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A membrane transport protein is a membrane protein involved in the movement of ions, small molecules, and macromolecules, such as another protein, across a biological membrane. Transport proteins are integral transmembrane proteins ; that is they exist permanently within and span the membrane across which they transport substances.
In terms of membrane transport the gradient is of interest as it contributes to decreased system entropy in the co-transport of substances against their gradient. One of the most important pumps in animal cells is the sodium potassium pump, that operates through the following mechanism: [9]
Mitochondrial membrane transport proteins, also known as mitochondrial carrier proteins, are proteins which exist in the membranes of mitochondria. They serve to transport [2] molecules and other factors, such as ions, into or out of the organelles. Mitochondria contain both an inner and outer membrane, separated by the inter-membrane space, or ...
Research suggests that potassium, calcium and sodium channels can function as oxygen sensors in mammals and plants, [3] [4] and has correlated defects in specific carrier proteins with specific diseases. [5] A membrane transport protein (or simply transporter) is a membrane protein [6] that acts as such a carrier. A vesicular transport protein ...
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Schematic representation of transmembrane proteins: 1) a single-pass membrane protein 2) a multipass membrane protein (α-helix) 3) a multipass membrane protein β-sheet. The membrane is represented in light yellow. A transmembrane protein is a type of integral membrane protein that spans the entirety of the cell membrane.
There are several families that function in amino acid transport, some of these include: TC# 2.A.3 - Amino Acid-Polyamine-Organocation (APC) Superfamily; TC# 2.A.18 - Amino Acid/Auxin Permease (AAAP) Family
Membrane transport protein; Mercury transporter; Microbial rhodopsin; Mitochondrial calcium uniporter; Mitochondrial fusion; Monocarboxylate transporter; Monovalent cation:proton antiporter-1; Monovalent cation:proton antiporter-2; Monovalent cation:proton antiporter-3; Mrp superfamily; Mu1/6 holin family