Sandbox Reserved 333: Difference between revisions

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<scene name='Sandbox_Reserved_333/Fig2/1'>gggggg</scene>
<scene name='Sandbox_Reserved_333/Fig2/1'>gggggg</scene>


 
=Structure=
:Mevalonate diphosphate decarboxylase exists as a symmetrical dimer<ref name = "Byres"/> <ref name = "Voynova"/> <ref name ="ByresMartin"/> . The C-terminal domains of each monomer are symmetrically oriented towards one another around a solvent-filled channel <ref name = "Byres"/>. The dimer is stabilized between alpha helices 6 and 10 on the monomers, and also through salt bridge interactions, tyrosine and proline stacking, and hydrophobic interactions <ref name = "Byres"/>. The interface between the monomers is very small, with only 7% of the total surface area of the monomer engaged in the interface interaction <ref name = "Voynova"/>. This small interface between monomers is a characteristic of GHMP kinases <ref name = "Voynova"/>. Each monomer consists of a single polypeptide chain with 331 amino acid residues. Each polypeptide chain has 13 alpha helices and 15 beta chains. The active site on each monomer is a deep, highly charged cleft made up seven segments of polypeptide chain, which is located away from the other monomer, and is unaffected by dimerization <ref name = "Byres"/>. An ATP binding polypeptide segment called the P loop is also located near the active site <ref name = "Byres"/>.  A total of 19 amino acid residue side chains are involved with substrate binding in the active site <ref name = "Byres"/>.
<Structure load= 2hk3 size='400' frame='true' align='left' caption='Fig 2: Active site of MDD' scene='Insert optional scene name here' />
<Structure load= 2hk3 size='400' frame='true' align='left' caption='Fig 2: Active site of MDD' scene='Insert optional scene name here' />


[[Image:Trial_1.png|thumb|Caption 1]]
[[Image:Trial_1.png|thumb|Caption 1]]