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==THE CRYSTAL STRUCTURES OF A2U-GLOBULIN AND ITS COMPLEX WITH A HYALINE DROPLET INDUCER.==
==THE CRYSTAL STRUCTURES OF A2U-GLOBULIN AND ITS COMPLEX WITH A HYALINE DROPLET INDUCER.==
<StructureSection load='2a2g' size='340' side='right' caption='[[2a2g]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
<StructureSection load='2a2g' size='340' side='right'caption='[[2a2g]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[2a2g]] is a 4 chain structure with 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=2A2G OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2A2G FirstGlance]. <br>
<table><tr><td colspan='2'>[[2a2g]] is a 4 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=2A2G OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2A2G FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=LEO:D-LIMONENE+1,2-EPOXIDE'>LEO</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]] 2.9&#8491;</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2a2g FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2a2g OCA], [http://pdbe.org/2a2g PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2a2g RCSB], [http://www.ebi.ac.uk/pdbsum/2a2g PDBsum]</span></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=LEO:D-LIMONENE+1,2-EPOXIDE'>LEO</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=2a2g FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2a2g OCA], [https://pdbe.org/2a2g PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2a2g RCSB], [https://www.ebi.ac.uk/pdbsum/2a2g PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2a2g ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/MUP_RAT MUP_RAT]] Major urinary proteins (Mups) bind and release pheromones. They may also protect pheromones from oxidation. In this context, they play a role in the regulation of social behaviors, such as aggression, mating, pup-suckling, territory establishment and dominance. Acts as a kairomone, detected by the prey vomeronasal organ and inducing fear reactions in mice.  
[https://www.uniprot.org/uniprot/MUP_RAT MUP_RAT] Major urinary proteins (Mups) bind and release pheromones. They may also protect pheromones from oxidation. In this context, they play a role in the regulation of social behaviors, such as aggression, mating, pup-suckling, territory establishment and dominance. Acts as a kairomone, detected by the prey vomeronasal organ and inducing fear reactions in mice.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
   <jmolCheckbox>
   <jmolCheckbox>
     <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/a2/2a2g_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/a2/2a2g_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
   </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/chain_selection.php?pdb_ID=2ata 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=2a2g ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Alpha 2u-globulin (A2U) is the major urinary protein excreted by adult male rats. The structure of a monoclinic crystal form of A2U was reported in 1992 [Bocskei et al. (1992). Nature (London), 360, 186-188]. The structures of an orthorhombic crystal form of A2U at 2. 5 A resolution (refined to an R factor of 0.248; Rfree = 0.264) and of a complex between A2U and d-limonene 1,2-epoxide (DLO) at 2.9 A resolution (R factor = 0.248; Rfree = 0.260) are presented here. DLO is one of a diverse group of chemicals which cause a male rat-specific renal carcinogenesis called hyaline-droplet nephropathy. The rate-determining step in the development of this disorder is the binding of the toxin to A2U. Comparison of the cavities in A2U and in the corresponding mouse urinary protein (MUP) reveal that the former is tailor-made for small oval hydrophobic ligands such as DLO. The cavity in MUP is more shallow and elongated and cannot easily accommodate such ligands.
The structures of alpha 2u-globulin and its complex with a hyaline droplet inducer.,Chaudhuri BN, Kleywegt GJ, Bjorkman J, Lehman-McKeeman LD, Oliver JD, Jones TA Acta Crystallogr D Biol Crystallogr. 1999 Apr;55(Pt 4):753-62. PMID:10089305<ref>PMID:10089305</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2a2g" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Large Structures]]
[[Category: Rattus norvegicus]]
[[Category: Rattus norvegicus]]
[[Category: Chaudhuri, B N]]
[[Category: Chaudhuri BN]]
[[Category: Jones, T A]]
[[Category: Jones TA]]
[[Category: Kleywegt, G J]]
[[Category: Kleywegt GJ]]
[[Category: Lipid-binding protein]]

Latest revision as of 06:23, 3 April 2024

THE CRYSTAL STRUCTURES OF A2U-GLOBULIN AND ITS COMPLEX WITH A HYALINE DROPLET INDUCER.

2a2g, resolution 2.90Å

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