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(New page: {{Sandbox_ESBS_2019}}<!-- PLEASE ADD YOUR CONTENT BELOW HERE --> ==Your Heading Here (maybe something like 'Structure')== <StructureSection load='1stp' size='340' side='right' caption='Cap...) |
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| - | == | + | ==4iv6== |
<StructureSection load='1stp' size='340' side='right' caption='Caption for this structure' scene=''> | <StructureSection load='1stp' size='340' side='right' caption='Caption for this structure' scene=''> | ||
| - | + | 4iv6 is an enzyme ''Mycobacterium tuberculosis'' which get his structure analyzed by Baugh et al. [https://www.ncbi.nlm.nih.gov/pubmed/25613812] with other enzymes homologue in order to fight ''Mycobacterium tuberculosis'' relative infections. | |
| - | + | ||
== Function == | == Function == | ||
| + | 4iv6 functions were not studied and only structural infos are disponible. | ||
| + | Nevertheless we can consider datas from other E.C.1.3.8.1[https://enzyme.expasy.org/EC/1.3.8.1] which came from other organisms. | ||
| + | E.C.1.3.8.1[https://enzyme.expasy.org/EC/1.3.8.1] is communly found in following pathways with various functions: | ||
| - | == | + | [[Analine metabolism]]:[https://www.brenda-enzymes.info/pathway_index.php?pathway=alanine%20metabolism&ecno=1.3.8.1] |
| - | + | [[Butanoate metabolism]]:[https://www.genome.jp/kegg-bin/show_pathway?map00650+1.3.8.1] | |
| - | == | + | [[Lipids metabolism]] : [https://www.brenda-enzymes.info/pathway_index.php?pathway=lipid%20metabolism&ecno=1.3.8.1][https://www.genome.jp/kegg-bin/show_pathway?map00071+1.3.8.1] |
| - | + | [[Valine Leucine and isoleucine pathways]]:[https://www.genome.jp/kegg-bin/show_pathway?map00280+1.3.8.1] | |
| + | |||
| + | |||
| + | ==Primary and Secondary structure<ref>http://www.rcsb.org/structure/4IV6</ref>== | ||
| + | |||
| + | Isovaleryl-CoA dehydrogenase is the assembly of '''<scene name='82/829361/2asymunit/1'>two asymmetric units</scene>''' each composed of '''two chains <scene name='82/829361/Chainea_asymunit/2'>A</scene> and <scene name='82/829361/Chaineb_asymunit/1'>B</scene>'''. Each of the two chains A and B are composed of 388 amino acids. An asymmetric unit is therefore composed of 776 amino acids and has a molecular weight of 86233.70 Da. | ||
| + | 1% of the unit's amino acid have incomplete sidechains, which means that there are 11 missing residue in the assymetric unit.<ref>https://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4iv6</ref> | ||
| + | |||
| + | The A chain is made up of <scene name='82/829361/Helixalphachaina_asymunit/1'>17 helices</scene> (involving 221 residues) and <scene name='82/829361/Betasheetchaina_asymunit/1'>14 beta-sheets</scene> (61 residues). | ||
| + | Chain B is formed of <scene name='82/829361/Helixchainb_asymunit/1'>17 helices</scene> (involving 218 residues) and <scene name='82/829361/Betasheetchainb_asymunit/1'>14 beta-sheets</scene> (62 residues). | ||
| + | |||
| + | ==Tertiary structures== | ||
| + | |||
| + | The two chains A and B of the isovaleryl-CoA dehydrogenase are linked by a <scene name='82/829361/Ligand_asymunit/1'>ligand</scene> (Dihydroflavine-Adenine Dinucleotide also known as [https://pubchem.ncbi.nlm.nih.gov/compound/Dihydroflavine-adenine-dinucleotide FADH2] ). | ||
| + | |||
| + | The protein is a tetramer, the surface between the two monomers of a single dimer of an acyl-CoA dehydrogenase contains the FAD binding sites and has extensive bonding interactions. There are 2 active sites in the tetramer, each of these 2 sites contains a FAD molecule and an acyl-CoA substrate binding site. <ref>https://en.wikipedia.org/wiki/Flavin_adenine_dinucleotide</ref> | ||
