Sandbox Reserved 788

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This Sandbox is Reserved from Oct 10, 2013, through May 20, 2014 for use in the course "CHEM 410 Biochemistry 1 and 2" taught by Hanna Tims at the Messiah College. This reservation includes Sandbox Reserved 780 through Sandbox Reserved 807.

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spinqualitylabelsall models Phosphofructokinase Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image

This is the of Listeria innocua Phosphofructokinase, with an associated ATP, several magnesium ions, and glycerol molecule. It contains 10 . The pattern of shows there to be a mixture of parallel and anti-parallel β-sheets. The parallel sheets can be identified by the angled hydrogen bonds, while the anti-parallel sheets contain straight hydrogen bonds. A display of the hydrophobic (orange) and hydrophilic (blue) shows that the hydrophobic groups are predominantly in the center of the protein, while the hydrophilic groups occupy the periphery and the active site. associate with the surface and active site of the enzyme. The position of the water molecules corresponds with the of the hydrophilic side chains, which is to be expected. The that the model displays all interact with a molecule of glycerol, which is most likely an artifact of the purification and crystallization of the protein. The residues that interact with the glycerol are mostly charged, consisting of a lysine, an arginine, an aspartic acid and a histidine. There are also some nearby glycines, but these are most likely just nearby residues the program detected. Since glycerol is polar, it makes sense that hydrophilic residues associate with it. The program does not identify any residues that interact with the ATP or the two magnesium ions. The consists of four side chains, an alanine, an aspartic acid, and two glycines. And just for fun, the space-filling model of phosphofructokinase with its associated waters can be seen (orange = hydrophobic, maroon = hydrophilic, blue = water).