Ion pump

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Ion pumps are a "general class of integral membrane proteins that transport ions across a membrane against an electrochemical gradient."[1]

Contents

Classification

Symporters

Symporters are "membrane transporters that co-transport two or more dissimilar molecules in the same direction across a membrane. Usually the transport of one ion or molecule is against its electrochemical gradient and is 'powered' by the movement of another ion or molecule with its electrochemical gradient."[2]

Antiporters

Antiporters are "membrane transporters that co-transport two or more dissimilar molecules in the opposite direction across a membrane. Usually the transport of one ion or molecule is against its electrochemical gradient and is "powered" by the movement of another ion or molecule with its electrochemical gradient."[3]

References

  1. ↑ Anonymous, (2008) Ion pump (English). Medical Subject Headings. U.S. National Library of Medicine.
  2. ↑ Anonymous, (2008) Symporters (English). Medical Subject Headings. U.S. National Library of Medicine.
  3. ↑ Anonymous, (2008) Antiporters (English). Medical Subject Headings. U.S. National Library of Medicine.
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