Recovering lost magnetization: polarization enhancement in biomolecular NMR.

		BioNMR > Educational resources > Journal club
Recovering lost magnetization: polarization enhancement in biomolecular NMR.

Webservers

NMR processing:

MDD

NMR assignment:

Backbone:

Side-chains:

NOEs:

Structure from NMR restraints:

Ab initio:

Fragment-based:

Rosetta-NMR (Robetta)

Template-based:

GeNMR

I-TASSER

Refinement:

Amber

Structure from chemical shifts:

Fragment-based:

Homology-based:

Torsion angles from chemical shifts:

Preditor

TALOS

Promega- Proline

Secondary structure from chemical shifts:

CSI (via RCI server)

TALOS

MICS caps, β-turns

d2D

PECAN

Flexibility from chemical shifts:

RCI

Interactions from chemical shifts:

HADDOCK

Chemical shifts re-referencing:

NMR model quality:

NOEs, other restraints:

Chemical shifts:

RDCs:

Pseudocontact shifts:

Protein geomtery:

SAVES2 or SAVES4

Quality Control Check

NMR spectrum prediction:

FANDAS

MestReS

V-NMR

Flexibility from structure:

Backbone S2

Methyl S2

B-factor

Molecular dynamics:

Gromacs

Amber

Antechamber

Chemical shifts prediction:

From structure:

Shiftx2

Sparta+

Camshift

CH3shift- Methyl

ArShift- Aromatic

ShiftS

Proshift

PPM

CheShift-2- Cα

From sequence:

Shifty

Camcoil

Poulsen_rc_CS

Disordered proteins:

MAXOCC

Format conversion & validation:

CCPN

From NMR-STAR 3.1

Validate NMR-STAR 3.1

NMR sample preparation:

Protein disorder:

DisMeta

Protein solubility:

Isotope labeling:

Solid-state NMR:

View First Unread

Thread Tools

Search this Thread

Rate Thread

Display Modes

12-31-2010, 07:03 PM

nmrlearner

Senior Member

Join Date: Jan 2005

Posts: 23,174

Points: 193,617, Level: 100

Level up: 0%, 0 Points needed

Activity: 50.7%

Last Achievements

Award-Showcase

NMR Credits: 0

NMR Points: 193,617

Downloads: 0

Uploads: 0

Recovering lost magnetization: polarization enhancement in biomolecular NMR.

Recovering lost magnetization: polarization enhancement in biomolecular NMR.

Recovering lost magnetization: polarization enhancement in biomolecular NMR.

J Biomol NMR. 2010 Dec 30;

Authors: Favier A, Brutscher B

Experimental sensitivity remains a major drawback for the application of NMR spectroscopy to fragile and low concentrated biomolecular samples. Here we describe an efficient polarization enhancement mechanism in longitudinal-relaxation enhanced fast-pulsing triple-resonance experiments. By recovering undetectable (1)H polarization originating from longitudinal relaxation during the pulse sequence, the steady-state (15)N polarization becomes enhanced by up to a factor of ~5 with respect to thermal equilibrium yielding significant sensitivity improvements compared to conventional schemes. The benefits of BEST-TROSY experiments at high magnetic field strength are illustrated for various protein applications, but they will be equally useful for other protonated macromolecular systems.

PMID: 21190063 [PubMed - as supplied by publisher]

Source: PubMed

Did you find this post helpful?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Repetitive cross-polarization contacts via equilibration-re-equilibration of the proton bath: Sensitivity enhancement for NMR of membrane proteins reconstituted in magnetically aligned bicelles. Repetitive cross-polarization contacts via equilibration-re-equilibration of the proton bath: Sensitivity enhancement for NMR of membrane proteins reconstituted in magnetically aligned bicelles. Repetitive cross-polarization contacts via equilibration-re-equilibration of the proton bath: Sensitivity enhancement for NMR of membrane proteins reconstituted in magnetically aligned bicelles. J Magn Reson. 2011 Jul 2; Authors: Tang W, Nevzorov AA Thermodynamic limit of magnetization corresponding to the intact proton bath usually cannot be transferred...	nmrlearner	Journal club	0	07-26-2011 09:30 PM
Repetitive cross-polarization contacts via equilibration-re-equilibration of the proton bath: sensitivity enhancement for NMR of membrane proteins reconstituted in magnetically aligned bicelles Repetitive cross-polarization contacts via equilibration-re-equilibration of the proton bath: sensitivity enhancement for NMR of membrane proteins reconstituted in magnetically aligned bicelles Publication year: 2011 Source: Journal of Magnetic Resonance, In Press, Accepted Manuscript, Available online 2 July 2011</br> Wenxing, Tang , Alexander A., Nevzorov</br> Thermodynamic limit of magnetization corresponding to the intact proton bath often cannot be transferred in a single cross-polarization contact. This is mainly due to the finite ratio between the number densities of the high-...	nmrlearner	Journal club	0	07-05-2011 05:52 AM
[NMR tweet] @Kevin_Orndorff I couldnt even tell you, I'm that lost. My notes say nuclear magnetic resonance spectroscopy @Kevin_Orndorff I couldnt even tell you, I'm that lost. My notes say nuclear magnetic resonance spectroscopy Published by grrraciecat (Gracie Mueller) on 2011-03-23T14:24:26Z Source: Twitter	nmrlearner	Twitter NMR	0	03-23-2011 02:51 PM
Straightforward, effective calibration of SPINAL-64 decoupling results in the enhancement of sensitivity and resolution of biomolecular solid-state NMR. Straightforward, effective calibration of SPINAL-64 decoupling results in the enhancement of sensitivity and resolution of biomolecular solid-state NMR. Straightforward, effective calibration of SPINAL-64 decoupling results in the enhancement of sensitivity and resolution of biomolecular solid-state NMR. J Magn Reson. 2010 Dec 31; Authors: Comellas G, Lopez JJ, Nieuwkoop AJ, Lemkau LR, Rienstra CM We describe a simple yet highly effective optimization strategy for SPINAL-64 (1)H decoupling conditions for magic-angle spinning solid-state NMR. With...	nmrlearner	Journal club	0	02-08-2011 06:28 PM
Overcoming the solubility limit with solubility-enhancement tags: successful applications in biomolecular NMR studies Overcoming the solubility limit with solubility-enhancement tags: successful applications in biomolecular NMR studies Abstract Although the rapid progress of NMR technology has significantly expanded the range of NMR-trackable systems, preparation of NMR-suitable samples that are highly soluble and stable remains a bottleneck for studies of many biological systems. The application of solubility-enhancement tags (SETs) has been highly effective in overcoming solubility and sample stability issues and has enabled structural studies of important biological systems previously deemed...	nmrlearner	Journal club	0	01-09-2011 12:46 PM
Straightforward, effective calibration of SPINAL-64 decoupling results in the enhancement of sensitivity and resolution of biomolecular solid-state NMR Straightforward, effective calibration of SPINAL-64 decoupling results in the enhancement of sensitivity and resolution of biomolecular solid-state NMR Publication year: 2010 Source: Journal of Magnetic Resonance, In Press, Accepted Manuscript, Available online 31 December 2010</br> Gemma, Comellas , Jakob J., Lopez , Andrew J., Nieuwkoop , Luisel R., Lemkau , Chad M., Rienstra</br> We describe a simple yet highly effective optimization strategy for SPINAL-64 1H decoupling conditions for magic-angle spinning solid-state NMR. With adjustment of the phase angles in a coupled manner,...	nmrlearner	Journal club	0	01-01-2011 08:57 AM
Recovering lost magnetization: polarization enhancement in biomolecular NMR Recovering lost magnetization: polarization enhancement in biomolecular NMR Abstract Experimental sensitivity remains a major drawback for the application of NMR spectroscopy to fragile and low concentrated biomolecular samples. Here we describe an efficient polarization enhancement mechanism in longitudinal-relaxation enhanced fast-pulsing triple-resonance experiments. By recovering undetectable 1H polarization originating from longitudinal relaxation during the pulse sequence, the steady-state 15N polarization becomes enhanced by up to a factor of ~5 with respect to thermal...	nmrlearner	Journal club	0	12-31-2010 08:38 PM
[Stan NMR blog] FT versus CW: What we gained and what we lost FT versus CW: What we gained and what we lost Reminiscences over a 1975 CW-NMR spectrum of ODCB More...	nmrlearner	News from NMR blogs	0	08-21-2010 05:42 PM

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is On Trackbacks are Off Pingbacks are Off Refbacks are Off