4ayu
From Proteopedia
(Difference between revisions)
| Line 11: | Line 11: | ||
== Function == | == Function == | ||
[[http://www.uniprot.org/uniprot/SAMP_HUMAN SAMP_HUMAN]] Can interact with DNA and histones and may scavenge nuclear material released from damaged circulating cells. May also function as a calcium-dependent lectin. | [[http://www.uniprot.org/uniprot/SAMP_HUMAN SAMP_HUMAN]] Can interact with DNA and histones and may scavenge nuclear material released from damaged circulating cells. May also function as a calcium-dependent lectin. | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Under physiological conditions, the pentameric human plasma protein serum amyloid P component (SAP) binds hexanoyl bis(D-proline) (R-1-{6-[R-2-carboxy-pyrrolidin-1-yl]-6-oxo-hexanoyl}pyrrolidine-2-carboxylic acid; CPHPC) through its D-proline head groups in a calcium-dependent interaction. Cooperative effects in binding lead to a substantial enhancement of affinity. Five molecules of the bivalent ligand cross-link and stabilize pairs of SAP molecules, forming a decameric complex that is rapidly cleared from the circulation by the liver. Here, it is reported that X-ray analysis of the SAP complex with CPHPC and cadmium ions provides higher resolution detail of the interaction than is observed with calcium ions. Conformational isomers of CPHPC observed in solution by HPLC and by X-ray analysis are compared with the protein-bound form. These are discussed in relation to the development of CPHPC to provide SAP depletion for the treatment of amyloidosis and other indications. | ||
| + | |||
| + | Interaction of serum amyloid P component with hexanoyl bis(D-proline) (CPHPC).,Kolstoe SE, Jenvey MC, Purvis A, Light ME, Thompson D, Hughes P, Pepys MB, Wood SP Acta Crystallogr D Biol Crystallogr. 2014 Aug 1;70(Pt 8):2232-40. doi:, 10.1107/S1399004714013455. Epub 2014 Jul 25. PMID:25084341<ref>PMID:25084341</ref> | ||
| + | |||
| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | == References == | ||
| + | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
Revision as of 06:42, 13 August 2014
Structure of N-Acetyl-D-Proline bound to serum amyloid P component
| |||||||||||
