View source for 2bxe


==Human serum albumin complexed with diflunisal==
<StructureSection load='2bxe' size='340' side='right'caption='[[2bxe]], [[Resolution|resolution]] 2.95&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2bxe]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BXE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2BXE FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=1FL:5-(2,4-DIFLUOROPHENYL)-2-HYDROXY-BENZOIC+ACID'>1FL</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2bx8|2bx8]], [[2bxa|2bxa]], [[2bxb|2bxb]], [[2bxc|2bxc]], [[2bxd|2bxd]], [[2bxf|2bxf]], [[2bxg|2bxg]], [[2bxh|2bxh]], [[2bxi|2bxi]], [[2bxk|2bxk]], [[2bxl|2bxl]], [[2bxm|2bxm]], [[2bxn|2bxn]], [[2bxo|2bxo]], [[2bxp|2bxp]], [[2bxq|2bxq]]</div></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=2bxe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bxe OCA], [https://pdbe.org/2bxe PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2bxe RCSB], [https://www.ebi.ac.uk/pdbsum/2bxe PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2bxe ProSAT]</span></td></tr>
</table>
== Disease ==
[[https://www.uniprot.org/uniprot/ALBU_HUMAN ALBU_HUMAN]] Defects in ALB are a cause of familial dysalbuminemic hyperthyroxinemia (FDH) [MIM:[https://omim.org/entry/103600 103600]]. FDH is a form of euthyroid hyperthyroxinemia that is due to increased affinity of ALB for T(4). It is the most common cause of inherited euthyroid hyperthyroxinemia in Caucasian population.<ref>PMID:8048949</ref> <ref>PMID:7852505</ref> <ref>PMID:9329347</ref> <ref>PMID:9589637</ref>  
== Function ==
[[https://www.uniprot.org/uniprot/ALBU_HUMAN ALBU_HUMAN]] Serum albumin, the main protein of plasma, has a good binding capacity for water, Ca(2+), Na(+), K(+), fatty acids, hormones, bilirubin and drugs. Its main function is the regulation of the colloidal osmotic pressure of blood. Major zinc transporter in plasma, typically binds about 80% of all plasma zinc.<ref>PMID:19021548</ref>  
== 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/bx/2bxe_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=2bxe ConSurf].
<div style="clear:both"></div>
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== Publication Abstract from PubMed ==
Human serum albumin (HSA) is an abundant plasma protein that binds a remarkably wide range of drugs, thereby restricting their free, active concentrations. The problem of overcoming the binding affinity of lead compounds for HSA represents a major challenge in drug development. Crystallographic analysis of 17 different complexes of HSA with a wide variety of drugs and small-molecule toxins reveals the precise architecture of the two primary drug-binding sites on the protein, identifying residues that are key determinants of binding specificity and illuminating the capacity of both pockets for flexible accommodation. Numerous secondary binding sites for drugs distributed across the protein have also been identified. The binding of fatty acids, the primary physiological ligand for the protein, is shown to alter the polarity and increase the volume of drug site 1. These results clarify the interpretation of accumulated drug binding data and provide a valuable template for design efforts to modulate the interaction with HSA.

Structural basis of the drug-binding specificity of human serum albumin.,Ghuman J, Zunszain PA, Petitpas I, Bhattacharya AA, Otagiri M, Curry S J Mol Biol. 2005 Oct 14;353(1):38-52. PMID:16169013<ref>PMID:16169013</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 2bxe" style="background-color:#fffaf0;"></div>

==See Also==
*[[Albumin 3D structures|Albumin 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Human]]
[[Category: Large Structures]]
[[Category: Bhattacharya, A A]]
[[Category: Curry, S]]
[[Category: Ghuman, J]]
[[Category: Petitpas, I]]
[[Category: Zunszain, P A]]
[[Category: Carrier protein]]
[[Category: Drug-binding]]
[[Category: Lipid-binding]]
[[Category: Metal-binding]]
[[Category: Transport protein]]