2an2: Difference between revisions

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{{Seed}}
[[Image:2an2.png|left|200px]]


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==P332G, A333S Double mutant of the Bacillus subtilis Nitric Oxide Synthase==
The line below this paragraph, containing "STRUCTURE_2an2", creates the "Structure Box" on the page.
<StructureSection load='2an2' size='340' side='right'caption='[[2an2]], [[Resolution|resolution]] 2.60&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'>[[2an2]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_subtilis Bacillus subtilis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AN2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2AN2 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]] 2.6&#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=ARG:ARGININE'>ARG</scene>, <scene name='pdbligand=H4B:5,6,7,8-TETRAHYDROBIOPTERIN'>H4B</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene></td></tr>
{{STRUCTURE_2an2|  PDB=2an2  |  SCENE=  }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2an2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2an2 OCA], [https://pdbe.org/2an2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2an2 RCSB], [https://www.ebi.ac.uk/pdbsum/2an2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2an2 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/NOSO_BACSU NOSO_BACSU] Catalyzes the production of nitric oxide.
== 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/an/2an2_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=2an2 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Cooperativity among ligand binding, subunit association, and protein folding has implications for enzyme regulation as well as protein aggregation events associated with disease. The binding of substrate l-arginine or cofactor tetrahydrobiopterin converts nitric oxide synthases (NOSs) from a "loose dimer", with an exposed active center and higher sensitivity to proteolysis, to a "tight dimer" competent for catalysis. The crystallographic structure of the Bacillus subtilis NOS loose dimer shows an altered association state with severely destabilized subdomains. Ligand binding or heme reduction converts loose dimers to tight dimers in solution and crystals. Mutations at key positions in the dimer interface that distinguish prokaryotic from eukaryotic NOSs affect the propensity to form loose dimers. The loose dimer structure indicates that non-native interactions can mediate subunit association in NOS.


===P332G, A333S Double mutant of the Bacillus subtilis Nitric Oxide Synthase===
Structure of a loose dimer: an intermediate in nitric oxide synthase assembly.,Pant K, Crane BR J Mol Biol. 2005 Sep 30;352(4):932-40. PMID:16126221<ref>PMID:16126221</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2an2" style="background-color:#fffaf0;"></div>


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==See Also==
The line below this paragraph, {{ABSTRACT_PUBMED_16126221}}, adds the Publication Abstract to the page
*[[Nitric Oxide Synthase 3D structures|Nitric Oxide Synthase 3D structures]]
(as it appears on PubMed at http://www.pubmed.gov), where 16126221 is the PubMed ID number.
== References ==
-->
<references/>
{{ABSTRACT_PUBMED_16126221}}
__TOC__
 
</StructureSection>
==About this Structure==
2AN2 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bacillus_subtilis Bacillus subtilis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AN2 OCA].
 
==Reference==
Structure of a loose dimer: an intermediate in nitric oxide synthase assembly., Pant K, Crane BR, J Mol Biol. 2005 Sep 30;352(4):932-40. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16126221 16126221]
[[Category: Bacillus subtilis]]
[[Category: Bacillus subtilis]]
[[Category: Nitric-oxide synthase]]
[[Category: Large Structures]]
[[Category: Single protein]]
[[Category: Crane BR]]
[[Category: Crane, B R.]]
[[Category: Pant K]]
[[Category: Pant, K.]]
[[Category: Double mutant]]
 
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Retrieved from "https://proteopedia.org/2an2"