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, 10:48 PM
nmrlearner's Avatar
Senior Member
 
Join Date: Jan 2005
Posts: 17,583
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 Binding, X-ray and NMR studies of the three A-ring isomers of natural estradiol.

Binding, X-ray and NMR studies of the three A-ring isomers of natural estradiol.

Related Articles Binding, X-ray and NMR studies of the three A-ring isomers of natural estradiol.

J Steroid Biochem. 1990 Feb;35(2):219-29

Authors: Palomino E, Heeg MJ, Horwitz JP, Brooks SC

The effect of the position of the phenolic hydroxyl on the conformations of the three A-ring isomers of estradiol, namely, estra-1,3,5(10)-trien-1,17 beta-diol (10), estra-1,3,5(10)-trien-2,17 beta-diol (3), and estra-1,3,5(10)-trien-4,17 beta-diol (6), has been analyzed by X-ray crystallography. The results of these analyses were correlated with the absorptions of the angular methyl groups in the [1H]NMR spectra of these isomers and natural estradiol (E2). It was observed that the changes in chemical shift of protons at C18 corresponded to skeletal modifications in the steroid structure which changed the anisotropic effect of the hydroxyl group at C17. Examination of the affinity of these A-ring isomers of E2 for the estrogen receptor has shown the 2-hydroxylated isomer 3 to retain 1/5th the affinity of E2 for its binding protein. The 1- and 4-hydroxylated derivatives (10 and 6, respectively) bound to a much lesser extent. The receptor affinities of these estrogen analogues may be related to the angle between the 18-methyl and the 17 beta-hydroxyl groups (or the dihedral angle between the planar A-ring and the angular C18 methyl) as well as the position of the A-ring hydroxyl group.

PMID: 2308337 [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
A natural and readily available crowding agent: NMR studies of proteins in hen egg white.
A natural and readily available crowding agent: NMR studies of proteins in hen egg white. A natural and readily available crowding agent: NMR studies of proteins in hen egg white. Proteins. 2010 Dec 13; Authors: Martorell G, Adrover M, Kelly G, Temussi PA, Pastore A In vitro studies of biological macromolecules are usually performed in dilute, buffered solutions containing one or just a few different biological macromolecules. Under these conditions, the interactions among molecules are diffusion limited. On the contrary, in living systems,...
nmrlearner Journal club 0 02-22-2011 10:40 PM
[NMR tweet] Israel's #Science: Separate water isomers. Benefits: highly sensitive nuclear magnetic resonance (NMR). http://bit.ly/eQifmQ
Israel's #Science: Separate water isomers. Benefits: highly sensitive nuclear magnetic resonance (NMR). http://bit.ly/eQifmQ Published by ActForIsrael (Act for Israel) on 2011-01-20T19:44:20Z Source: Twitter
nmrlearner Twitter NMR 0 01-20-2011 08:02 PM
[NMR tweet] RT @ActForIsrael: Israel's #Science: Separate water isomers. Benefits: highly sensitive nuclear magnetic resonance (NMR). http://bit.ly/eQifmQ
RT @ActForIsrael: Israel's #Science: Separate water isomers. Benefits: highly sensitive nuclear magnetic resonance (NMR). http://bit.ly/eQifmQ Published by eapr9 (eapr9) on 2011-01-20T19:44:44Z Source: Twitter
nmrlearner Twitter NMR 0 01-20-2011 08:02 PM
NMR analysis reveals 17?-estradiol induced conformational change in ER? ligand binding domain expressed in E. coli.
NMR analysis reveals 17?-estradiol induced conformational change in ER? ligand binding domain expressed in E. coli. NMR analysis reveals 17?-estradiol induced conformational change in ER? ligand binding domain expressed in E. coli. Mol Biol Rep. 2010 Dec 12; Authors: Paramanik V, Thakur MK Nuclear magnetic resonance (NMR) spectroscopy is a useful biophysical technique to study the ligand-protein interaction. In this report, we have used bacterially produced ER? and its domains for studying the functional analysis of ligand-protein interaction....
nmrlearner Journal club 0 12-15-2010 12:03 PM
[NMR paper] Over-expression and purification of isotopically labeled recombinant ligand-binding domain of orphan nuclear receptor human B1-binding factor/human liver receptor homologue 1 for NMR studies.
Over-expression and purification of isotopically labeled recombinant ligand-binding domain of orphan nuclear receptor human B1-binding factor/human liver receptor homologue 1 for NMR studies. Related Articles Over-expression and purification of isotopically labeled recombinant ligand-binding domain of orphan nuclear receptor human B1-binding factor/human liver receptor homologue 1 for NMR studies. Protein Expr Purif. 2006 Jan;45(1):99-106 Authors: Chen X, Tong X, Xie Y, Wang Y, Ma J, Gao D, Wu H, Chen H The human hepatitis B virus enhancer II...
nmrlearner Journal club 0 12-01-2010 06:56 PM
[NMR paper] NMR spectroscopic studies of the DNA-binding domain of the monomer-binding nuclear or
NMR spectroscopic studies of the DNA-binding domain of the monomer-binding nuclear orphan receptor, human estrogen related receptor-2. The carboxyl-terminal extension to the zinc-finger region is unstructured in the free form of the protein. http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--highwire.stanford.edu-icons-externalservices-pubmed-standard-jbc_full_free.gif Related Articles NMR spectroscopic studies of the DNA-binding domain of the monomer-binding nuclear orphan receptor, human estrogen related receptor-2. The carboxyl-terminal extension to the zinc-finger region...
nmrlearner Journal club 0 08-22-2010 05:08 PM
[NMR paper] 1H- and natural abundance 15N-NMR studies of a derivative of a rabies glycoprotein fr
1H- and natural abundance 15N-NMR studies of a derivative of a rabies glycoprotein fragment. Related Articles 1H- and natural abundance 15N-NMR studies of a derivative of a rabies glycoprotein fragment. Biopolymers. 1991 May;31(6):713-23 Authors: Molinari H, Consonni R, Pegna M, Zetta L, Neri P, Niccolai N, Bonci A, Lozzi L, Rustici M, Scarselli M Using a combination of one- and two-dimensional methods, 1H- and 15N-nmr spectroscopy has been employed to perform the complete assignment and the structural determination of the immunogenic...
nmrlearner Journal club 0 08-21-2010 11:16 PM


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 03:43 PM.


Map