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Mitochondrial Calcium Uniporter PDB ID: 5ID3 3d printed

Not a Photo

Coated Full Color Sandstone
Mitochondrial Calcium Uniporter PDB ID: 5ID3 3d printed
Mitochondrial Calcium Uniporter PDB ID: 5ID3 3d printed

Not a Photo

Mitochondrial Calcium Uniporter PDB ID: 5ID3

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Product Description
[color=#333333]Protein Description
Mitochondria from many eukaryotic clades take up large amounts of calcium (Ca(2+)) via an inner membrane transporter called the uniporter. Transport by the uniporter is membrane potential dependent and sensitive to ruthenium red or its derivative Ru360 (ref. 1). Electrophysiological studies have shown that the uniporter is an ion channel with remarkably high conductance and selectivity. Ca(2+) entry into mitochondria is also known to activate the tricarboxylic acid cycle and seems to be crucial for matching the production of ATP in mitochondria with its cytosolic demand. Mitochondrial calcium uniporter (MCU) is the pore-forming and Ca(2+)-conducting subunit of the uniporter holocomplex, but its primary sequence does not resemble any calcium channel studied to date. Here we report the structure of the pore domain of MCU from Caenorhabditis elegans, determined using nuclear magnetic resonance (NMR) and electron microscopy (EM). MCU is a homo-oligomer in which the second transmembrane helix forms a hydrophilic pore across the membrane. The channel assembly represents a new solution of ion channel architecture, and is stabilized by a coiled-coil motif protruding into the mitochondrial matrix. The critical DXXE motif forms the pore entrance, which features two carboxylate rings; based on the ring dimensions and functional mutagenesis, these rings appear to form the selectivity filter. To our knowledge, this is one of the largest membrane protein structures characterized by NMR, and provides a structural blueprint for understanding the function of this channel.

Model Description
This 3D print of MCU is colorized by the protein's hydrophobicity, or how much it wants to be around water. Blue represents hydrophillic regions, red hydrophobic.[/color]
What's in the box:
Mdm: 5ID3 MCU
10 x 7 x 8 cm
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3 x 2 x 3 inches
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