1U4R

Crystal Structure of human RANTES mutant 44-AANA-47

1U4R の概要

• エントリーDOI: 10.2210/pdb1u4r/pdb
• 関連するPDBエントリー: 1b3a 1eqt 1u4l 1u4m 1u4p
• 分子名称: Small inducible cytokine A5, SULFATE ION (3 entities in total)
• 機能のキーワード: chemoattractant, cytokine, chemokine, rantes, mutant, glycosaminoglycan, protein-heparin disaccharide complex, attractant
• 由来する生物種: Homo sapiens (human)
• 細胞内の位置: Secreted: P13501
• タンパク質・核酸の鎖数: 4
• 化学式量合計: 30814.89

構造登録者

Shaw, J.P.,Johnson, Z.,Borlat, F.,Zwahlen, C.,Kungl, A.,Roulin, K.,Harrenga, A.,Wells, T.N.C.,Proudfoot, A.E.I. (登録日: 2004-07-26, 公開日: 2004-11-09, 最終更新日: 2024-11-06)

主引用文献

Shaw, J.P.,Johnson, Z.,Borlat, F.,Zwahlen, C.,Kungl, A.,Roulin, K.,Harrenga, A.,Wells, T.N.,Proudfoot, A.E.
The X-ray structure of RANTES: heparin-derived disaccharides allows the rational design of chemokine inhibitors.
Structure, 12:2081-2093, 2004

PubMed Abstract: The biological activity of chemokines requires interactions with cell surface proteoglycans. We have determined the structure of the chemokine RANTES (regulated on activation normal T cell expressed) in the presence of heparin-derived disaccharide analogs by X-ray crystallography. These structures confirm the essential role of the BBXB motif in the interaction between the chemokine and the disaccharide. Unexpected interactions were observed in the 30s loop and at the amino terminus. Mutant RANTES molecules were designed to abrogate these interactions and their biological activity examined in vivo. The K45E mutant within the BBXB motif lost the capacity to bind heparin and the ability to elicit cellular recruitment. The Y3A mutant maintained its capacity to bind heparin but was unable to elicit cellular recruitment. Finally, a tetrasaccharide is the smallest oligosaccharide which effectively abolishes the ability of RANTES to recruit cells in vivo. These crystallographic structures provide a description of the molecular interaction of a chemokine with glycosaminoglycans.

PubMed: 15530372
DOI: 10.1016/j.str.2004.08.014

実験手法

X-RAY DIFFRACTION (2.2 Å)