6gb9

From Proteopedia

(Difference between revisions)

Current revision

The Structure of variant S328A of the Mo-insertase domain Cnx1E from Arabidopsis thaliana in complex with AMP

Structural highlights

6gb9 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:
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]

Publication Abstract from PubMed

The molybdenum cofactor (Moco) is a redox-active prosthetic group found in the active site of Moco-dependent enzymes, which are vitally important for life. Moco biosynthesis involves several enzymes that catalyze the subsequent conversion of GTP into cyclic pyranopterin monophosphate (cPMP), molybdopterin (MPT), adenylated MPT (MPT-AMP), and finally Moco. While the underlying principles of cPMP, MPT, and MPT-AMP formation are well understood, the molybdenum insertase (Mo-insertase)-catalyzed final Moco maturation step is not. In the present study, we analyzed high-resolution X-ray datasets of the plant Mo-insertase Cnx1E that revealed two molybdate-binding sites within the active site, hence improving the current view on Cnx1E functionality. The presence of molybdate anions in either of these sites is tied to a distinctive backbone conformation, which we suggest to be essential for Mo-insertase molybdate selectivity and insertion efficiency.

The functional principle of eukaryotic molybdenum insertases.,Krausze J, Hercher TW, Zwerschke D, Kirk ML, Blankenfeldt W, Mendel RR, Kruse T Biochem J. 2018 May 24;475(10):1739-1753. doi: 10.1042/BCJ20170935. PMID:29717023^[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
↑ Krausze J, Hercher TW, Zwerschke D, Kirk ML, Blankenfeldt W, Mendel RR, Kruse T. The functional principle of eukaryotic molybdenum insertases. Biochem J. 2018 May 24;475(10):1739-1753. doi: 10.1042/BCJ20170935. PMID:29717023 doi:http://dx.doi.org/10.1042/BCJ20170935

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/6gb9"

@@ Line 1: / Line 1: @@
-'''Unreleased structure'''
-The entry 6gb9 is ON HOLD  until Paper Publication
+==The Structure of variant S328A of the Mo-insertase domain Cnx1E from Arabidopsis thaliana in complex with AMP==
+<StructureSection load='6gb9' size='340' side='right' caption='[[6gb9]], [[Resolution|resolution]] 1.67&Aring;' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>[[6gb9]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6GB9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6GB9 FirstGlance]. <br>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=AMP:ADENOSINE+MONOPHOSPHATE'>AMP</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
+<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=CSX:S-OXY+CYSTEINE'>CSX</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=6gb9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6gb9 OCA], [http://pdbe.org/6gb9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6gb9 RCSB], [http://www.ebi.ac.uk/pdbsum/6gb9 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6gb9 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>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+The molybdenum cofactor (Moco) is a redox-active prosthetic group found in the active site of Moco-dependent enzymes, which are vitally important for life. Moco biosynthesis involves several enzymes that catalyze the subsequent conversion of GTP into cyclic pyranopterin monophosphate (cPMP), molybdopterin (MPT), adenylated MPT (MPT-AMP), and finally Moco. While the underlying principles of cPMP, MPT, and MPT-AMP formation are well understood, the molybdenum insertase (Mo-insertase)-catalyzed final Moco maturation step is not. In the present study, we analyzed high-resolution X-ray datasets of the plant Mo-insertase Cnx1E that revealed two molybdate-binding sites within the active site, hence improving the current view on Cnx1E functionality. The presence of molybdate anions in either of these sites is tied to a distinctive backbone conformation, which we suggest to be essential for Mo-insertase molybdate selectivity and insertion efficiency.
-Authors: Krausze, J.
+The functional principle of eukaryotic molybdenum insertases.,Krausze J, Hercher TW, Zwerschke D, Kirk ML, Blankenfeldt W, Mendel RR, Kruse T Biochem J. 2018 May 24;475(10):1739-1753. doi: 10.1042/BCJ20170935. PMID:29717023<ref>PMID:29717023</ref>
-Description: The Structure of variant S328A of the Mo-insertase domain Cnx1E from Arabidopsis thaliana in complex with AMP
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-[[Category: Unreleased Structures]]
+</div>
+<div class="pdbe-citations 6gb9" style="background-color:#fffaf0;"></div>
+== References ==
+<references/>
+__TOC__
+</StructureSection>
 [[Category: Krausze, J]]
+[[Category: Adenosine monophosphate]]
+[[Category: Arabidopsis]]
+[[Category: Arabidopsis protein]]
+[[Category: Catalytic domain]]
+[[Category: Coenzyme]]
+[[Category: Entropic enzyme]]
+[[Category: Metalloprotein]]
+[[Category: Nucleotide binding]]
+[[Category: Transferase]]

6gb9

From Proteopedia

Current revision

The Structure of variant S328A of the Mo-insertase domain Cnx1E from Arabidopsis thaliana in complex with AMP

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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