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3k8x

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Revision as of 08:58, 26 December 2018

Crystal structure of the carboxyltransferase domain of acetyl-coenzyme A carboxylase in complex with tepraloxydim

Structural highlights

3k8x is a 3 chain structure with sequence from Atcc 18824. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	1od2, 1od4, 1uyr, 1uys, 1uyt, 1uyv
Gene:	ACC1, ACETYL-COA CARBOXYLASE, FAS3, N3175, YNR016C (ATCC 18824)
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]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Acetyl-CoA carboxylases (ACCs) are crucial metabolic enzymes and are attractive targets for drug discovery. Haloxyfop and tepraloxydim belong to two distinct classes of commercial herbicides and kill sensitive plants by inhibiting the carboxyltransferase (CT) activity of ACC. Our earlier structural studies showed that haloxyfop is bound near the active site of the CT domain, at the interface of its dimer, and a large conformational change in the dimer interface is required for haloxyfop binding. We report here the crystal structure at 2.3 A resolution of the CT domain of yeast ACC in complex with tepraloxydim. The compound has a different mechanism of inhibiting the CT activity compared to haloxyfop, as well as the mammalian ACC inhibitor CP-640186. Tepraloxydim probes a different region of the dimer interface and requires only small but important conformational changes in the enzyme, in contrast to haloxyfop. The binding mode of tepraloxydim explains the structure-activity relationship of these inhibitors, and provides a molecular basis for their distinct sensitivity to some of the resistance mutations, as compared to haloxyfop. Despite the chemical diversity between haloxyfop and tepraloxydim, the compounds do share two binding interactions to the enzyme, which may be important anchoring points for the development of ACC inhibitors.

A different mechanism for the inhibition of the carboxyltransferase domain of acetyl-coenzyme A carboxylase by tepraloxydim.,Xiang S, Callaghan MM, Watson KG, Tong L Proc Natl Acad Sci U S A. 2009 Nov 19. PMID:19926852^[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
↑ Xiang S, Callaghan MM, Watson KG, Tong L. A different mechanism for the inhibition of the carboxyltransferase domain of acetyl-coenzyme A carboxylase by tepraloxydim. Proc Natl Acad Sci U S A. 2009 Nov 19. PMID:19926852

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3k8x"

@@ Line 1: / Line 1: @@
 ==Crystal structure of the carboxyltransferase domain of acetyl-coenzyme A carboxylase in complex with tepraloxydim==
 <StructureSection load='3k8x' size='340' side='right' caption='[[3k8x]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1od2|1od2]], [[1od4|1od4]], [[1uyr|1uyr]], [[1uys|1uys]], [[1uyt|1uyt]], [[1uyv|1uyv]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ACC1, ACETYL-COA CARBOXYLASE, FAS3, N3175, YNR016C ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824])</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=3k8x FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3k8x OCA], [http://pdbe.org/3k8x PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3k8x RCSB], [http://www.ebi.ac.uk/pdbsum/3k8x 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=3k8x FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3k8x OCA], [http://pdbe.org/3k8x PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3k8x RCSB], [http://www.ebi.ac.uk/pdbsum/3k8x PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3k8x ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 14: / Line 15: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/k8/3k8x_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/k8/3k8x_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

3k8x

From Proteopedia

Revision as of 08:58, 26 December 2018

Crystal structure of the carboxyltransferase domain of acetyl-coenzyme A carboxylase in complex with tepraloxydim

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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