2fd2: Difference between revisions

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{{Seed}}
[[Image:2fd2.png|left|200px]]


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==CRYSTALLOGRAPHIC ANALYSIS OF TWO SITE-DIRECTED MUTANTS OF AZOTOBACTER VINELANDII FERREDOXIN==
The line below this paragraph, containing "STRUCTURE_2fd2", creates the "Structure Box" on the page.
<StructureSection load='2fd2' size='340' side='right'caption='[[2fd2]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[2fd2]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Azotobacter_vinelandii Azotobacter vinelandii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2FD2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2FD2 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]] 1.9&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2fd2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2fd2 OCA], [https://pdbe.org/2fd2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2fd2 RCSB], [https://www.ebi.ac.uk/pdbsum/2fd2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2fd2 ProSAT]</span></td></tr>
{{STRUCTURE_2fd2|  PDB=2fd2  |  SCENE=  }}
</table>
== Function ==
[https://www.uniprot.org/uniprot/FER1_AZOVI FER1_AZOVI] Ferredoxins are iron-sulfur proteins that transfer electrons in a wide variety of metabolic reactions. This ferredoxin could play a role in regulating gene expression by interacting directly with DNA.
== 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/fd/2fd2_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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/main_output.php?pdb_ID=2fd2 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The crystal structure of the C24A mutant of Azotobacter vinelandii 7Fe ferredoxin (FdI) has been solved and refined at 2.0-A resolution. The structure is isomorphous to native FdI except at the site of mutation where A24 moves toward the [4Fe-4S] cluster. In spite of this inefficient packing results: three of five van der Waals contacts from the S gamma of C24 in native FdI are lost and the remaining two become longer. Consequently, the [4Fe-4S] cluster is either disordered or has a higher temperature factor (B factor) compared to the rest of the C24A FdI molecule. In addition, the entire C24A FdI structure has a higher overall B factor than native FdI. Therefore, in comparison to native FdI, the C24A mutant is isomorphous but exhibits large differences in B factor, especially at the [4Fe-4S] cluster. In contrast, the C20A FdI structure (Martin, A. G., Burgess, B. K., Stout, C. D., Cash, V. L., Dean, D. R., Jensen, G. M., and Stephens, P. J. (1990) Proc. Natl. Acad. Sci. U. S. A. 87, 598-602), which contains large structural rearrangements in the vicinity of the [4Fe-4S] cluster, exhibits essentially no change in B factor. The conformational change observed at residue 24 is similar in both C24A and C20A FdI structures. The solvent accessibility of the Fe atoms in the [3Fe-4S] and [4Fe-4S] clusters is similar in C24A, C20A, and native FdI.


===CRYSTALLOGRAPHIC ANALYSIS OF TWO SITE-DIRECTED MUTANTS OF AZOTOBACTER VINELANDII FERREDOXIN===
Crystallographic analysis of two site-directed mutants of Azotobacter vinelandii ferredoxin.,Soman J, Iismaa S, Stout CD J Biol Chem. 1991 Nov 15;266(32):21558-62. PMID:1939185<ref>PMID:1939185</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2fd2" style="background-color:#fffaf0;"></div>


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==See Also==
The line below this paragraph, {{ABSTRACT_PUBMED_1939185}}, adds the Publication Abstract to the page
*[[Ferredoxin 3D structures|Ferredoxin 3D structures]]
(as it appears on PubMed at http://www.pubmed.gov), where 1939185 is the PubMed ID number.
== References ==
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<references/>
{{ABSTRACT_PUBMED_1939185}}
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</StructureSection>
==About this Structure==
2FD2 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Azotobacter_vinelandii Azotobacter vinelandii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2FD2 OCA].
 
==Reference==
Crystallographic analysis of two site-directed mutants of Azotobacter vinelandii ferredoxin., Soman J, Iismaa S, Stout CD, J Biol Chem. 1991 Nov 15;266(32):21558-62. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/1939185 1939185]
[[Category: Azotobacter vinelandii]]
[[Category: Azotobacter vinelandii]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Pdbx_ordinal=, <PDBx:audit_author.]]
[[Category: Stout CD]]
 
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