1uux

From Proteopedia

(Difference between revisions)

Current revision

Structure of a molybdopterin-bound cnx1g domain links molybdenum and copper metabolism

Structural highlights

1uux is a 1 chain structure with sequence from Arabidopsis thaliana. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 1.6Å
Ligands:	, , , ,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

CNX1_ARATH Catalyzes two steps in the biosynthesis of the molybdenum cofactor. In the first step, molybdopterin is adenylated. Subsequently, molybdate is inserted into adenylated molybdopterin and AMP is released.^[1] ^[2] ^[3] ^[4]

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

The molybdenum cofactor is part of the active site of all molybdenum-dependent enzymes, except nitrogenase. The molybdenum cofactor consists of molybdopterin, a phosphorylated pyranopterin, with an ene-dithiolate coordinating molybdenum. The same pyranopterin-based cofactor is involved in metal coordination of the homologous tungsten-containing enzymes found in archea. The molybdenum cofactor is synthesized by a highly conserved biosynthetic pathway. In plants, the multidomain protein Cnx1 catalyses the insertion of molybdenum into molybdopterin. The Cnx1 G domain (Cnx1G), whose crystal structure has been determined in its apo form, binds molybdopterin with high affinity and participates in the catalysis of molybdenum insertion. Here we present two high-resolution crystal structures of Cnx1G in complex with molybdopterin and with adenylated molybdopterin (molybdopterin-AMP), a mechanistically important intermediate. Molybdopterin-AMP is the reaction product of Cnx1G and is subsequently processed in a magnesium-dependent reaction by the amino-terminal E domain of Cnx1 to yield active molybdenum cofactor. The unexpected identification of copper bound to the molybdopterin dithiolate sulphurs in both structures, coupled with the observed copper inhibition of Cnx1G activity, provides a molecular link between molybdenum and copper metabolism.

Structure of the molybdopterin-bound Cnx1G domain links molybdenum and copper metabolism.,Kuper J, Llamas A, Hecht HJ, Mendel RR, Schwarz G Nature. 2004 Aug 12;430(7001):803-6. PMID:15306815^[5]

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

References

↑ Llamas A, Mendel RR, Schwarz G. Synthesis of adenylated molybdopterin: an essential step for molybdenum insertion. J Biol Chem. 2004 Dec 31;279(53):55241-6. Epub 2004 Oct 25. PMID:15504727 doi:http://dx.doi.org/10.1074/jbc.M409862200
↑ Llamas A, Otte T, Multhaup G, Mendel RR, Schwarz G. The Mechanism of nucleotide-assisted molybdenum insertion into molybdopterin. A novel route toward metal cofactor assembly. J Biol Chem. 2006 Jul 7;281(27):18343-50. Epub 2006 Apr 24. PMID:16636046 doi:http://dx.doi.org/10.1074/jbc.M601415200
↑ Kuper J, Winking J, Hecht HJ, Mendel RR, Schwarz G. The active site of the molybdenum cofactor biosynthetic protein domain Cnx1G. Arch Biochem Biophys. 2003 Mar 1;411(1):36-46. PMID:12590921
↑ Kuper J, Llamas A, Hecht HJ, Mendel RR, Schwarz G. Structure of the molybdopterin-bound Cnx1G domain links molybdenum and copper metabolism. Nature. 2004 Aug 12;430(7001):803-6. PMID:15306815 doi:10.1038/nature02681
↑ Kuper J, Llamas A, Hecht HJ, Mendel RR, Schwarz G. Structure of the molybdopterin-bound Cnx1G domain links molybdenum and copper metabolism. Nature. 2004 Aug 12;430(7001):803-6. PMID:15306815 doi:10.1038/nature02681

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1uux"

