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[[Image:2an0.gif|left|200px]]


{{Structure
==Crystal Structure of the P332G mutant of the Bacillus subtilis NOS==
|PDB= 2an0 |SIZE=350|CAPTION= <scene name='initialview01'>2an0</scene>, resolution 2.60&Aring;
<StructureSection load='2an0' size='340' side='right'caption='[[2an0]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
|SITE=  
== Structural highlights ==
|LIGAND= <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>
<table><tr><td colspan='2'>[[2an0]] 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=2AN0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2AN0 FirstGlance]. <br>
|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Nitric-oxide_synthase Nitric-oxide synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.14.13.39 1.14.13.39] </span>
</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>
|GENE=  
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene></td></tr>
|DOMAIN=
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2an0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2an0 OCA], [https://pdbe.org/2an0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2an0 RCSB], [https://www.ebi.ac.uk/pdbsum/2an0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2an0 ProSAT]</span></td></tr>
|RELATEDENTRY=[[1m7z|1M7Z]], [[2amo|2AMO]]
</table>
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2an0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2an0 OCA], [http://www.ebi.ac.uk/pdbsum/2an0 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2an0 RCSB]</span>
== 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/2an0_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/main_output.php?pdb_ID=2an0 ConSurf].
<div style="clear:both"></div>


'''Crystal Structure of the P332G mutant of the Bacillus subtilis NOS'''
==See Also==
 
*[[Nitric Oxide Synthase 3D structures|Nitric Oxide Synthase 3D structures]]
 
__TOC__
==Overview==
</StructureSection>
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.
 
==About this Structure==
2AN0 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=2AN0 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: bacillus subtili]]
[[Category: p332g mutant]]
[[Category: prokaryotic nitric oxide synthase]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 01:54:42 2008''

Latest revision as of 12:13, 14 February 2024

Crystal Structure of the P332G mutant of the Bacillus subtilis NOSCrystal Structure of the P332G mutant of the Bacillus subtilis NOS

Structural highlights

2an0 is a 1 chain structure with sequence from Bacillus subtilis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.6Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

NOSO_BACSU Catalyzes the production of nitric oxide.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

2an0, resolution 2.60Å

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