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

Go Back   BioNMR > Educational resources > Journal club
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 11-24-2010, 10:01 PM
nmrlearner's Avatar
Senior Member
 
Join Date: Jan 2005
Posts: 23,733
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 Gated electron transfers and electron pathways in azurin: a NMR dynamic study at mult

Gated electron transfers and electron pathways in azurin: a NMR dynamic study at multiple fields and temperatures.

Related Articles Gated electron transfers and electron pathways in azurin: a NMR dynamic study at multiple fields and temperatures.

J Mol Biol. 2004 Oct 1;342(5):1599-611

Authors: Zhuravleva AV, Korzhnev DM, Kupce E, Arseniev AS, Billeter M, Orekhov VY

Dynamic properties of electron transfer pathways in a small blue copper cupredoxin are explored using an extensive 15N NMR relaxation study of reduced Pseudomonas aeruginosa azurin at four magnetic fields (500-900 MHz) and at two temperatures chosen well below the melting point of the protein. Following a careful model-free analysis, several protein regions with different dynamic regimes are identified. Nanosecond time-scale mobility characterizes various residues of the hydrophobic surface patch believed to mark the natural entry point for electrons, notably the surface-exposed copper-ligand His117. These findings are consistent with a gated electron transfer process according to the "dynamic docking" model. Residues 47-49 along intramolecular pathways of electrons show rigidity that is remarkably conserved when increasing the temperature. Three different conformational exchange processes were observed in the millisecond range, one near the only disulfide bridge in the molecule and two near the copper ion. The latter two processes are consistent with previous data such as crystal structures at various pH values and NMR relaxation dispersion experiments; they may indicate an additional gated electron transfer mechanism at slower time-scales.

PMID: 15364584 [PubMed - indexed for MEDLINE]



Source: PubMed
Reply With Quote


Did you find this post helpful? Yes | No

Reply
Similar Threads
Thread Thread Starter Forum Replies Last Post
Effect of Freezing Conditions on Distances and Their Distributions Derived from Double Electron Electron Resonance (DEER): A Study of Doubly-Spin-Labeled T4 Lysozyme
Effect of Freezing Conditions on Distances and Their Distributions Derived from Double Electron Electron Resonance (DEER): A Study of Doubly-Spin-Labeled T4 Lysozyme Publication year: 2012 Source: Journal of Magnetic Resonance, Available online 24 January 2012</br> Elka R.*Georgieva, Aritro S.*Roy, Vladimir M.*Grigoryants, Petr P.*Borbat, Keith A.*Earle, ...</br> Pulsed dipolar ESR spectroscopy, DEER and DQC, require frozen samples. An important issue in the biological application of this technique is how the freezing rate and concentration of cryoprotectant could possibly affect the...
nmrlearner Journal club 0 01-25-2012 08:56 AM
[Stan NMR blog] Electron MR in Poland: a free collection of papers
Electron MR in Poland: a free collection of papers An open-access set of 50+ EPR papers published in 'Current Topics in Biophysics' Source: Stan blog library
nmrlearner News from NMR blogs 0 12-09-2010 10:44 PM
[NMR paper] The dynamic properties of the M121H azurin metal site as studied by NMR of the parama
The dynamic properties of the M121H azurin metal site as studied by NMR of the paramagnetic Cu(II) and Co(II) metalloderivatives. Related Articles The dynamic properties of the M121H azurin metal site as studied by NMR of the paramagnetic Cu(II) and Co(II) metalloderivatives. J Biol Chem. 1998 Jan 2;273(1):177-85 Authors: Salgado J, Kroes SJ, Berg A, Moratal JM, Canters GW The M121H azurin mutant in solution presents various species in equilibrium that can be detected and studied by 1H NMR of the Cu(II) and Co(II) paramagnetic...
nmrlearner Journal club 0 11-17-2010 11:06 PM
[Stan NMR blog] Polish Electron Magnetic Resonance
Polish Electron Magnetic Resonance Polish EPR Society becomes Polish EMR Group Source: Stan blog library
nmrlearner News from NMR blogs 0 10-22-2010 07:34 AM
[NMR paper] Characterisation of the electron self-exchange rates in hexametaphosphate-cytochrome-
Characterisation of the electron self-exchange rates in hexametaphosphate-cytochrome-c aggregates measured using high-resolution 1H-NMR spectroscopy. http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www3.interscience.wiley.com-aboutus-images-wiley_interscience_pubmed_logo_FREE_120x27.gif Related Articles Characterisation of the electron self-exchange rates in hexametaphosphate-cytochrome-c aggregates measured using high-resolution 1H-NMR spectroscopy. Eur J Biochem. 1991 Aug 1;199(3):553-60 Authors: Concar DW, Whitford D, Williams RJ ...
nmrlearner Journal club 0 08-21-2010 11:12 PM
[NMR paper] Characterisation of the electron self-exchange rates in hexametaphosphate-cytochrome-
Characterisation of the electron self-exchange rates in hexametaphosphate-cytochrome-c aggregates measured using high-resolution 1H-NMR spectroscopy. http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www3.interscience.wiley.com-aboutus-images-wiley_interscience_pubmed_logo_FREE_120x27.gif Related Articles Characterisation of the electron self-exchange rates in hexametaphosphate-cytochrome-c aggregates measured using high-resolution 1H-NMR spectroscopy. Eur J Biochem. 1991 Aug 1;199(3):553-60 Authors: Concar DW, Whitford D, Williams RJ ...
nmrlearner Journal club 0 08-21-2010 11:12 PM
[Stan NMR blog] Books about ESR (Electron Spin Resonance, EPR)
Books about ESR (Electron Spin Resonance, EPR) BOOKS LIST: A nearly complete collection with links to Amazon. More...
nmrlearner News from NMR blogs 0 08-21-2010 06:14 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 On
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 04:09 PM.


Map