| + | |||
| + | ==Enzymatic reaction<ref>http://www.ebi.ac.uk/thornton-srv/databases/cgi-bin/pdbsum/GetPage.pl?pdbcode=4iv6</ref><ref>https://www.ebi.ac.uk/intenz/query?cmd=SearchEC&ec=1.3.8.1</ref><ref>https://enzyme.expasy.org/EC/1.3.8.1</ref>== | ||
| + | |||
| + | [[Enzyme accepted name]]: Short-chain acyl-CoA dehydrogenase | ||
| + | |||
| + | [[Other names]]:Butanoyl-CoA dehydrogenase, Butyryl dehydrogenase, Short-chain acyl CoA dehydrogenase, Unsatured acyl-CoA reductase. | ||
| + | |||
| + | [[Enzyme class]]: E.C.1.3.8.1[https://enzyme.expasy.org/EC/1.3.8.1] | ||
| + | |||
| + | [[Substrate]]: A short-chain acyl CoA | ||
| + | |||
| + | [[Prosthetic group]]: 1 electron-transfer flavoprotein such as FDA, for every Subunits | ||
| + | |||
| + | [[Products]]: a short-chain trans-2,3-dehydroacyl-CoA + reduced electron-transfer flavoprotein | ||
| + | |||
| + | [[Informed Pathways]]: Fatty acid degradation | ||
| + | |||
| + | [[Other information]]: | ||
| + | |||
| + | The enzyme from beef liver can accept acyl-chain lengths from 3 to 8 carbon atoms. From different organism the range can vary so we ignore if ''Mycobacterium tuberculosis'' gets the same lengths resolution. | ||
| + | |||
| + | The highest activity reported for beef liver enzyme was for substrates with 4 and 5 carbon acyl-chain lengths. | ||
| + | |||
| + | ==4IV6 as a research tool== | ||
| + | |||
| + | 4iv6 which belong to ''Mycobacterium tuberculosis'' was studied with other protein homolog. | ||
| + | They were chosen to be studied as potential TB-Drugs target | ||
| + | Studies have been made on homolog similarities aimed on their active site because with the knowledges of many homolog active site structure and how they work, we can design a inhibitor of those enzyme which can stop essential reaction and reduce or stop ''Mycobacterium tuberculosis'' infection. | ||
| + | This strategy is called an « Homolog-rescue strategy ». | ||
| + | This strategy can be generalized for other drug target for other diseases. | ||
| + | |||
| + | |||
| + | == Structural highlights summary == | ||
| + | |||
| + | <scene name='82/829361/Biological_unit/1'>Biological unit</scene> | ||
| + | |||
| + | <scene name='82/829361/2asymunit/1'>Asymmetric units</scene> | ||
| + | |||
| + | <scene name='82/829361/Betasheetchaina_asymunit/1'>Beta-sheets</scene> | ||
| + | |||
| + | <scene name='82/829361/Helixalphachaina_asymunit/1'>Helices</scene> | ||
| + | |||
| + | <scene name='82/829361/Secondary_structure/1'>Secondary structure</scene> | ||
| + | |||
| + | <scene name='82/829361/Chainea_asymunit/2'>A chain</scene> | ||
| + | |||
| + | <scene name='82/829361/Chaineb_asymunit/1'>B chain</scene> | ||
| + | |||
| + | <scene name='82/829361/Hydrophobic/1'>Hydrophobic region</scene> | ||
</StructureSection> | </StructureSection> | ||
== References == | == References == | ||
<references/> | <references/> | ||
Current revision
| This Sandbox is Reserved from 25/11/2019, through 30/9/2020 for use in the course "Structural Biology" taught by Bruno Kieffer at the University of Strasbourg, ESBS. This reservation includes Sandbox Reserved 1091 through Sandbox Reserved 1115. |
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4iv6
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References
- ↑ http://www.rcsb.org/structure/4IV6
- ↑ https://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4iv6
- ↑ https://en.wikipedia.org/wiki/Flavin_adenine_dinucleotide
- ↑ http://www.ebi.ac.uk/thornton-srv/databases/cgi-bin/pdbsum/GetPage.pl?pdbcode=4iv6
- ↑ https://www.ebi.ac.uk/intenz/query?cmd=SearchEC&ec=1.3.8.1
- ↑ https://enzyme.expasy.org/EC/1.3.8.1
