1YOW

human Steroidogenic Factor 1 LBD with bound Co-factor Peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.246 
  • R-Value Observed: 0.250 

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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

Structural analyses reveal phosphatidyl inositols as ligands for the NR5 orphan receptors SF-1 and LRH-1

Krylova, I.N.Sablin, E.P.Xu, R.X.Waitt, G.M.MacKay, J.A.Juzumiene, D.Bynum, J.M.Madauss, K.P.Montana, V.Lebedeva, L.Suzawa, M.Williams, J.D.Williams, S.P.Guy, R.K.Thornton, J.W.Fletterick, R.J.Willson, T.M.Ingraham, H.A.

(2005) Cell 120: 343-355

  • DOI: 10.1016/j.cell.2005.01.024
  • Primary Citation of Related Structures:  
    1YMT, 1YOW, 1YOK

  • PubMed Abstract: 
  • Vertebrate members of the nuclear receptor NR5A subfamily, which includes steroidogenic factor 1 (SF-1) and liver receptor homolog 1 (LRH-1), regulate crucial aspects of development, endocrine homeostasis, and metabolism. Mouse LRH-1 is believed to be a ligand-independent transcription factor with a large and empty hydrophobic pocket ...

    Vertebrate members of the nuclear receptor NR5A subfamily, which includes steroidogenic factor 1 (SF-1) and liver receptor homolog 1 (LRH-1), regulate crucial aspects of development, endocrine homeostasis, and metabolism. Mouse LRH-1 is believed to be a ligand-independent transcription factor with a large and empty hydrophobic pocket. Here we present structural and biochemical data for three other NR5A members-mouse and human SF-1 and human LRH-1-which reveal that these receptors bind phosphatidyl inositol second messengers and that ligand binding is required for maximal activity. Evolutionary analysis of structure-function relationships across the SF-1/LRH-1 subfamily indicates that ligand binding is the ancestral state of NR5A receptors and was uniquely diminished or altered in the rodent LRH-1 lineage. We propose that phospholipids regulate gene expression by directly binding to NR5A nuclear receptors.


    Organizational Affiliation

    Department of Physiology, University of California, San Francisco, California 94143, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Steroidogenic factor 1A242Homo sapiensMutation(s): 0 
Gene Names: NR5A1AD4BPFTZF1SF1
UniProt & NIH Common Fund Data Resources
Find proteins for Q13285 (Homo sapiens)
Explore Q13285 
Go to UniProtKB:  Q13285
PHAROS:  Q13285
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
TIF2 peptideB11N/AMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
P0E (Subject of Investigation/LOI)
Query on P0E

Download Ideal Coordinates CCD File 
C [auth A]PHOSPHATIDYL ETHANOL
C39 H73 O9 P
PGYPLYNHOCZJEB-JSTCSLLMSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.246 
  • R-Value Observed: 0.250 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.335α = 90
b = 73.335β = 90
c = 139.021γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
SCALEPACKdata scaling
SHARPphasing
CNSrefinement
HKL-2000data reduction

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment  



Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2005-05-10
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-01-31
    Changes: Experimental preparation