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



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  
Unread 08-21-2010, 11:16 PM
nmrlearner's Avatar
Senior Member
 
Join Date: Jan 2005
Posts: 17,582
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 Tritium NMR spectroscopy of ligand binding to maltose-binding protein.

Tritium NMR spectroscopy of ligand binding to maltose-binding protein.

Related Articles Tritium NMR spectroscopy of ligand binding to maltose-binding protein.

Biochemistry. 1991 Jun 4;30(22):5524-31

Authors: Gehring K, Williams PG, Pelton JG, Morimoto H, Wemmer DE

Tritium-labeled alpha- and beta-maltodextrins have been used to study their complexes with maltose-binding protein (MBP), a 40-kDa bacterial protein. Five substrates, from maltose to maltohexaose, were labeled at their reducing ends and their binding studied. Tritium NMR spectroscopy of the labeled sugars showed large upfield chemical shift changes upon binding and strong anomeric specificity. At 10 degrees C, MBP bound alpha-maltose with 2.7 +/- 0.5-fold higher affinity than beta-maltose, and, for longer maltodextrins, the ratio of affinities (KD beta/KD alpha) was even larger (between 10 and 30). The maximum chemical shift change was 2.2 ppm, suggesting that the reducing end of bound alpha-maltodextrin makes close contact with an aromatic residue in the MBP-binding site. Experiments with maltotriose (and longer maltodextrins) also revealed the presence of two bound beta-maltotriose resonances in rapid exchange. We interpret these two resonances as arising from two distinct sugar-protein complexes. In one complex, the beta-maltodextrin is bound by its reducing end, and, in the other complex, the beta-maltodextrin is bound by the middle glucose residue(s). This interpretation also suggests how MBP is able to bind both linear and circular maltodextrins.

PMID: 2036421 [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
Site-specific free energy changes in proteins upon ligand binding by NMR: Ca(2+) -displacement by Ln(3+) in a Ca(2+) -binding protein from Entamoeba histolytica.
Site-specific free energy changes in proteins upon ligand binding by NMR: Ca(2+) -displacement by Ln(3+) in a Ca(2+) -binding protein from Entamoeba histolytica. Site-specific free energy changes in proteins upon ligand binding by NMR: Ca(2+) -displacement by Ln(3+) in a Ca(2+) -binding protein from Entamoeba histolytica. Chem Biol Drug Des. 2011 Jan 14; Authors: Chandra K, Mustafi SM, Muthukumar S, Chary KV The study of protein-ligand interaction has been of a great interest in contemporary structural biology. The understanding of the nature...
nmrlearner Journal club 0 01-18-2011 10:22 PM
[NMR paper] The energetic cost of domain reorientation in maltose-binding protein as studied by N
The energetic cost of domain reorientation in maltose-binding protein as studied by NMR and fluorescence spectroscopy. Related Articles The energetic cost of domain reorientation in maltose-binding protein as studied by NMR and fluorescence spectroscopy. Proc Natl Acad Sci U S A. 2003 Oct 28;100(22):12700-5 Authors: Millet O, Hudson RP, Kay LE Maltose-binding protein (MBP) is a two-domain protein that undergoes a ligand-mediated conformational rearrangement from an "open" to a "closed" structure on binding to maltooligosaccharides. To...
nmrlearner Journal club 0 11-24-2010 09:16 PM
[NMR paper] NMR spectroscopy techniques for screening and identifying ligand binding to protein r
NMR spectroscopy techniques for screening and identifying ligand binding to protein receptors. Related Articles NMR spectroscopy techniques for screening and identifying ligand binding to protein receptors. Angew Chem Int Ed Engl. 2003 Feb 24;42(8):864-90 Authors: Meyer B, Peters T Binding events of ligands to receptors are the key for an understanding of biological processes. Gaining insight into protein-protein and protein-ligand interactions in solution has recently become possible on an atomic level by new NMR spectroscopic techniques....
nmrlearner Journal club 0 11-24-2010 09:01 PM
[NMR paper] Detection of a conformational change in maltose binding protein by (129)Xe NMR spectr
Detection of a conformational change in maltose binding protein by (129)Xe NMR spectroscopy. Related Articles Detection of a conformational change in maltose binding protein by (129)Xe NMR spectroscopy. J Am Chem Soc. 2001 Sep 5;123(35):8616-7 Authors: Rubin SM, Spence MM, Dimitrov IE, Ruiz EJ, Pines A, Wemmer DE
nmrlearner Journal club 0 11-19-2010 08:44 PM
[NMR paper] An NMR study of ligand binding by maltodextrin binding protein.
An NMR study of ligand binding by maltodextrin binding protein. Related Articles An NMR study of ligand binding by maltodextrin binding protein. Biochem Cell Biol. 1998;76(2-3):189-97 Authors: Gehring K, Zhang X, Hall J, Nikaido H, Wemmer DE Proton NMR spectra of maltodextrin binding protein from Escherichia coli were used to monitor conformational changes that accompany ligand binding. Chemical shift changes associated with the binding of different maltodextrins to maltodextrin binding protein were studied using one-dimensional difference...
nmrlearner Journal club 0 11-17-2010 11:06 PM
[NMR paper] Ligand binding alters the backbone mobility of intestinal fatty acid-binding protein
Ligand binding alters the backbone mobility of intestinal fatty acid-binding protein as monitored by 15N NMR relaxation and 1H exchange. http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--pubs.acs.org-images-acspubs.jpg Related Articles Ligand binding alters the backbone mobility of intestinal fatty acid-binding protein as monitored by 15N NMR relaxation and 1H exchange. Biochemistry. 1997 Feb 25;36(8):2278-90 Authors: Hodsdon ME, Cistola DP The backbone dynamics of the liganded (holo) and unliganded (apo) forms of Escherichia...
nmrlearner Journal club 0 08-22-2010 03:31 PM
[NMR paper] Ligand binding alters the backbone mobility of intestinal fatty acid-binding protein
Ligand binding alters the backbone mobility of intestinal fatty acid-binding protein as monitored by 15N NMR relaxation and 1H exchange. http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--pubs.acs.org-images-acspubs.jpg Related Articles Ligand binding alters the backbone mobility of intestinal fatty acid-binding protein as monitored by 15N NMR relaxation and 1H exchange. Biochemistry. 1997 Feb 25;36(8):2278-90 Authors: Hodsdon ME, Cistola DP The backbone dynamics of the liganded (holo) and unliganded (apo) forms of Escherichia...
nmrlearner Journal club 0 08-22-2010 03:03 PM
[NMR paper] An investigation of the ligand-binding site of the glutamine-binding protein of Esche
An investigation of the ligand-binding site of the glutamine-binding protein of Escherichia coli using rotational-echo double-resonance NMR. Related Articles An investigation of the ligand-binding site of the glutamine-binding protein of Escherichia coli using rotational-echo double-resonance NMR. Biochemistry. 1994 Jul 26;33(29):8651-61 Authors: Hing AW, Tjandra N, Cottam PF, Schaefer J, Ho C Glutamine-binding protein (GlnBP) is an essential component of the glutamine transport system in Escherichia coli. Rotational-echo double-resonance...
nmrlearner Journal club 0 08-22-2010 03:29 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This 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



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



Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2017, 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 11:29 AM.


Map