1BC7

SERUM RESPONSE FACTOR ACCESSORY PROTEIN 1A (SAP-1)/DNA COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.01 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.222 

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:  1BC8

  • 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 (ETS-DOMAIN PROTEIN)
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(*GP*AP*CP*AP*GP*GP*AP*TP*GP*TP*G)-3')A11N/A
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (5'-D(*CP*AP*CP*AP*TP*CP*CP*TP*GP*TP*C)-3')B11N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.01 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.222 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 34.503α = 90.00
b = 62.306β = 107.17
c = 38.865γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
AMoREphasing
X-PLORrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-01-21
    Type: Initial release
  • Version 1.1: 2008-05-22
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance