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2gpw

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Revision as of 07:12, 20 June 2018

Crystal Structure of the Biotin Carboxylase Subunit, F363A Mutant, of Acetyl-CoA Carboxylase from Escherichia coli.

Structural highlights

2gpw is a 4 chain structure with sequence from "bacillus_coli"_migula_1895 "bacillus coli" migula 1895. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	1w93, 1w96, 1dv1, 1dv2, 1bnc
Gene:	accC ("Bacillus coli" Migula 1895)
Activity:	Biotin carboxylase, with EC number 6.3.4.14
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[ACCC_ECOLI] This protein is a component of the acetyl coenzyme A carboxylase complex; first, biotin carboxylase catalyzes the carboxylation of the carrier protein and then the transcarboxylase transfers the carboxyl group to form malonyl-CoA.

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-coenzyme A carboxylases (ACCs) have crucial roles in fatty acid metabolism. The biotin carboxylase (BC) subunit of Escherichia coli ACC is believed to be active only as a dimer, although the crystal structure shows that the active site of each monomer is 25 A from the dimer interface. We report here biochemical, biophysical, and structural characterizations of BC carrying single-site mutations in the dimer interface. Our studies demonstrate that two of the mutants, R19E and E23R, are monomeric in solution but have only a 3-fold loss in catalytic activity. The crystal structures of the E23R and F363A mutants show that they can still form the correct dimer at high concentrations. Our data suggest that dimerization is not an absolute requirement for the catalytic activity of the E. coli BC subunit, and we propose a new model for the molecular mechanism of action for BC in multisubunit and multidomain ACCs.

Is dimerization required for the catalytic activity of bacterial biotin carboxylase?,Shen Y, Chou CY, Chang GG, Tong L Mol Cell. 2006 Jun 23;22(6):807-18. PMID:16793549^[1]

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

References

↑ Shen Y, Chou CY, Chang GG, Tong L. Is dimerization required for the catalytic activity of bacterial biotin carboxylase? Mol Cell. 2006 Jun 23;22(6):807-18. PMID:16793549 doi:10.1016/j.molcel.2006.04.026

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/2gpw"

@@ Line 1: / Line 1: @@
 ==Crystal Structure of the Biotin Carboxylase Subunit, F363A Mutant, of Acetyl-CoA Carboxylase from Escherichia coli.==
 <StructureSection load='2gpw' size='340' side='right' caption='[[2gpw]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">accC ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 "Bacillus coli" Migula 1895])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Biotin_carboxylase Biotin carboxylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.3.4.14 6.3.4.14] </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=2gpw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2gpw OCA], [http://pdbe.org/2gpw PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2gpw RCSB], [http://www.ebi.ac.uk/pdbsum/2gpw 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=2gpw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2gpw OCA], [http://pdbe.org/2gpw PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2gpw RCSB], [http://www.ebi.ac.uk/pdbsum/2gpw PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2gpw 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/gp/2gpw_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/gp/2gpw_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

2gpw

From Proteopedia

Revision as of 07:12, 20 June 2018

Crystal Structure of the Biotin Carboxylase Subunit, F363A Mutant, of Acetyl-CoA Carboxylase from Escherichia coli.

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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