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| | <StructureSection load='2pff' size='340' side='right'caption='[[2pff]], [[Resolution|resolution]] 4.00Å' scene=''> | | <StructureSection load='2pff' size='340' side='right'caption='[[2pff]], [[Resolution|resolution]] 4.00Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2pff]] is a 9 chain structure with sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2PFF OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=2PFF FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2pff]] is a 9 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2PFF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2PFF FirstGlance]. <br> |
| | </td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=UNK:UNKNOWN'>UNK</scene></td></tr> | | </td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=UNK:UNKNOWN'>UNK</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Fatty-acyl-CoA_synthase Fatty-acyl-CoA synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.1.86 2.3.1.86] </span></td></tr> | + | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Fatty-acyl-CoA_synthase Fatty-acyl-CoA synthase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.1.86 2.3.1.86] </span></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=2pff FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pff OCA], [http://pdbe.org/2pff PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2pff RCSB], [http://www.ebi.ac.uk/pdbsum/2pff PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2pff ProSAT]</span></td></tr> | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2pff FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pff OCA], [https://pdbe.org/2pff PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2pff RCSB], [https://www.ebi.ac.uk/pdbsum/2pff PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2pff ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/FAS2_YEAST FAS2_YEAST]] Fatty acid synthetase catalyzes the formation of long-chain fatty acids from acetyl-CoA, malonyl-CoA and NADPH. The alpha subunit contains domains for: acyl carrier protein, 3-oxoacyl-[acyl-carrier-protein] reductase, and 3-oxoacyl-[acyl-carrier-protein] synthase. This subunit coordinates the binding of the six beta subunits to the enzyme complex.[HAMAP-Rule:MF_00101] [[http://www.uniprot.org/uniprot/FAS1_YEAST FAS1_YEAST]] Fatty acid synthetase catalyzes the formation of long-chain fatty acids from acetyl-CoA, malonyl-CoA and NADPH. The beta subunit contains domains for: [acyl-carrier-protein] acetyltransferase and malonyltransferase, S-acyl fatty acid synthase thioesterase, enoyl-[acyl-carrier-protein] reductase, and 3-hydroxypalmitoyl-[acyl-carrier-protein] dehydratase. | + | [[https://www.uniprot.org/uniprot/FAS2_YEAST FAS2_YEAST]] Fatty acid synthetase catalyzes the formation of long-chain fatty acids from acetyl-CoA, malonyl-CoA and NADPH. The alpha subunit contains domains for: acyl carrier protein, 3-oxoacyl-[acyl-carrier-protein] reductase, and 3-oxoacyl-[acyl-carrier-protein] synthase. This subunit coordinates the binding of the six beta subunits to the enzyme complex.[HAMAP-Rule:MF_00101] [[https://www.uniprot.org/uniprot/FAS1_YEAST FAS1_YEAST]] Fatty acid synthetase catalyzes the formation of long-chain fatty acids from acetyl-CoA, malonyl-CoA and NADPH. The beta subunit contains domains for: [acyl-carrier-protein] acetyltransferase and malonyltransferase, S-acyl fatty acid synthase thioesterase, enoyl-[acyl-carrier-protein] reductase, and 3-hydroxypalmitoyl-[acyl-carrier-protein] dehydratase. |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
| Structural highlights
Function
[FAS2_YEAST] Fatty acid synthetase catalyzes the formation of long-chain fatty acids from acetyl-CoA, malonyl-CoA and NADPH. The alpha subunit contains domains for: acyl carrier protein, 3-oxoacyl-[acyl-carrier-protein] reductase, and 3-oxoacyl-[acyl-carrier-protein] synthase. This subunit coordinates the binding of the six beta subunits to the enzyme complex.[HAMAP-Rule:MF_00101] [FAS1_YEAST] Fatty acid synthetase catalyzes the formation of long-chain fatty acids from acetyl-CoA, malonyl-CoA and NADPH. The beta subunit contains domains for: [acyl-carrier-protein] acetyltransferase and malonyltransferase, S-acyl fatty acid synthase thioesterase, enoyl-[acyl-carrier-protein] reductase, and 3-hydroxypalmitoyl-[acyl-carrier-protein] dehydratase.
Publication Abstract from PubMed
In yeast, the whole metabolic pathway for making 16- and 18-carbon fatty acids is carried out by fatty acid synthase, a 2.6 megadalton molecular-weight macromolecular assembly containing six copies of all eight catalytic centers. We have determined its crystal structure, which illuminates how this enzyme is initially activated and then carries out multiple steps of synthesis in each of six sterically isolated reaction chambers. Six of the catalytic sites are in the wall of the assembly facing an acyl carrier protein (ACP) bound to the ketoacyl synthase domain. Two-dimensional diffusion of substrates to the catalytic sites may be achieved by the electrostatically negative ACP swinging to each of the six electrostatically positive catalytic sites. The phosphopantetheinyl transferase domain lies outside the shell of the assembly, inaccessible to ACP that lies inside, suggesting that the attachment of the pantetheine arm to ACP must occur before complete assembly of the complex.
The crystal structure of yeast fatty acid synthase, a cellular machine with eight active sites working together.,Lomakin IB, Xiong Y, Steitz TA Cell. 2007 Apr 20;129(2):319-32. PMID:17448991[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Lomakin IB, Xiong Y, Steitz TA. The crystal structure of yeast fatty acid synthase, a cellular machine with eight active sites working together. Cell. 2007 Apr 20;129(2):319-32. PMID:17448991 doi:10.1016/j.cell.2007.03.013
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