@@ Line 1: / Line 1: @@
-==STRUCTURE OF A MOLYBDOPTERIN-BOUND CNX1G DOMAIN LINKS MOLYBDENUM AND COPPER METABOLISM==
-<StructureSection load='1uux' size='340' side='right' caption='[[1uux]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
+==Structure of a molybdopterin-bound cnx1g domain links molybdenum and copper metabolism==
+<StructureSection load='1uux' size='340' side='right'caption='[[1uux]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1uux]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Arath Arath]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UUX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1UUX FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1uux]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UUX OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1UUX FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CU1:COPPER+(I)+ION'>CU1</scene>, <scene name='pdbligand=FMT:FORMIC+ACID'>FMT</scene>, <scene name='pdbligand=IMD:IMIDAZOLE'>IMD</scene>, <scene name='pdbligand=MTE:PHOSPHONIC+ACIDMONO-(2-AMINO-5,6-DIMERCAPTO-4-OXO-3,7,8A,9,10,10A-HEXAHYDRO-4H-8-OXA-1,3,9,10-TETRAAZA-ANTHRACEN-7-YLMETHYL)ESTER'>MTE</scene>, <scene name='pdbligand=PPI:PROPANOIC+ACID'>PPI</scene></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.6&#8491;</td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1eav|1eav]], [[1o8n|1o8n]], [[1o8o|1o8o]], [[1o8q|1o8q]], [[1uuy|1uuy]]</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CU1:COPPER+(I)+ION'>CU1</scene>, <scene name='pdbligand=FMT:FORMIC+ACID'>FMT</scene>, <scene name='pdbligand=IMD:IMIDAZOLE'>IMD</scene>, <scene name='pdbligand=MTE:PHOSPHONIC+ACIDMONO-(2-AMINO-5,6-DIMERCAPTO-4-OXO-3,7,8A,9,10,10A-HEXAHYDRO-4H-8-OXA-1,3,9,10-TETRAAZA-ANTHRACEN-7-YLMETHYL)ESTER'>MTE</scene>, <scene name='pdbligand=PPI:PROPANOIC+ACID'>PPI</scene></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=1uux FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1uux OCA], [http://pdbe.org/1uux PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1uux RCSB], [http://www.ebi.ac.uk/pdbsum/1uux PDBsum]</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=1uux FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1uux OCA], [https://pdbe.org/1uux PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1uux RCSB], [https://www.ebi.ac.uk/pdbsum/1uux PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1uux ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/CNX1_ARATH CNX1_ARATH]] Catalyzes two steps in the biosynthesis of the molybdenum cofactor. In the first step, molybdopterin is adenylated. Subsequently, molybdate is inserted into adenylated molybdopterin and AMP is released.<ref>PMID:15504727</ref> <ref>PMID:16636046</ref> <ref>PMID:12590921</ref> <ref>PMID:15306815</ref>
+[https://www.uniprot.org/uniprot/CNX1_ARATH CNX1_ARATH] Catalyzes two steps in the biosynthesis of the molybdenum cofactor. In the first step, molybdopterin is adenylated. Subsequently, molybdate is inserted into adenylated molybdopterin and AMP is released.<ref>PMID:15504727</ref> <ref>PMID:16636046</ref> <ref>PMID:12590921</ref> <ref>PMID:15306815</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/uu/1uux_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/uu/1uux_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
-</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
+</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1uux ConSurf].
 <div style="clear:both"></div>
 <div style="background-color:#fffaf0;">
@@ Line 32: / Line 33: @@
 __TOC__
 </StructureSection>
-[[Category: Arath]]
+[[Category: Arabidopsis thaliana]]
-[[Category: Hecht, H J]]
+[[Category: Large Structures]]
-[[Category: Kuper, J]]
+[[Category: Hecht HJ]]
-[[Category: Llamas, A]]
+[[Category: Kuper J]]
-[[Category: Mendel, R R]]
+[[Category: Llamas A]]
-[[Category: Schwarz, G]]
+[[Category: Mendel RR]]
-[[Category: Chelatase]]
+[[Category: Schwarz G]]
-[[Category: Molybdenum cofactor biosynthesis]]

1uux

From Proteopedia

Current revision

Structure of a molybdopterin-bound cnx1g domain links molybdenum and copper metabolism

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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