4djf

From Proteopedia

(Difference between revisions)

Revision as of 08:28, 4 August 2016

Crystal structure of folate-bound corrinoid iron-sulfur protein (CFeSP) in complex with its methyltransferase (MeTr), co-crystallized with folate and Ti(III) citrate reductant

Structural highlights

4djf is a 6 chain structure with sequence from Atcc 35608 and Moorella thermoacetica. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , ,
Related:	4djd
Gene:	acsE (ATCC 35608)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[ACSE_MOOTH] Methyltransferase that mediates the transfer of a N5-methyl group of (6S)-methyltetrahydrofolate to the 5-methoxybenzimidazolylcobamide cofactor of a corrinoid/Fe-S protein in the anaerobic acetyl-CoA pathway (Wood-Ljungdahl pathway) of carbon monoxide and carbon dioxide fixation.^[1] ^[2] ^[3] [ACSD_MOOTH] Acts as a methyl group carrier in the anaerobic acetyl-CoA pathway (Wood-Ljungdahl pathway) of carbon monoxide and carbon dioxide fixation.^[4] ^[5] ^[6] [ACSC_MOOTH] Acts as a methyl group carrier in the anaerobic acetyl-CoA pathway (Wood-Ljungdahl pathway) of carbon monoxide and carbon dioxide fixation.^[7] ^[8] ^[9]

Publication Abstract from PubMed

Derivatives of vitamin B(12) are used in methyl group transfer in biological processes as diverse as methionine synthesis in humans and CO(2) fixation in acetogenic bacteria. This seemingly straightforward reaction requires large, multimodular enzyme complexes that adopt multiple conformations to alternately activate, protect and perform catalysis on the reactive B(12) cofactor. Crystal structures determined thus far have provided structural information for only fragments of these complexes, inspiring speculation about the overall protein assembly and conformational movements inherent to activity. Here we present X-ray crystal structures of a complete 220 kDa complex that contains all enzymes responsible for B(12)-dependent methyl transfer, namely the corrinoid iron-sulphur protein and its methyltransferase from the model acetogen Moorella thermoacetica. These structures provide the first three-dimensional depiction of all protein modules required for the activation, protection and catalytic steps of B(12)-dependent methyl transfer. In addition, the structures capture B(12) at multiple locations between its 'resting' and catalytic positions, allowing visualization of the dramatic protein rearrangements that enable methyl transfer and identification of the trajectory for B(12) movement within the large enzyme scaffold. The structures are also presented alongside in crystallo spectroscopic data, which confirm enzymatic activity within crystals and demonstrate the largest known conformational movements of proteins in a crystalline state. Taken together, this work provides a model for the molecular juggling that accompanies turnover and helps explain why such an elaborate protein framework is required for such a simple, yet biologically essential reaction.

Visualizing molecular juggling within a B(12)-dependent methyltransferase complex.,Kung Y, Ando N, Doukov TI, Blasiak LC, Bender G, Seravalli J, Ragsdale SW, Drennan CL Nature. 2012 Mar 14. doi: 10.1038/nature10916. PMID:22419154^[10]

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

References

↑ Doukov TI, Hemmi H, Drennan CL, Ragsdale SW. Structural and kinetic evidence for an extended hydrogen-bonding network in catalysis of methyl group transfer. Role of an active site asparagine residue in activation of methyl transfer by methyltransferases. J Biol Chem. 2007 Mar 2;282(9):6609-18. Epub 2006 Dec 15. PMID:17172470 doi:http://dx.doi.org/10.1074/jbc.M609828200
↑ Kung Y, Ando N, Doukov TI, Blasiak LC, Bender G, Seravalli J, Ragsdale SW, Drennan CL. Visualizing molecular juggling within a B(12)-dependent methyltransferase complex. Nature. 2012 Mar 14. doi: 10.1038/nature10916. PMID:22419154 doi:10.1038/nature10916
↑ Roberts DL, Zhao S, Doukov T, Ragsdale SW. The reductive acetyl coenzyme A pathway: sequence and heterologous expression of active methyltetrahydrofolate:corrinoid/iron-sulfur protein methyltransferase from Clostridium thermoaceticum. J Bacteriol. 1994 Oct;176(19):6127-30. PMID:7928975
↑ Kung Y, Ando N, Doukov TI, Blasiak LC, Bender G, Seravalli J, Ragsdale SW, Drennan CL. Visualizing molecular juggling within a B(12)-dependent methyltransferase complex. Nature. 2012 Mar 14. doi: 10.1038/nature10916. PMID:22419154 doi:10.1038/nature10916
↑ Roberts DL, James-Hagstrom JE, Garvin DK, Gorst CM, Runquist JA, Baur JR, Haase FC, Ragsdale SW. Cloning and expression of the gene cluster encoding key proteins involved in acetyl-CoA synthesis in Clostridium thermoaceticum: CO dehydrogenase, the corrinoid/Fe-S protein, and methyltransferase. Proc Natl Acad Sci U S A. 1989 Jan;86(1):32-6. PMID:2911576
↑ Lu WP, Schiau I, Cunningham JR, Ragsdale SW. Sequence and expression of the gene encoding the corrinoid/iron-sulfur protein from Clostridium thermoaceticum and reconstitution of the recombinant protein to full activity. J Biol Chem. 1993 Mar 15;268(8):5605-14. PMID:8449924
↑ Kung Y, Ando N, Doukov TI, Blasiak LC, Bender G, Seravalli J, Ragsdale SW, Drennan CL. Visualizing molecular juggling within a B(12)-dependent methyltransferase complex. Nature. 2012 Mar 14. doi: 10.1038/nature10916. PMID:22419154 doi:10.1038/nature10916
↑ Roberts DL, James-Hagstrom JE, Garvin DK, Gorst CM, Runquist JA, Baur JR, Haase FC, Ragsdale SW. Cloning and expression of the gene cluster encoding key proteins involved in acetyl-CoA synthesis in Clostridium thermoaceticum: CO dehydrogenase, the corrinoid/Fe-S protein, and methyltransferase. Proc Natl Acad Sci U S A. 1989 Jan;86(1):32-6. PMID:2911576
↑ Lu WP, Schiau I, Cunningham JR, Ragsdale SW. Sequence and expression of the gene encoding the corrinoid/iron-sulfur protein from Clostridium thermoaceticum and reconstitution of the recombinant protein to full activity. J Biol Chem. 1993 Mar 15;268(8):5605-14. PMID:8449924
↑ Kung Y, Ando N, Doukov TI, Blasiak LC, Bender G, Seravalli J, Ragsdale SW, Drennan CL. Visualizing molecular juggling within a B(12)-dependent methyltransferase complex. Nature. 2012 Mar 14. doi: 10.1038/nature10916. PMID:22419154 doi:10.1038/nature10916

