1e06: Difference between revisions

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== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1e06]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1E06 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1E06 FirstGlance]. <br>
<table><tr><td colspan='2'>[[1e06]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1E06 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1E06 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=IPB:5-METHYL-2-(1-METHYLETHYL)PHENOL'>IPB</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.12&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1a3y|1a3y]], [[1dzj|1dzj]], [[1dzm|1dzm]], [[1dzk|1dzk]], [[1dzp|1dzp]], [[1e02|1e02]], [[1e00|1e00]]</div></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=IPB:5-METHYL-2-(1-METHYLETHYL)PHENOL'>IPB</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1e06 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1e06 OCA], [https://pdbe.org/1e06 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1e06 RCSB], [https://www.ebi.ac.uk/pdbsum/1e06 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1e06 ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1e06 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1e06 OCA], [https://pdbe.org/1e06 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1e06 RCSB], [https://www.ebi.ac.uk/pdbsum/1e06 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1e06 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/OBP_PIG OBP_PIG]] This protein is found in nasal epithelium and it binds a wide variety of chemical odorants.  
[https://www.uniprot.org/uniprot/OBP_PIG OBP_PIG] This protein is found in nasal epithelium and it binds a wide variety of chemical odorants.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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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=1e06 ConSurf].
</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=1e06 ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Porcine odorant binding protein (pOBP) is a monomer of 157 amino acid residues, purified in abundance from pig nasal mucosa. In contrast to the observation on lipocalins as retinol binding protein (RBP), major urinary protein (MUP) or bovine odorant binding protein (bOBP), no naturally occurring ligand was found in the beta-barrel cavity of pOBP. Porcine OBP was therefore chosen as a simple model for structure/function studies with odorant molecules. In competition experiments with tritiated pyrazine, the affinity of pOBP towards several odorant molecules belonging to different chemical classes has been found to be of the micromolar order, with a 1:1 stoichiometry. The X-ray structures of pOBP complexed to these molecules were determined at resolution between 2.15 and 1.4 A. As expected, the electron density of the odorant molecules was observed into the hydrophobic beta-barrel of the lipocalin. Inside this cavity, very few specific interactions were established between the odorant molecule and the amino acid side-chains, which did not undergo significant conformational change. The high B-factors observed for the odorant molecules as well as the existence of alternative conformations reveal a non-specific mode of binding of the odorant molecules in the cavity.
Complexes of porcine odorant binding protein with odorant molecules belonging to different chemical classes.,Vincent F, Spinelli S, Ramoni R, Grolli S, Pelosi P, Cambillau C, Tegoni M J Mol Biol. 2000 Jun 30;300(1):127-39. PMID:10864504<ref>PMID:10864504</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1e06" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Odorant binding protein 3D structures|Odorant binding protein 3D structures]]
*[[Odorant binding protein 3D structures|Odorant binding protein 3D structures]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Sus scrofa]]
[[Category: Sus scrofa]]
[[Category: Cambillau, C]]
[[Category: Cambillau C]]
[[Category: Spinelli, S]]
[[Category: Spinelli S]]
[[Category: Tegoni, M]]
[[Category: Tegoni M]]
[[Category: Vincent, F]]
[[Category: Vincent F]]
[[Category: Lipocalin]]
[[Category: Odorant-binding protein]]

Revision as of 12:56, 20 March 2024

Porcine Odorant Binding Protein Complexed with 5-methyl-2-(1-methylethyl)phenolPorcine Odorant Binding Protein Complexed with 5-methyl-2-(1-methylethyl)phenol

Structural highlights

1e06 is a 2 chain structure with sequence from Sus scrofa. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.12Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

OBP_PIG This protein is found in nasal epithelium and it binds a wide variety of chemical odorants.

Evolutionary Conservation

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

See Also

1e06, resolution 2.12Å

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OCA
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