6I1B

HIGH-RESOLUTION THREE-DIMENSIONAL STRUCTURE OF INTERLEUKIN-1 BETA IN SOLUTION BY THREE-AND FOUR-DIMENSIONAL NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY

6I1B の概要

• エントリーDOI: 10.2210/pdb6i1b/pdb
• 分子名称: INTERLEUKIN-1 BETA (2 entities in total)
• 機能のキーワード: cytokine
• 由来する生物種: Homo sapiens (human)
• 細胞内の位置: Secreted: P01584
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 17395.83

構造登録者

Clore, G.M.,Gronenborn, A.M. (登録日: 1991-01-22, 公開日: 1992-10-15, 最終更新日: 2024-05-22)

主引用文献

Clore, G.M.,Wingfield, P.T.,Gronenborn, A.M.
High-resolution three-dimensional structure of interleukin 1 beta in solution by three- and four-dimensional nuclear magnetic resonance spectroscopy.
Biochemistry, 30:2315-2323, 1991

PubMed Abstract: The determination of the high-resolution three-dimensional solution structure of interleukin 1 beta (IL-1 beta), a protein of 153 residues and 17.4 kDa, which plays a central role in the immune and inflammatory responses, has been determined by heteronuclear (13C and 15N) three- and four-dimensional NMR spectroscopy. The structure is based on 3146 experimental restraints comprising 2780 distance and 366 torsion angle (phi, psi, and chi 1) restraints. A total of 32 simulated annealing structures are calculated, and the atomic RMS distribution about the mean coordinate positions is 0.41 +/- 0.04 A for the backbone atoms and 0.82 +/- 0.04 A for all atoms (excluding residue 1 at the N-terminus and residues 152 and 153 at the C-terminus, which are partially disordered). In the case of internal side chains with a surface accessibility of less than or equal to 40%, the atomic RMS distribution about the mean coordinate positions for all atoms is 0.49 +/- 0.03 A. IL-1 beta resembles a tetrahedron and is composed of 12 beta-strands arranged in three pseudosymmetric topological units, each of which comprises 5 strands. Analysis of the mutational data on IL-1 beta in the light of the three-dimensional structure suggests the presence of three distinct binding sites for the IL-1 receptor on the surface of the protein. It is suggested that each of the three immunoglobulin domains which comprise the extracellular portion of the IL-1 receptor recognizes one of these sites.

PubMed: 2001363
DOI: 10.1021/bi00223a005

実験手法

SOLUTION NMR