4f5u: Difference between revisions
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==Crystal structure of Equine Serum Albumin at 2.04 resolution== | ==Crystal structure of Equine Serum Albumin at 2.04 resolution== | ||
<StructureSection load='4f5u' size='340' side='right' caption='[[4f5u]], [[Resolution|resolution]] 2.04Å' scene=''> | <StructureSection load='4f5u' size='340' side='right'caption='[[4f5u]], [[Resolution|resolution]] 2.04Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[4f5u]] is a 1 chain structure with sequence from [ | <table><tr><td colspan='2'>[[4f5u]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Equus_caballus Equus caballus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4F5U OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4F5U FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=LMR:(2S)-2-HYDROXYBUTANEDIOIC+ACID'>LMR</scene>, <scene name='pdbligand=MLI:MALONATE+ION'>MLI</scene>, <scene name='pdbligand=SIN:SUCCINIC+ACID'>SIN</scene> | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.04Å</td></tr> | ||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=LMR:(2S)-2-HYDROXYBUTANEDIOIC+ACID'>LMR</scene>, <scene name='pdbligand=MLI:MALONATE+ION'>MLI</scene>, <scene name='pdbligand=SIN:SUCCINIC+ACID'>SIN</scene></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4f5u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4f5u OCA], [https://pdbe.org/4f5u PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4f5u RCSB], [https://www.ebi.ac.uk/pdbsum/4f5u PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4f5u ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | |||
[https://www.uniprot.org/uniprot/ALBU_HORSE ALBU_HORSE] | |||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
<div class="pdbe-citations 4f5u" style="background-color:#fffaf0;"></div> | |||
==See Also== | ==See Also== | ||
*[[Albumin|Albumin]] | *[[Albumin 3D structures|Albumin 3D structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Equus caballus]] | [[Category: Equus caballus]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Bujacz | [[Category: Bujacz A]] | ||
[[Category: | [[Category: Bujacz G]] | ||
Latest revision as of 12:59, 30 October 2024
Crystal structure of Equine Serum Albumin at 2.04 resolutionCrystal structure of Equine Serum Albumin at 2.04 resolution
Structural highlights
FunctionPublication Abstract from PubMedSerum albumin first appeared in early vertebrates and is present in the plasma of all mammals. Its canonical structure supported by a conserved set of disulfide bridges is maintained in all mammalian serum albumins and any changes in sequence are highly correlated with evolution of the species. Previous structural investigations of mammalian serum albumins have only concentrated on human serum albumin (HSA), most likely as a consequence of crystallization and diffraction difficulties. Here, the crystal structures of serum albumins isolated from bovine, equine and leporine blood plasma are reported. The structure of bovine serum albumin (BSA) was determined at 2.47 A resolution, two crystal structures of equine serum albumin (ESA) were determined at resolutions of 2.32 and 2.04 A, and that of leporine serum albumin (LSA) was determined at 2.27 A resolution. These structures were compared in detail with the structure of HSA. The ligand-binding pockets in BSA, ESA and LSA revealed different amino-acid compositions and conformations in comparison to HSA in some cases; however, much more significant differences were observed on the surface of the molecules. BSA, which is one of the most extensively utilized proteins in laboratory practice and is used as an HSA substitute in many experiments, exhibits only 75.8% identity compared with HSA. The higher resolution crystal structure of ESA highlights the binding properties of this protein because it includes several bound compounds from the crystallization solution that provide additional structural information about potential ligand-binding pockets. Structures of bovine, equine and leporine serum albumin.,Bujacz A Acta Crystallogr D Biol Crystallogr. 2012 Oct;68(Pt 10):1278-89. Epub 2012 Sep, 13. PMID:22993082[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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