Sandbox Reserved 1452: Difference between revisions

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== Structural highlights ==
== Structural highlights ==
Uricase is mainly located in the liver where it forms an elctron dense crystalline core in peroxisomes. It is a tetramer of identical subunits each containing copper binding sites. X-ray crystallography shows that uric acid binds to the active site as a monoanion and is deprotonated as a dianion which is then stabilized by <scene name='77/778332/1vax_substrate_binding/1'>Arg/Glu 176 and Gln 228.</scene> Uricase can be inhibited by both cyanide and chloride ions. Oxonate competitively inhibits uricase.
Uricase is mainly located in the liver where it forms an elctron dense crystalline core in peroxisomes. It is a tetramer of identical subunits each containing copper binding sites. X-ray crystallography shows that uric acid binds to the active site as a monoanion and is deprotonated as a dianion which is then stabilized by <scene name='77/778332/1vax_substrate_binding/1'>Arg 176 and Gln 228.</scene> This specific enzyme is found in Aspergillus flavus which is a type of bacteria. Uricase can be inhibited by both cyanide and chloride ions. Oxonate competitively inhibits uricase.
This is <scene name='77/778332/1vax/1'>uricase</scene> without a ligand.
This is <scene name='77/778332/1vax/1'>uricase</scene> without a ligand.
You can view uricase with a ligand <scene name='77/778332/4mb8/1'>here.</scene>
You can view uricase with a ligand <scene name='77/778332/4mb8/1'>here.</scene>