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, 11:12 PM
nmrlearner's Avatar
Senior Member
 
Join Date: Jan 2005
Posts: 17,589
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 Architectural rules of the zinc-finger motif: comparative two-dimensional NMR studies

Architectural rules of the zinc-finger motif: comparative two-dimensional NMR studies of native and "aromatic-swap" domains define a "weakly polar switch".

Related Articles Architectural rules of the zinc-finger motif: comparative two-dimensional NMR studies of native and "aromatic-swap" domains define a "weakly polar switch".

Proc Natl Acad Sci U S A. 1991 Oct 1;88(19):8455-9

Authors: Kochoyan M, Keutmann HT, Weiss MA

The Zn-finger motif, encoding a globular minidomain with characteristic structure, provides a striking example of a sequence template for protein folding. Insight into architectural rules relating the amino acid sequence of a protein to its structure and stability may be obtained by comparative study of analogues. As our first step toward defining such rules for the Zn finger, we have recently described the design of an "aromatic-swap" analogue based on the ZFY two-finger repeat: a conserved alternation in sequence pattern observed among odd- and even-numbered domains in a family of sex-related vertebrate transcription factors. Consensus and "swapped" aromatic residues, introduced as revertants of less stable "aromaticless" analogues, were observed to provide equivalent contributions to the thermodynamic stability of the Zn finger. Here we describe and compare the solution structures of a wild-type domain and an aromatic-swap analogue, as determined by two-dimensional NMR and distance-geometry/restrained molecular dynamics calculations. The wild-type and aromatic-swap analogue each contain an N-terminal beta-sheet and a C-terminal alpha-helix (beta beta alpha motif), as observed in other systems, and exhibit a highly ordered hydrophobic core in which the native or swapped aromatic ring is closely packed. Remarkably, however, the two structures are stabilized by alternative aromatic-aromatic interactions, which in turn alter the respective DNA-binding surfaces. Our results suggest that native and swapped Zn-finger sequences encode a "weakly polar switch" between thermodynamically equivalent but functionally distinct architectures for DNA recognition.

PMID: 1924304 [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
[NMR paper] Structure of the His44 --> Ala single point mutant of the distal finger motif of HIV-
Structure of the His44 --> Ala single point mutant of the distal finger motif of HIV-1 nucleocapsid protein: a combined NMR, molecular dynamics simulation, and fluorescence study. Related Articles Structure of the His44 --> Ala single point mutant of the distal finger motif of HIV-1 nucleocapsid protein: a combined NMR, molecular dynamics simulation, and fluorescence study. Biochemistry. 2004 Jun 22;43(24):7687-97 Authors: Stote RH, Kellenberger E, Muller H, Bombarda E, Roques BP, Kieffer B, Mély Y The nucleocapsid protein (NCp7) of human...
nmrlearner Journal club 0 11-24-2010 09:51 PM
[NMR paper] NMR and molecular dynamics studies of the hydration of a zinc finger-DNA complex.
NMR and molecular dynamics studies of the hydration of a zinc finger-DNA complex. Related Articles NMR and molecular dynamics studies of the hydration of a zinc finger-DNA complex. J Mol Biol. 2000 Oct 6;302(5):1101-17 Authors: Tsui V, Radhakrishnan I, Wright PE, Case DA The hydration of a high-affinity protein-DNA complex involving the three amino terminal zinc finger domains of transcription factor IIIA (TFIIIA) and a 15-base-pair DNA duplex was investigated by NMR spectroscopy and molecular dynamics (MD) simulations. Intermolecular nuclear...
nmrlearner Journal club 0 11-19-2010 08:29 PM
[NMR paper] NMR studies of metal ion binding to the Zn-finger-like HNH motif of colicin E9.
NMR studies of metal ion binding to the Zn-finger-like HNH motif of colicin E9. Related Articles NMR studies of metal ion binding to the Zn-finger-like HNH motif of colicin E9. J Inorg Biochem. 2000 Apr;79(1-4):365-70 Authors: Hannan JP, Whittaker SB, Hemmings AM, James R, Kleanthous C, Moore GR The 134 amino acid DNase domain of colicin E9 contains a zinc-finger-like HNH motif that binds divalent transition metal ions. We have used 1D 1H and 2D 1H-15N NMR methods to characterise the binding of Co2+, Ni2+ and Zn2+ to this protein. Data for the...
nmrlearner Journal club 0 11-18-2010 09:15 PM
[NMR paper] NMR chemical shift perturbation mapping of DNA binding by a zinc-finger domain from t
NMR chemical shift perturbation mapping of DNA binding by a zinc-finger domain from the yeast transcription factor ADR1. http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www3.interscience.wiley.com-aboutus-images-wiley_interscience_pubmed_logo_FREE_120x27.gif http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www.pubmedcentral.nih.gov-corehtml-pmc-pmcgifs-pubmed-pmc.gif Related Articles NMR chemical shift perturbation mapping of DNA binding by a zinc-finger domain from the yeast transcription factor ADR1. Protein Sci. 1997 Sep;6(9):1835-48 ...
nmrlearner Journal club 0 08-22-2010 05:08 PM
[NMR paper] Replacement of His23 by Cys in a zinc finger of HIV-1 NCp7 led to a change in 1H NMR-
Replacement of His23 by Cys in a zinc finger of HIV-1 NCp7 led to a change in 1H NMR-derived 3D structure and to a loss of biological activity. http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--linkinghub.elsevier.com-ihub-images-PubMedLink.gif Related Articles Replacement of His23 by Cys in a zinc finger of HIV-1 NCp7 led to a change in 1H NMR-derived 3D structure and to a loss of biological activity. FEBS Lett. 1993 Sep 27;331(1-2):43-8 Authors: Julian N, Demene H, Morellet N, Maigret B, Roques BP The nucleocapsid protein NCp7 of human...
nmrlearner Journal club 0 08-22-2010 03:01 AM
[NMR paper] Zinc- and sequence-dependent binding to nucleic acids by the N-terminal zinc finger o
Zinc- and sequence-dependent binding to nucleic acids by the N-terminal zinc finger of the HIV-1 nucleocapsid protein: NMR structure of the complex with the Psi-site analog, dACGCC. http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www3.interscience.wiley.com-aboutus-images-wiley_interscience_pubmed_logo_FREE_120x27.gif http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www.pubmedcentral.nih.gov-corehtml-pmc-pmcgifs-pubmed-pmc.gif Related Articles Zinc- and sequence-dependent binding to nucleic acids by the N-terminal zinc finger of the HIV-1 nucleocapsid protein: NMR...
nmrlearner Journal club 0 08-21-2010 11:53 PM
[NMR paper] Two-dimensional NMR studies of the zinc finger motif: solution structures and dynamic
Two-dimensional NMR studies of the zinc finger motif: solution structures and dynamics of mutant ZFY domains containing aromatic substitutions in the hydrophobic core. Related Articles Two-dimensional NMR studies of the zinc finger motif: solution structures and dynamics of mutant ZFY domains containing aromatic substitutions in the hydrophobic core. Biochemistry. 1992 Aug 25;31(33):7463-76 Authors: Qian X, Weiss MA Solution structures of mutant Zn fingers containing aromatic substitutions in the hydrophobic core are determined by 2D-NMR...
nmrlearner Journal club 0 08-21-2010 11:45 PM
[NMR paper] Architectural rules of the zinc-finger motif: comparative two-dimensional NMR studies
Architectural rules of the zinc-finger motif: comparative two-dimensional NMR studies of native and "aromatic-swap" domains define a "weakly polar switch". http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www.pubmedcentral.nih.gov-corehtml-pmc-pmcgifs-pubmed-pmc.gif Related Articles Architectural rules of the zinc-finger motif: comparative two-dimensional NMR studies of native and "aromatic-swap" domains define a "weakly polar switch". Proc Natl Acad Sci U S A. 1991 Oct 1;88(19):8455-9 Authors: Kochoyan M, Keutmann HT, Weiss MA The...
nmrlearner Journal club 0 08-21-2010 11:12 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 08:02 AM.


Map