1f20

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[[Image:1f20.gif|left|200px]]
 
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==CRYSTAL STRUCTURE OF RAT NEURONAL NITRIC-OXIDE SYNTHASE FAD/NADP+ DOMAIN AT 1.9A RESOLUTION.==
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The line below this paragraph, containing "STRUCTURE_1f20", creates the "Structure Box" on the page.
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<StructureSection load='1f20' size='340' side='right'caption='[[1f20]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1f20]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1F20 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1F20 FirstGlance]. <br>
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</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='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=FMT:FORMIC+ACID'>FMT</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NAP:NADP+NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NAP</scene></td></tr>
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{{STRUCTURE_1f20| PDB=1f20 | SCENE= }}
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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=1f20 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1f20 OCA], [https://pdbe.org/1f20 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1f20 RCSB], [https://www.ebi.ac.uk/pdbsum/1f20 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1f20 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/NOS1_RAT NOS1_RAT] Produces nitric oxide (NO) which is a messenger molecule with diverse functions throughout the body. In the brain and peripheral nervous system, NO displays many properties of a neurotransmitter. Inhibitory transmitter for non-adrenergic and non-cholinergic nerves in the colorectum. Probably has nitrosylase activity and mediates cysteine S-nitrosylation of cytoplasmic target proteins such SRR. Inhibitory transmitter for non-adrenergic and non-cholinergic nerves in the colorectum.
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/f2/1f20_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=1f20 ConSurf].
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<div style="clear:both"></div>
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'''CRYSTAL STRUCTURE OF RAT NEURONAL NITRIC-OXIDE SYNTHASE FAD/NADP+ DOMAIN AT 1.9A RESOLUTION.'''
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==See Also==
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*[[Nitric Oxide Synthase 3D structures|Nitric Oxide Synthase 3D structures]]
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__TOC__
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==Overview==
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</StructureSection>
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Nitric-oxide synthase (NOS) is composed of a C-terminal, flavin-containing reductase domain and an N-terminal, heme-containing oxidase domain. The reductase domain, similar to NADPH-cytochrome P450 reductase, can be further divided into two different flavin-containing domains: (a) the N terminus, FMN-containing portion, and (b) the C terminus FAD- and NADPH-binding portion. The crystal structure of the FAD/NADPH-containing domain of rat neuronal nitric-oxide synthase, complexed with NADP(+), has been determined at 1.9 A resolution. The protein is fully capable of reducing ferricyanide, using NADPH as the electron donor. The overall polypeptide fold of the domain is very similar to that of the corresponding module of NADPH-cytochrome P450 oxidoreductase (CYPOR) and consists of three structural subdomains (from N to C termini): (a) the connecting domain, (b) the FAD-binding domain, and (c) the NADPH-binding domain. A comparison of the structure of the neuronal NOS FAD/NADPH domain and CYPOR reveals the strict conservation of the flavin-binding site, including the tightly bound water molecules, the mode of NADP(+) binding, and the aromatic residue that lies at the re-face of the flavin ring, strongly suggesting that the hydride transfer mechanisms in the two enzymes are very similar. In contrast, the putative FMN domain-binding surface of the NOS protein is less positively charged than that of its CYPOR counterpart, indicating a different nature of interactions between the two flavin domains and a different mode of regulation in electron transfer between the two flavins involving the autoinhibitory element and the C-terminal 33 residues, both of which are absent in CYPOR.
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[[Category: Large Structures]]
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==About this Structure==
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1F20 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1F20 OCA].
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==Reference==
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Crystal structure of the FAD/NADPH-binding domain of rat neuronal nitric-oxide synthase. Comparisons with NADPH-cytochrome P450 oxidoreductase., Zhang J, Martasek P, Paschke R, Shea T, Siler Masters BS, Kim JJ, J Biol Chem. 2001 Oct 5;276(40):37506-13. Epub 2001 Jul 25. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11473123 11473123]
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[[Category: Nitric-oxide synthase]]
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[[Category: Rattus norvegicus]]
[[Category: Rattus norvegicus]]
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[[Category: Single protein]]
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[[Category: Kim JP]]
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[[Category: Kim, J P.]]
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[[Category: Martasek P]]
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[[Category: Martasek, P.]]
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[[Category: Masters BS]]
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[[Category: Masters, B S.]]
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[[Category: Zhang J]]
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[[Category: Zhang, J.]]
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[[Category: Fad]]
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[[Category: Nadp+]]
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[[Category: Nitric-xoide synthase]]
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[[Category: Reductase domain]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 15:47:28 2008''
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Current revision

CRYSTAL STRUCTURE OF RAT NEURONAL NITRIC-OXIDE SYNTHASE FAD/NADP+ DOMAIN AT 1.9A RESOLUTION.

PDB ID 1f20

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