1BC8

STRUCTURES OF SAP-1 BOUND TO DNA SEQUENCES FROM THE E74 AND C-FOS PROMOTERS PROVIDE INSIGHTS INTO HOW ETS PROTEINS DISCRIMINATE BETWEEN RELATED DNA TARGETS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.93 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.220 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structures of SAP-1 bound to DNA targets from the E74 and c-fos promoters: insights into DNA sequence discrimination by Ets proteins.

Mo, Y.Vaessen, B.Johnston, K.Marmorstein, R.

(1998) Mol.Cell 2: 201-212

  • Primary Citation of Related Structures:  1BC7

  • PubMed Abstract: 
  • SAP-1 is a member of the Ets transcription factors and cooperates with SRF protein to activate transcription of the c-fos protooncogene. The crystal structures of the conserved ETS domain of SAP-1 bound to DNA sequences from the E74 and c-fos promote ...

    SAP-1 is a member of the Ets transcription factors and cooperates with SRF protein to activate transcription of the c-fos protooncogene. The crystal structures of the conserved ETS domain of SAP-1 bound to DNA sequences from the E74 and c-fos promoters reveal that a set of conserved residues contact a GGA core DNA sequence. Discrimination for sequences outside this core is mediated by DNA contacts from conserved and nonconserved protein residues and sequence-dependent DNA structural properties characteristic of A-form DNA structure. Comparison with the related PU.1/DNA and GABPalpha/beta/DNA complexes provides general insights into DNA discrimination between Ets proteins. Modeling studies of a SAP-1/SRF/DNA complex suggest that SRF may modulate SAP-1 binding to DNA by interacting with its ETS domain.


    Organizational Affiliation

    The Wistar Institute, Department of Chemistry, University of Pennsylvania, Philadelphia 19104, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (SAP-1 ETS DOMAIN)
C
93Homo sapiensGene Names: ELK4 (SAP1)
Find proteins for P28324 (Homo sapiens)
Go to Gene View: ELK4
Go to UniProtKB:  P28324
Entity ID: 1
MoleculeChainsLengthOrganism
DNA (5'-D(*TP*AP*CP*CP*GP*GP*AP*AP*GP*T)-3')A10N/A
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (5'-D(*AP*AP*CP*TP*TP*CP*CP*GP*GP*T)-3')B10N/A
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.93 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.220 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 31.590α = 90.00
b = 55.670β = 107.16
c = 44.230γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
PHASESphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-12-01
    Type: Initial release
  • Version 1.1: 2008-05-22
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance