3BRF

CSL (Lag-1) bound to DNA with Lin-12 RAM peptide, C2221


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.47 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.230 
  • R-Value Observed: 0.232 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

RAM-induced Allostery Facilitates Assembly of a Notch Pathway Active Transcription Complex.

Friedmann, D.R.Wilson, J.J.Kovall, R.A.

(2008) J Biol Chem 283: 14781-14791

  • DOI: 10.1074/jbc.M709501200
  • Primary Citation of Related Structures:  
    3BRD, 3BRF, 3BRG

  • PubMed Abstract: 
  • The Notch pathway is a conserved cell-to-cell signaling mechanism, in which extracellular signals are transduced into transcriptional outputs through the nuclear effector CSL. CSL is converted from a repressor to an activator through the formation of the CSL-NotchIC-Mastermind ternary complex ...

    The Notch pathway is a conserved cell-to-cell signaling mechanism, in which extracellular signals are transduced into transcriptional outputs through the nuclear effector CSL. CSL is converted from a repressor to an activator through the formation of the CSL-NotchIC-Mastermind ternary complex. The RAM (RBP-J associated molecule) domain of NotchIC avidly interacts with CSL; however, its role in assembly of the CSL-NotchIC-Mastermind ternary complex is not understood. Here we provide a comprehensive thermodynamic, structural, and biochemical analysis of the RAM-CSL interaction for components from both mouse and worm. Our binding data show that RAM and CSL form a high affinity complex in the presence or absence of DNA. Our structural studies reveal a striking distal conformational change in CSL upon RAM binding, which creates a docking site for Mastermind to bind to the complex. Finally, we show that the addition of a RAM peptide in trans facilitates formation of the CSL-NotchIC-Mastermind ternary complex in vitro.


    Organizational Affiliation

    Department of Molecular Genetics, Biochemistry and Microbiology, University of Cincinnati College of Medicine, Cincinnati, OH 45267-0524, USA.



Macromolecules

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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Lin-12 and glp-1 phenotype protein 1, isoform aC [auth A]478Caenorhabditis elegansMutation(s): 0 
Gene Names: lag-1
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Protein lin-12D14Caenorhabditis elegansMutation(s): 0 
Gene Names: lin-12R107.8
UniProt
Find proteins for P14585 (Caenorhabditis elegans)
Explore P14585 
Go to UniProtKB:  P14585
Entity Groups  
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UniProt GroupP14585
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Entity ID: 1
MoleculeChainsLengthOrganismImage
DNA (5'-D(*DTP*DTP*DAP*DCP*DTP*DGP*DTP*DGP*DGP*DGP*DAP*DAP*DAP*DGP*DA)-3')A [auth B]15N/A
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Entity ID: 2
MoleculeChainsLengthOrganismImage
DNA (5'-D(*DAP*DAP*DTP*DCP*DTP*DTP*DTP*DCP*DCP*DCP*DAP*DCP*DAP*DGP*DT)-3')B [auth C]15N/A
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SOR
Query on SOR

Download Ideal Coordinates CCD File 
E [auth A],
F [auth A]
sorbitol
C6 H14 O6
FBPFZTCFMRRESA-JGWLITMVSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.47 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.230 
  • R-Value Observed: 0.232 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 62.944α = 90
b = 95.972β = 90
c = 223.63γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2008-04-01
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-10-25
    Changes: Refinement description
  • Version 1.3: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Database references, Derived calculations, Structure summary