5ezp

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Line 11: Line 11:
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/TTHY_HUMAN TTHY_HUMAN]] Thyroid hormone-binding protein. Probably transports thyroxine from the bloodstream to the brain.<ref>PMID:3714052</ref>
[[http://www.uniprot.org/uniprot/TTHY_HUMAN TTHY_HUMAN]] Thyroid hormone-binding protein. Probably transports thyroxine from the bloodstream to the brain.<ref>PMID:3714052</ref>
 +
<div style="background-color:#fffaf0;">
 +
== Publication Abstract from PubMed ==
 +
Transthyretin (TTR), a 54kDa homotetrameric protein that transports thyroxine (T4), has been associated with clinical cases of TTR amyloidosis for its tendency to aggregate to form fibrils. Many ligands with a potential to inhibit fibril formation have been studied by X-ray crystallography in complex with TTR. Unfortunately, the ligand is often found in ambiguous electron density that is difficult to interpret. The ligand validation statistics suggest over-interpretation, even for the most active compounds like diflunisal. The primary technical reason is its position on a crystallographic 2-fold axis in the most common crystal form. Further investigations with the use of polyethylene glycol (PEG) to crystallize TTR complexes have resulted in a new trigonal polymorph with two tetramers in the asymmetric unit. The ligand used to obtain this new polymorph, 4-hydroxychalcone, is related to curcumin. Here we evaluate this crystal form to understand the contribution it may bring to the study of TTR ligands complexes, which are often asymmetric.
 +
 +
A new crystal form of human transthyretin obtained with a curcumin derived ligand.,Polsinelli I, Nencetti S, Shepard W, Ciccone L, Orlandini E, Stura EA J Struct Biol. 2016 Jan 18. pii: S1047-8477(16)30006-5. doi:, 10.1016/j.jsb.2016.01.007. PMID:26796656<ref>PMID:26796656</ref>
 +
 +
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 +
</div>
 +
<div class="pdbe-citations 5ezp" style="background-color:#fffaf0;"></div>
== References ==
== References ==
<references/>
<references/>

Revision as of 09:10, 10 February 2016

Human transthyretin (TTR) complexed with 4-hydroxy-chalcone

5ezp, resolution 2.50Å

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Personal tools