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5i6e

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Revision as of 09:01, 3 October 2016

Crystal structure of the central domain of yeast acetyl-CoA carboxylase

Structural highlights

5i6e is a 1 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
NonStd Res:
Related:	5i6f, 5i6g, 5i6h, 5i6i, 5i87
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[ACAC_YEAST] Carries out three functions: biotin carboxyl carrier protein, biotin carboxylase and carboxyltransferase. Involved in the synthesis of very-long-chain fatty acid synthesis which is required to maintain a functional nuclear envelope. Required for acylation and vacuolar membrane association of VAC8 which is necessary to maintain a normal morphology of the vacuole.^[1] ^[2] ^[3] ^[4] ^[5]

Publication Abstract from PubMed

Acetyl-CoA carboxylases (ACCs) catalyse the committed step in fatty-acid biosynthesis: the ATP-dependent carboxylation of acetyl-CoA to malonyl-CoA. They are important regulatory hubs for metabolic control and relevant drug targets for the treatment of the metabolic syndrome and cancer. Eukaryotic ACCs are single-chain multienzymes characterized by a large, non-catalytic central domain (CD), whose role in ACC regulation remains poorly characterized. Here we report the crystal structure of the yeast ACC CD, revealing a unique four-domain organization. A regulatory loop, which is phosphorylated at the key functional phosphorylation site of fungal ACC, wedges into a crevice between two domains of CD. Combining the yeast CD structure with intermediate and low-resolution data of larger fragments up to intact ACCs provides a comprehensive characterization of the dynamic fungal ACC architecture. In contrast to related carboxylases, large-scale conformational changes are required for substrate turnover, and are mediated by the CD under phosphorylation control.

The dynamic organization of fungal acetyl-CoA carboxylase.,Hunkeler M, Stuttfeld E, Hagmann A, Imseng S, Maier T Nat Commun. 2016 Apr 13;7:11196. doi: 10.1038/ncomms11196. PMID:27073141^[6]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Mishina M, Roggenkamp R, Schweizer E. Yeast mutants defective in acetyl-coenzyme A carboxylase and biotin: apocarboxylase ligase. Eur J Biochem. 1980 Oct;111(1):79-87. PMID:6108218
↑ Roggenkamp R, Numa S, Schweizer E. Fatty acid-requiring mutant of Saccharomyces cerevisiae defective in acetyl-CoA carboxylase. Proc Natl Acad Sci U S A. 1980 Apr;77(4):1814-7. PMID:6103540
↑ Schneiter R, Hitomi M, Ivessa AS, Fasch EV, Kohlwein SD, Tartakoff AM. A yeast acetyl coenzyme A carboxylase mutant links very-long-chain fatty acid synthesis to the structure and function of the nuclear membrane-pore complex. Mol Cell Biol. 1996 Dec;16(12):7161-72. PMID:8943372
↑ Schneiter R, Guerra CE, Lampl M, Tatzer V, Zellnig G, Klein HL, Kohlwein SD. A novel cold-sensitive allele of the rate-limiting enzyme of fatty acid synthesis, acetyl coenzyme A carboxylase, affects the morphology of the yeast vacuole through acylation of Vac8p. Mol Cell Biol. 2000 May;20(9):2984-95. PMID:10757783
↑ Gao H, Sumanaweera N, Bailer SM, Stochaj U. Nuclear accumulation of the small GTPase Gsp1p depends on nucleoporins Nup133p, Rat2p/Nup120p, Nup85p, Nic96p, and the acetyl-CoA carboxylase Acc1p. J Biol Chem. 2003 Jul 11;278(28):25331-40. Epub 2003 May 1. PMID:12730220 doi:http://dx.doi.org/10.1074/jbc.M301607200
↑ Hunkeler M, Stuttfeld E, Hagmann A, Imseng S, Maier T. The dynamic organization of fungal acetyl-CoA carboxylase. Nat Commun. 2016 Apr 13;7:11196. doi: 10.1038/ncomms11196. PMID:27073141 doi:http://dx.doi.org/10.1038/ncomms11196

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5i6e"

@@ Line 7: / Line 7: @@
 <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=SEP:PHOSPHOSERINE'>SEP</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5i6f|5i6f]], [[5i6g|5i6g]], [[5i6h|5i6h]], [[5i6i|5i6i]], [[5i87|5i87]]</td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5i6e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5i6e OCA], [http://pdbe.org/5i6e PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5i6e RCSB], [http://www.ebi.ac.uk/pdbsum/5i6e PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5i6e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5i6e OCA], [http://pdbe.org/5i6e PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5i6e RCSB], [http://www.ebi.ac.uk/pdbsum/5i6e PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5i6e ProSAT]</span></td></tr>
 </table>
 == Function ==

5i6e

From Proteopedia

Revision as of 09:01, 3 October 2016

Crystal structure of the central domain of yeast acetyl-CoA carboxylase

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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