This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

3sgp

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 20:14, 11 August 2016

Amyloid-related segment of alphaB-crystallin residues 90-100 mutant V91L

Structural highlights

3sgp is a 4 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Related:	3sgm, 3sgn, 3sgo, 3sgr, 3sgs
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[CRYAB_HUMAN] Posterior polar cataract;Alpha-crystallinopathy;Zonular cataract;Familial isolated dilated cardiomyopathy;Fatal infantile hypertonic myofibrillar myopathy. The disease is caused by mutations affecting the gene represented in this entry. The disease is caused by mutations affecting the gene represented in this entry. The disease is caused by mutations affecting the gene represented in this entry. The disease is caused by mutations affecting the gene represented in this entry.

Function

[CRYAB_HUMAN] 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.

Publication Abstract from PubMed

Amyloid diseases, including Alzheimer's, Parkinson's, and the prion conditions, are each associated with a particular protein in fibrillar form. These amyloid fibrils were long suspected to be the disease agents, but evidence suggests that smaller, often transient and polymorphic oligomers are the toxic entities. Here, we identify a segment of the amyloid-forming protein alphaB crystallin, which forms an oligomeric complex exhibiting properties of other amyloid oligomers: beta-sheet-rich structure, cytotoxicity, and recognition by an oligomer-specific antibody. The x-ray-derived atomic structure of the oligomer reveals a cylindrical barrel, formed from six antiparallel protein strands, that we term a cylindrin. The cylindrin structure is compatible with a sequence segment from the beta-amyloid protein of Alzheimer's disease. Cylindrins offer models for the hitherto elusive structures of amyloid oligomers.

Atomic view of a toxic amyloid small oligomer.,Laganowsky A, Liu C, Sawaya MR, Whitelegge JP, Park J, Zhao M, Pensalfini A, Soriaga AB, Landau M, Teng PK, Cascio D, Glabe C, Eisenberg D Science. 2012 Mar 9;335(6073):1228-31. PMID:22403391^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Laganowsky A, Liu C, Sawaya MR, Whitelegge JP, Park J, Zhao M, Pensalfini A, Soriaga AB, Landau M, Teng PK, Cascio D, Glabe C, Eisenberg D. Atomic view of a toxic amyloid small oligomer. Science. 2012 Mar 9;335(6073):1228-31. PMID:22403391 doi:10.1126/science.1213151

1 Structural highlights
2 Disease
3 Function
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3sgp"

@@ Line 1: / Line 1: @@
 ==Amyloid-related segment of alphaB-crystallin residues 90-100 mutant V91L==
 <StructureSection load='3sgp' size='340' side='right' caption='[[3sgp]], [[Resolution|resolution]] 1.40&Aring;' scene=''>
@@ Line 5: / Line 6: @@
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MPD:(4S)-2-METHYL-2,4-PENTANEDIOL'>MPD</scene>, <scene name='pdbligand=MRD:(4R)-2-METHYLPENTANE-2,4-DIOL'>MRD</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3sgm|3sgm]], [[3sgn|3sgn]], [[3sgo|3sgo]], [[3sgr|3sgr]], [[3sgs|3sgs]]</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=3sgp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3sgp OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3sgp RCSB], [http://www.ebi.ac.uk/pdbsum/3sgp PDBsum]</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=3sgp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3sgp OCA], [http://pdbe.org/3sgp PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3sgp RCSB], [http://www.ebi.ac.uk/pdbsum/3sgp PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3sgp ProSAT]</span></td></tr>
 </table>
 == Disease ==
@@ Line 19: / Line 20: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 3sgp" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>

3sgp

From Proteopedia

Revision as of 20:14, 11 August 2016

Amyloid-related segment of alphaB-crystallin residues 90-100 mutant V91L

Structural highlights

Disease

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox