scholarly journals Solution NMR Structure, Backbone Dynamics, and Heme-Binding Properties of a Novel CytochromecMaturation Protein CcmE fromDesulfovibrio vulgaris

Biochemistry ◽  
2012 ◽  
Vol 51 (18) ◽  
pp. 3705-3707 ◽  
Author(s):  
James M. Aramini ◽  
Keith Hamilton ◽  
Paolo Rossi ◽  
Asli Ertekin ◽  
Hsiau-Wei Lee ◽  
...  
Keyword(s):  
Nmr Structure ◽  
Backbone Dynamics ◽  
Solution Nmr ◽  
Heme Binding ◽  
Binding Properties

Solution NMR Structure and Backbone Dynamics of the PsaE Subunit of Photosystem I fromSynechocystissp. PCC 6803†,‡

Biochemistry ◽  
2002 ◽  
Vol 41 (47) ◽  
pp. 13902-13914 ◽  
Author(s):  
Patrick Barth ◽  
Philippe Savarin ◽  
Bernard Gilquin ◽  
Bernard Lagoutte ◽  
Françoise Ochsenbein
Keyword(s):  
Photosystem I ◽  
Nmr Structure ◽  
Backbone Dynamics ◽  
Solution Nmr ◽  
Pcc 6803

Solution NMR structure of titin N2A region Ig domain I83 and its interaction with metal ions

2021 ◽  
pp. 166977
Author(s):  
Colleen Kelly ◽  
Nicola Pace ◽  
Matthew Gage ◽  
Mark Pfuhl
Keyword(s):  
Metal Ions ◽  
Nmr Structure ◽  
Solution Nmr ◽  
Ig Domain

scholarly journals Solution NMR Structure of the Ca2+-bound N-terminal Domain of CaBP7

2012 ◽  
Vol 287 (45) ◽  
pp. 38231-38243 ◽  
Author(s):  
Hannah V. McCue ◽  
Pryank Patel ◽  
Andrew P. Herbert ◽  
Lu-Yun Lian ◽  
Robert D. Burgoyne ◽  
...  
Keyword(s):  
Nmr Structure ◽  
Solution Nmr ◽  
Terminal Domain

scholarly journals NMR structure of the C-terminal domain of TonB protein from Pseudomonas aeruginosa

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5412 ◽  
Author(s):  
Jesper S. Oeemig ◽  
O.H. Samuli Ollila ◽  
Hideo Iwaï
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Structural Changes ◽  
Nmr Structure ◽  
Dynamics Simulation ◽  
Solution Nmr ◽  
Gram Negative Bacteria ◽  
E Coli ◽  
Terminal Domain ◽  
Tonb Protein ◽  
Monomeric Structure

The TonB protein plays an essential role in the energy transduction system to drive active transport across the outer membrane (OM) using the proton-motive force of the cytoplasmic membrane of Gram-negative bacteria. The C-terminal domain (CTD) of TonB protein is known to interact with the conserved TonB box motif of TonB-dependent OM transporters, which likely induces structural changes in the OM transporters. Several distinct conformations of differently dissected CTDs of Escherichia coli TonB have been previously reported. Here we determined the solution NMR structure of a 96-residue fragment of Pseudomonas aeruginosa TonB (PaTonB-96). The structure shows a monomeric structure with the flexible C-terminal region (residues 338–342), different from the NMR structure of E. coli TonB (EcTonB-137). The extended and flexible C-terminal residues are confirmed by 15N relaxation analysis and molecular dynamics simulation. We created models for the PaTonB-96/TonB box interaction and propose that the internal fluctuations of PaTonB-96 makes it more accessible for the interactions with the TonB box and possibly plays a role in disrupting the plug domain of the TonB-dependent OM transporters.

scholarly journals Solution NMR structure of the N-terminal domain of the human DEK protein

2008 ◽  
Vol 17 (2) ◽  
pp. 205-215 ◽  
Author(s):  
Matthew Devany ◽  
Ferdinand Kappes ◽  
Kuan-Ming Chen ◽  
David M. Markovitz ◽  
Hiroshi Matsuo
Keyword(s):  
Nmr Structure ◽  
Solution Nmr ◽  
Terminal Domain

scholarly journals Intra-locked G-quadruplex structures formed by irregular DNA G-rich motifs

2020 ◽  
Vol 48 (6) ◽  
pp. 3315-3327 ◽  
Author(s):  
Arijit Maity ◽  
Fernaldo Richtia Winnerdy ◽  
Weili Denyse Chang ◽  
Gang Chen ◽  
Anh Tuân Phan
Keyword(s):  
Human Genome ◽  
Dna Sequences ◽  
Structural Features ◽  
Nmr Structure ◽  
Solution Nmr ◽  
Structural Studies ◽  
High Propensity ◽  
G Quadruplex ◽  
High Prevalence

Abstract G-rich DNA sequences with tracts of three or more continuous guanines (G≥3) are known to have high propensity to adopt stable G-quadruplex (G4) structures. Bioinformatic analyses suggest high prevalence of G-rich sequences with short G-tracts (G≤2) in the human genome. However, due to limited structural studies, the folding principles of such sequences remain largely unexplored and hence poorly understood. Here, we present the solution NMR structure of a sequence named AT26 consisting of irregularly spaced G2 tracts and two isolated single guanines. The structure is a four-layered G4 featuring two bi-layered blocks, locked between themselves in an unprecedented fashion making it a stable scaffold. In addition to edgewise and propeller-type loops, AT26 also harbors two V-shaped loops: a 2-nt V-shaped loop spanning two G-tetrad layers and a 0-nt V-shaped loop spanning three G-tetrad layers, which are named as VS- and VR-loop respectively, based on their distinct structural features. The intra-lock motif can be a basis for extending the G-tetrad core and a very stable intra-locked G4 can be formed by a sequence with G-tracts of various lengths including several G2 tracts. Findings from this study will aid in understanding the folding of G4 topologies from sequences containing irregularly spaced multiple short G-tracts.

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