
- ↑ "TCDB » HOME". Transporter Classification Database. Retrieved 2016-03-14.
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