PMID: 22449980 , Related PDB id: 4DOU

Authors:

Min X, Lemon B, Tang J, Liu Q, Zhang R, Walker N, Li Y, Wang Z

Title:

Crystal structure of a single-chain trimer of human adiponectin globular domain.

Journal:

FEBS Lett. 2012 Mar 23;586(6):912-7. Epub 2012 Feb 22.

Abstract:

Adiponectin is increasingly recognized as a potential therapeutic agent for the treatment of diabetes and other metabolic diseases. It circulates in plasma as homotrimers and higher-order oliogomers of homotrimers. To facilitate the production of active recombinant adiponectin as a therapeutic tool, we designed a single-chain globular domain adiponectin (sc-gAd) in which three monomer sequences are linked together in tandem to form one contiguous polypeptide. Here, we present the crystal structure of human sc-gAd at 2.0A resolution. The structure reveals a similar trimeric topology to that of mouse gAd protein. Trimer formation is further rigidified by three calcium ions.