1YP0

Structure of the steroidogenic factor-1 ligand binding domain bound to phospholipid and a SHP peptide motif


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.223 
  • R-Value Observed: 0.223 

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Ligand Structure Quality Assessment 


This is version 1.4 of the entry. See complete history


Literature

Crystallographic identification and functional characterization of phospholipids as ligands for the orphan nuclear receptor steroidogenic factor-1.

Li, Y.Choi, M.Cavey, G.Daugherty, J.Suino, K.Kovach, A.Bingham, N.Kliewer, S.Xu, H.

(2005) Mol Cell 17: 491-502

  • DOI: https://doi.org/10.1016/j.molcel.2005.02.002
  • Primary Citation of Related Structures:  
    1YP0

  • PubMed Abstract: 

    The orphan nuclear receptor steroidogenic factor 1 (SF-1) regulates the differentiation and function of endocrine glands. Although SF-1 is constitutively active in cell-based assays, it is not known whether this transcriptional activity is modulated by ligands. Here, we describe the 1.5 angstroms crystal structure of the SF-1 ligand binding domain in complex with an LXXLL motif from a coregulator protein. The structure reveals the presence of a phospholipid ligand in a surprisingly large pocket (approximately 1600 angstroms3), with the receptor adopting the canonical active conformation. The bound phospholipid is readily exchanged and modulates SF-1 interactions with coactivators. Mutations designed to reduce the size of the SF-1 pocket or to disrupt hydrogen bonds with the phospholipid abolish SF-1/coactivator interactions and significantly reduce SF-1 transcriptional activity. These findings provide evidence that SF-1 is regulated by endogenous ligands and suggest an unexpected relationship between phospholipids and endocrine development and function.


  • Organizational Affiliation

    Laboratory of Structural Sciences, Van Andel Research Institute, 333 Bostwick Avenue, Grand Rapids, MI 49503, USA.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
nuclear receptor subfamily 5, group A, member 1239Mus musculusMutation(s): 0 
UniProt
Find proteins for P33242 (Mus musculus)
Explore P33242 
Go to UniProtKB:  P33242
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP33242
Sequence Annotations
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  • Reference Sequence

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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Nuclear receptor subfamily 0, group B, member 212N/AMutation(s): 0 
UniProt
Find proteins for P97947 (Rattus norvegicus)
Explore P97947 
Go to UniProtKB:  P97947
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP97947
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
PEF
Query on PEF

Download Ideal Coordinates CCD File 
C [auth A]DI-PALMITOYL-3-SN-PHOSPHATIDYLETHANOLAMINE
C37 H74 N O8 P
SLKDGVPOSSLUAI-PGUFJCEWSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.223 
  • R-Value Observed: 0.223 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.175α = 90
b = 73.175β = 90
c = 115.731γ = 90
Software Package:
Software NamePurpose
CNSrefinement
MAR345data collection
SCALEPACKdata scaling
AMoREphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-04-19
    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: 2017-10-11
    Changes: Refinement description
  • Version 1.4: 2024-02-14
    Changes: Data collection, Database references, Derived calculations