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==Bovine AlphaA crystallin Zinc Bound==
==Bovine AlphaA crystallin Zinc Bound==
<StructureSection load='3l1e' size='340' side='right' caption='[[3l1e]], [[Resolution|resolution]] 1.15&Aring;' scene=''>
<StructureSection load='3l1e' size='340' side='right'caption='[[3l1e]], [[Resolution|resolution]] 1.15&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[3l1e]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Bovin Bovin]. The July 2010 RCSB PDB [http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Crystallins''  by David Goodsell is [http://dx.doi.org/10.2210/rcsb_pdb/mom_2010_7 10.2210/rcsb_pdb/mom_2010_7]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3L1E OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3L1E FirstGlance]. <br>
<table><tr><td colspan='2'>[[3l1e]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. The July 2010 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Crystallins''  by David Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2010_7 10.2210/rcsb_pdb/mom_2010_7]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3L1E OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3L1E FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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]] 1.15&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3l1f|3l1f]], [[3l1g|3l1g]]</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CRYA1, CRYAA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9913 BOVIN])</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=3l1e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3l1e OCA], [https://pdbe.org/3l1e PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3l1e RCSB], [https://www.ebi.ac.uk/pdbsum/3l1e PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3l1e ProSAT]</span></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=3l1e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3l1e OCA], [http://pdbe.org/3l1e PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3l1e RCSB], [http://www.ebi.ac.uk/pdbsum/3l1e PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3l1e ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/CRYAA_BOVIN CRYAA_BOVIN]] May contribute to the transparency and refractive index of the lens. Has chaperone-like activity, preventing aggregation of various proteins under a wide range of stress conditions.  
[https://www.uniprot.org/uniprot/CRYAA_BOVIN CRYAA_BOVIN] May contribute to the transparency and refractive index of the lens. Has chaperone-like activity, preventing aggregation of various proteins under a wide range of stress conditions.
== 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/l1/3l1e_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/l1/3l1e_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>
Line 21: Line 20:
</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=3l1e 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=3l1e ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Small heat shock proteins alphaA and alphaB crystallin form highly polydisperse oligomers that frustrate protein aggregation, crystallization, and amyloid formation. Here, we present the crystal structures of truncated forms of bovine alphaA crystallin (AAC(59-163)) and human alphaB crystallin (ABC(68-162)), both containing the C-terminal extension that functions in chaperone action and oligomeric assembly. In both structures, the C-terminal extensions swap into neighboring molecules, creating runaway domain swaps. This interface, termed DS, enables crystallin polydispersity because the C-terminal extension is palindromic and thereby allows the formation of equivalent residue interactions in both directions. That is, we observe that the extension binds in opposite directions at the DS interfaces of AAC(59-163) and ABC(68-162). A second dimeric interface, termed AP, also enables polydispersity by forming an antiparallel beta sheet with three distinct registration shifts. These two polymorphic interfaces enforce polydispersity of alpha crystallin. This evolved polydispersity suggests molecular mechanisms for chaperone action and for prevention of crystallization, both necessary for transparency of eye lenses.


Crystal structures of truncated alphaA and alphaB crystallins reveal structural mechanisms of polydispersity important for eye lens function.,Laganowsky A, Benesch JL, Landau M, Ding L, Sawaya MR, Cascio D, Huang Q, Robinson CV, Horwitz J, Eisenberg D Protein Sci. 2010 May;19(5):1031-43. PMID:20440841<ref>PMID:20440841</ref>
==See Also==
 
*[[Crystallin 3D structures|Crystallin 3D structures]]
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 3l1e" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Bovin]]
[[Category: Bos taurus]]
[[Category: Crystallins]]
[[Category: Crystallins]]
[[Category: Large Structures]]
[[Category: RCSB PDB Molecule of the Month]]
[[Category: RCSB PDB Molecule of the Month]]
[[Category: Cascio, D]]
[[Category: Cascio D]]
[[Category: Eisenberg, D]]
[[Category: Eisenberg D]]
[[Category: Laganowsky, A]]
[[Category: Laganowsky A]]
[[Category: Sawaya, M R]]
[[Category: Sawaya MR]]
[[Category: Chaperone]]
[[Category: Crystallin]]
[[Category: Eye lens protein]]
[[Category: Lens transparency]]
[[Category: Polydispersity]]
[[Category: Protein aggregation]]

Latest revision as of 13:19, 21 February 2024

Bovine AlphaA crystallin Zinc BoundBovine AlphaA crystallin Zinc Bound

Structural highlights

3l1e is a 1 chain structure with sequence from Bos taurus. The July 2010 RCSB PDB Molecule of the Month feature on Crystallins by David Goodsell is 10.2210/rcsb_pdb/mom_2010_7. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.15Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

CRYAA_BOVIN May contribute to the transparency and refractive index of the lens. Has chaperone-like activity, preventing aggregation of various proteins under a wide range of stress conditions.

Evolutionary Conservation

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

See Also

3l1e, resolution 1.15Å

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