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{{Seed}}
[[Image:2okf.png|left|200px]]


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==CRYSTAL STRUCTURE OF A FDXN ELEMENT EXCISION CONTROLLING FACTOR PROTEIN (AVA_3312) FROM ANABAENA VARIABILIS AT 1.60 A RESOLUTION==
The line below this paragraph, containing "STRUCTURE_2okf", creates the "Structure Box" on the page.
<StructureSection load='2okf' size='340' side='right'caption='[[2okf]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)  
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[2okf]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Trichormus_variabilis Trichormus variabilis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OKF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2OKF FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</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>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
{{STRUCTURE_2okf|  PDB=2okf  |  SCENE=  }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2okf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2okf OCA], [https://pdbe.org/2okf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2okf RCSB], [https://www.ebi.ac.uk/pdbsum/2okf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2okf ProSAT], [https://www.topsan.org/Proteins/JCSG/2okf TOPSAN]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q3M7W6_TRIV2 Q3M7W6_TRIV2]
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Nitrogen fixation is an important process that converts atmospheric gaseous nitrogen, a form plants cannot utilize, into ammonia that can be easily assimilated. Large serine recombinase XisF (fdxN element site-specific recombinase), together with controlling factors XisH and XisI, plays a critical role in the expression of nitrogen fixation genes of certain Anabaena and Nostoc species of cyanobacteria. All three proteins are required to excise the fdxN DNA element from the chromosome in differentiating heterocysts for the expression of nitrogen fixation related genes. We report the first crystal structures of XisH and XisI proteins, both adopting novel protein folds. Based on the analysis of their sequences and structures, we propose that XisH and XisI proteins function as endonucleases and recombination directionality factors (RDFs), respectively. (c) Proteins 2014;. (c) 2014 Wiley Periodicals, Inc.


===CRYSTAL STRUCTURE OF A FDXN ELEMENT EXCISION CONTROLLING FACTOR PROTEIN (AVA_3312) FROM ANABAENA VARIABILIS AT 1.60 A RESOLUTION===
Site-specific recombination of nitrogen-fixation genes in cyanobacteria by XisF-XisH-XisI complex: Structures and models.,Hwang WC, Golden JW, Pascual J, Xu D, Cheltsov A, Godzik A Proteins. 2014 Sep 1. doi: 10.1002/prot.24679. PMID:25179344<ref>PMID:25179344</ref>


 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
==About this Structure==
</div>
2OKF is a 2 chains structure with sequences from [http://en.wikipedia.org/wiki/Anabaena_variabilis Anabaena variabilis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OKF OCA].
<div class="pdbe-citations 2okf" style="background-color:#fffaf0;"></div>
[[Category: Anabaena variabilis]]
== References ==
[[Category: JCSG, Joint Center for Structural Genomics.]]
<references/>
[[Category: Dna binding protein]]
__TOC__
[[Category: Fdxn element excision controlling factor protein]]
</StructureSection>
[[Category: Jcsg]]
[[Category: Large Structures]]
[[Category: Joint center for structural genomic]]
[[Category: Trichormus variabilis]]
[[Category: Protein structure initiative]]
[[Category: Psi-2]]
[[Category: Structural genomic]]
[[Category: Xish protein]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jul 28 11:47:14 2010''

Latest revision as of 01:16, 21 November 2024

CRYSTAL STRUCTURE OF A FDXN ELEMENT EXCISION CONTROLLING FACTOR PROTEIN (AVA_3312) FROM ANABAENA VARIABILIS AT 1.60 A RESOLUTION

2okf, resolution 1.60Å

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