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4djf"

@@ Line 1: / Line 1: @@
 ==Crystal structure of folate-bound corrinoid iron-sulfur protein (CFeSP) in complex with its methyltransferase (MeTr), co-crystallized with folate and Ti(III) citrate reductant==
 <StructureSection load='4djf' size='340' side='right' caption='[[4djf]], [[Resolution|resolution]] 3.03&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[4djf]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Moorella_thermoacetica Moorella thermoacetica]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4DJF OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4DJF FirstGlance]. <br>
+<table><tr><td colspan='2'>[[4djf]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_35608 Atcc 35608] and [http://en.wikipedia.org/wiki/Moorella_thermoacetica Moorella thermoacetica]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4DJF OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4DJF FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=C2F:5-METHYL-5,6,7,8-TETRAHYDROFOLIC+ACID'>C2F</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=COB:CO-METHYLCOBALAMIN'>COB</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4djd|4djd]]</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">acsE ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1525 Moorella thermoacetica])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">acsE ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1525 ATCC 35608])</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=4djf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4djf OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4djf RCSB], [http://www.ebi.ac.uk/pdbsum/4djf 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=4djf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4djf OCA], [http://pdbe.org/4djf PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4djf RCSB], [http://www.ebi.ac.uk/pdbsum/4djf PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4djf ProSAT]</span></td></tr>
 </table>
+== Function ==
+[[http://www.uniprot.org/uniprot/ACSE_MOOTH ACSE_MOOTH]] Methyltransferase that mediates the transfer of a N5-methyl group of (6S)-methyltetrahydrofolate to the 5-methoxybenzimidazolylcobamide cofactor of a corrinoid/Fe-S protein in the anaerobic acetyl-CoA pathway (Wood-Ljungdahl pathway) of carbon monoxide and carbon dioxide fixation.<ref>PMID:17172470</ref> <ref>PMID:22419154</ref> <ref>PMID:7928975</ref>  [[http://www.uniprot.org/uniprot/ACSD_MOOTH ACSD_MOOTH]] Acts as a methyl group carrier in the anaerobic acetyl-CoA pathway (Wood-Ljungdahl pathway) of carbon monoxide and carbon dioxide fixation.<ref>PMID:22419154</ref> <ref>PMID:2911576</ref> <ref>PMID:8449924</ref>  [[http://www.uniprot.org/uniprot/ACSC_MOOTH ACSC_MOOTH]] Acts as a methyl group carrier in the anaerobic acetyl-CoA pathway (Wood-Ljungdahl pathway) of carbon monoxide and carbon dioxide fixation.<ref>PMID:22419154</ref> <ref>PMID:2911576</ref> <ref>PMID:8449924</ref>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 16: / Line 19: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4djf" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 23: / Line 27: @@
 __TOC__
 </StructureSection>
+[[Category: Atcc 35608]]
 [[Category: Moorella thermoacetica]]
 [[Category: Drennan, C L]]

4djf

From Proteopedia

Revision as of 08:28, 4 August 2016

Crystal structure of folate-bound corrinoid iron-sulfur protein (CFeSP) in complex with its methyltransferase (MeTr), co-crystallized with folate and Ti(III) citrate reductant

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox