BioNMR
NMR aggregator & online community since 2003
BioNMR    
Learn or help to learn NMR - get free NMR books!
 

Go Back   BioNMR > NMR community > News from NMR blogs
Advanced Search
Home Forums Wiki NMR feeds Downloads Register Today's Posts



Jobs Groups Conferences Literature Pulse sequences Software forums Programs Sample preps Web resources BioNMR issues


Webservers
NMR processing:
MDD
NMR assignment:
Backbone:
Autoassign
MARS
UNIO Match
PINE
Side-chains:
UNIO ATNOS-Ascan
NOEs:
UNIO ATNOS-Candid
UNIO Candid
ASDP
Structure from NMR restraints:
Ab initio:
GeNMR
Cyana
XPLOR-NIH
ASDP
UNIO ATNOS-Candid
UNIO Candid
Fragment-based:
BMRB CS-Rosetta
Rosetta-NMR (Robetta)
Template-based:
GeNMR
I-TASSER
Refinement:
Amber
Structure from chemical shifts:
Fragment-based:
WeNMR CS-Rosetta
BMRB CS-Rosetta
Homology-based:
CS23D
Simshift
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:
Shiftcor
UNIO Shiftinspector
LACS
CheckShift
RefDB
NMR model quality:
NOEs, other restraints:
PROSESS
PSVS
RPF scores
iCing
Chemical shifts:
PROSESS
CheShift2
Vasco
iCing
RDCs:
DC
Anisofit
Pseudocontact shifts:
Anisofit
Protein geomtery:
Resolution-by-Proxy
PROSESS
What-If
iCing
PSVS
MolProbity
SAVES2 or SAVES4
Vadar
Prosa
ProQ
MetaMQAPII
PSQS
Eval123D
STAN
Ramachandran Plot
Rampage
ERRAT
Verify_3D
Harmony
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:
camLILA
ccSOL
Camfold
camGroEL
Zyggregator
Isotope labeling:
UPLABEL
Solid-state NMR:
sedNMR


Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
  #1  
Old 04-11-2017, 04:25 AM
nmrlearner's Avatar
Senior Member
 
Join Date: Jan 2005
Posts: 23,777
Points: 193,617, Level: 100
Points: 193,617, Level: 100 Points: 193,617, Level: 100 Points: 193,617, Level: 100
Level up: 0%, 0 Points needed
Level up: 0% Level up: 0% Level up: 0%
Activity: 50.7%
Activity: 50.7% Activity: 50.7% Activity: 50.7%
Last Achievements
Award-Showcase
NMR Credits: 0
NMR Points: 193,617
Downloads: 0
Uploads: 0
Default Field-frequency locked X-band Overhauser effect spectrometer #DNPNMR

From The DNP-NMR Blog:

Field-frequency locked X-band Overhauser effect spectrometer #DNPNMR

This article is already a bit older. However, it nicely illustrates that DNP, specifically ODNP has been around for a while already, and gives some interesting specifics on the instrumentation that are still valid today.


Chandrakumar, N. and P.T. Narasimhan, Field-frequency locked X-band Overhauser effect spectrometer. Review of Scientific Instruments, 1981. 52(4): p. 533-538.


http://dx.doi.org/10.1063/1.1136634


The design and construction of an Overhauser Effect Spectrometer operating at X band is described. The ESR section is a Varian V-4502 spectrometer equipped with a 9-in. electromagnet and a shim coil assembly. NMR detection is based on a broadband rf hybrid juction feeding a coil in an X-band quartz dielectric cavity. Signal processing is carried out at a constant intermediate frequency of 25.1 MHz with a Varian V -4311 fixed frequency rf unit. The mixing scheme employed to translate the NMR information to 25.1 MHz is described. Medium resolution performance (resolution _10-6 ) for the NMR is achieved under field-frequency locked conditions. The lock is based on a Super-Regenerative Oscillator (SRO) housing a control sample, and operating as a field-tracking frequency source. This SRO injects into an oscillator which excites the analytical sample resonance and also serves as a local oscillator, thereby making the locked spectrometer multinuclear in capability. Typical Overhauser effect recordings of protons and fluorines are presented.


p.p1 {margin: 0.0px 0.0px 0.0px 36.0px; text-indent: -36.0px; font: 12.0px Helvetica} p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Helvetica} p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Times} span.s1 {font: 6.0px Times}

Go to The DNP-NMR Blog for more info.
Reply With Quote


Did you find this post helpful? Yes | No

Reply
Similar Threads
Thread Thread Starter Forum Replies Last Post
Correction: Theory of solid effect and cross effect dynamic nuclear polarization with half-integer high-spin metal polarizing agents in rotating solids #DNPNMR
From The DNP-NMR Blog: Correction: Theory of solid effect and cross effect dynamic nuclear polarization with half-integer high-spin metal polarizing agents in rotating solids #DNPNMR p.p1 {margin: 0.0px 0.0px 0.0px 36.0px; text-indent: -36.0px; font: 12.0px Helvetica} Corzilius, B., Correction: Theory of solid effect and cross effect dynamic nuclear polarization with half-integer high-spin metal polarizing agents in rotating solids. Phys. Chem. Chem. Phys., 2016. 18(42): p. 29643-29643. http://dx.doi.org/10.1039/C6CP90249A
nmrlearner News from NMR blogs 0 12-17-2016 07:18 AM
Theory of solid effect and cross effect dynamic nuclear polarization with half-integer high-spin metal polarizing agents in rotating solids #DNPNMR
From The DNP-NMR Blog: Theory of solid effect and cross effect dynamic nuclear polarization with half-integer high-spin metal polarizing agents in rotating solids #DNPNMR p.p1 {margin: 0.0px 0.0px 0.0px 36.0px; text-indent: -36.0px; font: 12.0px Helvetica} Corzilius, B., Theory of solid effect and cross effect dynamic nuclear polarization with half-integer high-spin metal polarizing agents in rotating solids. Phys. Chem. Chem. Phys., 2016. 18(39): p. 27190-27204. http://dx.doi.org/10.1039/C6CP04621E
nmrlearner News from NMR blogs 0 11-21-2016 11:02 PM
A compact X-Band resonator for DNP-enhanced Fast-Field-Cycling NMR #DNPNMR
From The DNP-NMR Blog: A compact X-Band resonator for DNP-enhanced Fast-Field-Cycling NMR #DNPNMR p.p1 {margin: 0.0px 0.0px 0.0px 36.0px; text-indent: -36.0px; font: 12.0px Helvetica} Neudert, O., C. Mattea, and S. Stapf, A compact X-Band resonator for DNP-enhanced Fast-Field-Cycling NMR. J Magn Reson, 2016. 271: p. 7-14. https://www.ncbi.nlm.nih.gov/pubmed/27526396
nmrlearner News from NMR blogs 0 11-19-2016 08:35 PM
L-band Overhauser dynamic nuclear polarization
From The DNP-NMR Blog: L-band Overhauser dynamic nuclear polarization I must have missed that article from 2010, describing L-Band ODNP experiments. This actually looks like a very nice setup that could be used for teaching purposes. Garcia, S., et al., L-band Overhauser dynamic nuclear polarization. J Magn Reson, 2010. 203(1): p. 138-43.
nmrlearner News from NMR blogs 0 12-03-2014 04:05 PM
The Nuclear Overhauser Effect from a Quantitative Perspective
The Nuclear Overhauser Effect from a Quantitative Perspective Publication date: Available online 22 November 2013 Source:Progress in Nuclear Magnetic Resonance Spectroscopy</br> Author(s): Beat Vögeli</br> The nuclear Overhauser enhancement or effect (NOE) is the most important measure in liquid-state NMR with macromolecules. Thus, the NOE is the subject of numerous reviews and books. Here, the NOE is revisited in light of our recently introduced measurements of exact nuclear Overhauser enhancements (eNOEs), which enabled the determination of multiple-state 3D...
nmrlearner Journal club 0 11-22-2013 03:09 PM
DAC-board based X-band EPR spectrometer with arbitrary waveform control
From The DNP-NMR Blog: DAC-board based X-band EPR spectrometer with arbitrary waveform control Some instrumentation that is very interesting.
nmrlearner News from NMR blogs 0 11-21-2013 01:14 AM
[NMR paper] The inter-ligand Overhauser effect: a powerful new NMR approach for mapping structura
The inter-ligand Overhauser effect: a powerful new NMR approach for mapping structural relationships of macromolecular ligands. Related Articles The inter-ligand Overhauser effect: a powerful new NMR approach for mapping structural relationships of macromolecular ligands. J Biomol NMR. 1999 Sep;15(1):71-6 Authors: Li D, DeRose EF, London RE NMR experiments that transfer conformational information from the bound to the uncomplexed state via exchange have been utilized for many years. It is demonstrated here that inter-ligand NOEs ('ILOEs'),...
nmrlearner Journal club 0 11-18-2010 08:31 PM
[NMR paper] A 31P-NMR spin-lattice relaxation and 31P[1H] nuclear Overhauser effect study of soni
A 31P-NMR spin-lattice relaxation and 31P nuclear Overhauser effect study of sonicated small unilamellar phosphatidylcholine vesicles. http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--linkinghub.elsevier.com-ihub-images-PubMedLink.gif Related Articles A 31P-NMR spin-lattice relaxation and 31P nuclear Overhauser effect study of sonicated small unilamellar phosphatidylcholine vesicles. Biochim Biophys Acta. 1992 Feb 17;1104(1):137-46 Authors: Tauskela JS, Thompson M The motional properties of the inner and outer monolayer headgroups of...
nmrlearner Journal club 0 08-21-2010 11:41 PM



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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



BioNMR advertisements to pay for website hosting and domain registration. Nobody does it for us.



Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright, BioNMR.com, 2003-2013
Search Engine Friendly URLs by vBSEO 3.6.0

All times are GMT. The time now is 09:39 AM.


Map