2L74

Solution structure of the PilZ domain protein PA4608 complex with c-di-GMP identifies charge clustering as molecular readout

2L74 の概要

• エントリーDOI: 10.2210/pdb2l74/pdb
• 関連するPDBエントリー: 1YWU 3KYF
• 分子名称: Putative uncharacterized protein PA4608, 9,9'-[(2R,3R,3aS,5S,7aR,9R,10R,10aS,12S,14aR)-3,5,10,12-tetrahydroxy-5,12-dioxidooctahydro-2H,7H-difuro[3,2-d:3',2'-j][1,3,7,9,2,8]tetraoxadiphosphacyclododecine-2,9-diyl]bis(2-amino-1,9-dihydro-6H-purin-6-one) (2 entities in total)
• 機能のキーワード: pilz, pa4608, c-di-gmp, unknown function, c-di-gmp binding protein
• 由来する生物種: Pseudomonas aeruginosa
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 18145.57

構造登録者

Habazettl, J.,Allan, M.,Jenal, U.,Grzesiek, S. (登録日: 2010-12-02, 公開日: 2011-02-09, 最終更新日: 2024-05-01)

主引用文献

Habazettl, J.,Allan, M.G.,Jenal, U.,Grzesiek, S.
Solution structure of the PilZ domain protein PA4608 complex with cyclic di-GMP identifies charge clustering as molecular readout
J.Biol.Chem., 286:14304-14314, 2011

PubMed Abstract: Cyclic diguanosine monophosphate (c-di-GMP) is a ubiquitous bacterial second messenger that controls the switch from a single-cell lifestyle to surface-attached, multicellular communities called biofilms. PilZ domain proteins are a family of bacterial c-di-GMP receptors, which control various cellular processes. We have solved the solution structure of the Pseudomonas aeruginosa single-domain PilZ protein PA4608 in complex with c-di-GMP by NMR spectroscopy. Isotope labeling by (13)C and (15)N of both the ligand and the protein made it possible to define the structure of c-di-GMP in the complex at high precision by a large number of intermolecular and intraligand NOEs and by two intermolecular hydrogen bond scalar couplings. Complex formation induces significant rearrangements of the C- and N-terminal parts of PA4608. c-di-GMP binds as an intercalated, symmetric dimer to one side of the β-barrel, thereby displacing the C-terminal helix of the apo state. The N-terminal RXXXR PilZ domain motif, which is flexible in the apo state, wraps around the ligand and in turn ties the displaced C terminus in a loose manner by a number of hydrophobic contacts. The recognition of the dimeric ligand is achieved by numerous H-bonds and stacking interactions involving residues Arg(8), Arg(9), Arg(10), and Arg(13) of the PilZ motif, as well as β-barrel residues Asp(35) and Trp(77). As a result of the rearrangement of the N and C termini, a highly negative surface is created on one side of the protein complex. We propose that the movement of the termini and the resulting negative surface form the basis for downstream signaling.

PubMed: 21310957
DOI: 10.1074/jbc.M110.209007

実験手法

SOLUTION NMR