User:Tori Templin/Sandbox 1: Difference between revisions
Tori Templin (talk | contribs) No edit summary |
Tori Templin (talk | contribs) No edit summary |
||
| Line 26: | Line 26: | ||
was found to be the active arrangement. | was found to be the active arrangement. | ||
The | The | ||
<scene name='87/877604/Dimer_interface/ | <scene name='87/877604/Dimer_interface/11'>dimer-dimer interface</scene> | ||
is mobile and mostly hydrophobic, and the residues interact in a shape-complementary manner. It was also found that the reaction chamber is shielded by a lid from the cytosolic side, which leads to low catalytic activity. The binding of acyl-CoA and cholesterol induce conformational changes that activate the tunnels. Work is still being done to fully determine the mechanism of this reaction, but this is the proposed pathway. The cholesterol enters through the T tunnel while the acyl-CoA enters through the C tunnel. The reaction is catalyzed at the intersection of the two tunnels, where the His460 residue is located. The CoASH is released to the cytosol from the C tunnel, but the cholesterol ester either exits from the T tunnel to the membrane or through the L tunnel to the lumen. | is mobile and mostly hydrophobic, and the residues interact in a shape-complementary manner. It was also found that the reaction chamber is shielded by a lid from the cytosolic side, which leads to low catalytic activity. The binding of acyl-CoA and cholesterol induce conformational changes that activate the tunnels. Work is still being done to fully determine the mechanism of this reaction, but this is the proposed pathway. The cholesterol enters through the T tunnel while the acyl-CoA enters through the C tunnel. The reaction is catalyzed at the intersection of the two tunnels, where the His460 residue is located. The CoASH is released to the cytosol from the C tunnel, but the cholesterol ester either exits from the T tunnel to the membrane or through the L tunnel to the lumen. | ||