2ALC

ETHANOL REGULON TRANSCRIPTIONAL ACTIVATOR DNA-BINDING DOMAIN FROM ASPERGILLUS NIDULANS


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 17 
  • Conformers Submitted: 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

NMR solution structure of AlcR (1-60) provides insight in the unusual DNA binding properties of this zinc binuclear cluster protein.

Cerdan, R.Cahuzac, B.Felenbok, B.Guittet, E.

(2000) J.Mol.Biol. 295: 729-736

  • DOI: 10.1006/jmbi.1999.3417
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The three-dimensional structure of the DNA-binding domain (residues 1-60) of the ethanol regulon transcription factor AlcR from Aspergillus nidulans has been solved by NMR. This domain belongs to the zinc binuclear cluster class. Although the core of ...

    The three-dimensional structure of the DNA-binding domain (residues 1-60) of the ethanol regulon transcription factor AlcR from Aspergillus nidulans has been solved by NMR. This domain belongs to the zinc binuclear cluster class. Although the core of the protein is similar to previously characterized structures, consisting of two helices organized around a Zn(2)Cys(6 )motif, the present structure presents important variations, among them the presence of two supplementary helices. This structure gives new insight into the understanding of the AlcR specificities in DNA binding such as longer consensus half-sites, in vitro monomeric binding but in vivo multiple repeat transcriptional activation, either in direct or inverse orientations. The presence of additional contacts of the protein with its DNA target can be predicted from a model proposed for the interaction with the consensus DNA target. The clustering of accessible negative charges on helix 2 delineates a possible interaction site for other determinants of the transcriptional machinery, responsible for the fine tuning of the selection of the AlcR cognate sites.


    Organizational Affiliation

    Laboratoire de RMN, ICSN-CNRS, 1 av. de la Terrasse, Gif-sur-Yvette, F-91190, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (ETHANOL REGULON TRANSCRIPTIONAL ACTIVATOR)
A
65Emericella nidulans (strain FGSC A4 / ATCC 38163 / CBS 112.46 / NRRL 194 / M139)Mutation(s): 3 
Gene Names: alcR
Find proteins for P21228 (Emericella nidulans (strain FGSC A4 / ATCC 38163 / CBS 112.46 / NRRL 194 / M139))
Go to UniProtKB:  P21228
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 17 
  • Conformers Submitted: 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-01-21
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance