1d2s: Difference between revisions

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[[Image:1d2s.png|left|200px]]


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==CRYSTAL STRUCTURE OF THE N-TERMINAL LAMININ G-LIKE DOMAIN OF SHBG IN COMPLEX WITH DIHYDROTESTOSTERONE==
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<StructureSection load='1d2s' size='340' side='right'caption='[[1d2s]], [[Resolution|resolution]] 1.55&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1d2s]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. The August 2007 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Anabolic Steroids''  by David S. Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2007_8 10.2210/rcsb_pdb/mom_2007_8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1D2S OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1D2S 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]] 1.55&#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=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=DHT:5-ALPHA-DIHYDROTESTOSTERONE'>DHT</scene></td></tr>
{{STRUCTURE_1d2s|  PDB=1d2s  |  SCENE=  }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1d2s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1d2s OCA], [https://pdbe.org/1d2s PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1d2s RCSB], [https://www.ebi.ac.uk/pdbsum/1d2s PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1d2s ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/SHBG_HUMAN SHBG_HUMAN] Functions as an androgen transport protein, but may also be involved in receptor mediated processes. Each dimer binds one molecule of steroid. Specific for 5-alpha-dihydrotestosterone, testosterone, and 17-beta-estradiol. Regulates the plasma metabolic clearance rate of steroid hormones by controlling their plasma concentration.
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
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    <text>to colour the structure by Evolutionary Conservation</text>
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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=1d2s ConSurf].
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== Publication Abstract from PubMed ==
Human sex hormone-binding globulin (SHBG) transports sex steroids in blood and regulates their access to target tissues. In biological fluids, SHBG exists as a homodimer and each monomer comprises two laminin G-like domains (G domains). The crystal structure of the N-terminal G domain of SHBG in complex with 5alpha-dihydrotestosterone at 1.55 A resolution reveals both the architecture of the steroid-binding site and the quaternary structure of the dimer. We also show that G domains have jellyroll topology and are structurally related to pentraxin. In each SHBG monomer, the steroid intercalates into a hydrophobic pocket within the beta-sheet sandwich. The steroid and a 20 A distant calcium ion are not located at the dimer interface. Instead, two separate steroid-binding pockets and calcium-binding sites exist per dimer. The structure displays intriguing disorder for loop segment Pro130-Arg135. In all other jellyroll proteins, this loop is well ordered. If modelled accordingly, it covers the steroid-binding site and could thereby regulate access of ligands to the binding pocket.


===CRYSTAL STRUCTURE OF THE N-TERMINAL LAMININ G-LIKE DOMAIN OF SHBG IN COMPLEX WITH DIHYDROTESTOSTERONE===
Crystal structure of human sex hormone-binding globulin: steroid transport by a laminin G-like domain.,Grishkovskaya I, Avvakumov GV, Sklenar G, Dales D, Hammond GL, Muller YA EMBO J. 2000 Feb 15;19(4):504-12. PMID:10675319<ref>PMID:10675319</ref>


 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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== References ==
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{{ABSTRACT_PUBMED_10675319}}
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</StructureSection>
==About this Structure==
1D2S is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Additional information on 1D2S is available in a page on [http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb92_1.html Anabolic Steroids] at the RCSB PDB [http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1D2S OCA].
 
==Reference==
Crystal structure of human sex hormone-binding globulin: steroid transport by a laminin G-like domain., Grishkovskaya I, Avvakumov GV, Sklenar G, Dales D, Hammond GL, Muller YA, EMBO J. 2000 Feb 15;19(4):504-12. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10675319 10675319]
[[Category: Anabolic Steroids]]
[[Category: Anabolic Steroids]]
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Avvakumov, G V.]]
[[Category: RCSB PDB Molecule of the Month]]
[[Category: Dales, D.]]
[[Category: Avvakumov GV]]
[[Category: Grishkovskaya, I.]]
[[Category: Dales D]]
[[Category: Hammond, G L.]]
[[Category: Grishkovskaya I]]
[[Category: Muller, Y A.]]
[[Category: Hammond GL]]
[[Category: Sklenar, G.]]
[[Category: Muller YA]]
[[Category: Jellyroll]]
[[Category: Sklenar G]]
[[Category: Laminin g-like domain]]
[[Category: Steroid transport]]
 
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