6BVL

Ras:SOS:Ras in complex with a small molecule activator


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.171 
  • R-Value Work: 0.157 
  • R-Value Observed: 0.158 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Discovery of Aminopiperidine Indoles That Activate the Guanine Nucleotide Exchange Factor SOS1 and Modulate RAS Signaling.

Abbott, J.R.Hodges, T.R.Daniels, R.N.Patel, P.A.Kennedy, J.P.Howes, J.E.Akan, D.T.Burns, M.C.Sai, J.Sobolik, T.Beesetty, Y.Lee, T.Rossanese, O.W.Phan, J.Waterson, A.G.Fesik, S.W.

(2018) J Med Chem 61: 6002-6017

  • DOI: 10.1021/acs.jmedchem.8b00360
  • Primary Citation of Related Structures:  
    6BVI, 6BVK, 6BVJ, 6BVM, 6BVL

  • PubMed Abstract: 
  • Deregulated RAS activity, often the result of mutation, is implicated in approximately 30% of all human cancers. Despite this statistic, no clinically successful treatment for RAS-driven tumors has yet been developed. One approach for modulating RAS ...

    Deregulated RAS activity, often the result of mutation, is implicated in approximately 30% of all human cancers. Despite this statistic, no clinically successful treatment for RAS-driven tumors has yet been developed. One approach for modulating RAS activity is to target and affect the activity of proteins that interact with RAS, such as the guanine nucleotide exchange factor (GEF) son of sevenless homologue 1 (SOS1). Here, we report on structure-activity relationships (SAR) in an indole series of compounds. Using structure-based design, we systematically explored substitution patterns on the indole nucleus, the pendant amino acid moiety, and the linker unit that connects these two fragments. Best-in-class compounds activate the nucleotide exchange process at submicromolar concentrations in vitro, increase levels of active RAS-GTP in HeLa cells, and elicit signaling changes in the mitogen-activated protein kinase-extracellular regulated kinase (MAPK-ERK) pathway, resulting in a decrease in pERK1/2 T202/Y204 protein levels at higher compound concentrations.


    Related Citations: 
    • Approach for targeting Ras with small molecules that activate SOS-mediated nucleotide exchange.
      Burns, M.C., Sun, Q., Daniels, R.N., Camper, D., Kennedy, J.P., Phan, J., Olejniczak, E.T., Lee, T., Waterson, A.G., Rossanese, O.W., Fesik, S.W.
      (2014) Proc Natl Acad Sci U S A 111: 3401

    Organizational Affiliation

    Department of Chemistry , Vanderbilt University , Nashville , Tennessee 37232-0146 , United States.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
GTPase HRASA167Homo sapiensMutation(s): 1 
Gene Names: HRASHRAS1
EC: 3.6.5.2
Find proteins for P01112 (Homo sapiens)
Explore P01112 
Go to UniProtKB:  P01112
NIH Common Fund Data Resources
PHAROS  P01112
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Son of sevenless homolog 1B482Homo sapiensMutation(s): 0 
Gene Names: SOS1
Find proteins for Q07889 (Homo sapiens)
Explore Q07889 
Go to UniProtKB:  Q07889
NIH Common Fund Data Resources
PHAROS  Q07889
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
GTPase HRasC167Homo sapiensMutation(s): 0 
Gene Names: HRASHRAS1
EC: 3.6.5.2
Find proteins for P01112 (Homo sapiens)
Explore P01112 
Go to UniProtKB:  P01112
NIH Common Fund Data Resources
PHAROS  P01112
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 6 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GNP
Query on GNP

Download Ideal Coordinates CCD File 
A
PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER
C10 H17 N6 O13 P3
UQABYHGXWYXDTK-UUOKFMHZSA-N
 Ligand Interaction
EBY
Query on EBY

Download Ideal Coordinates CCD File 
B
N-{1-[(5-chloro-1H-indol-3-yl)methyl]piperidin-4-yl}-5-methyl-L-tryptophanamide
C26 H30 Cl N5 O
ORZWUMKDZDLNTJ-QHCPKHFHSA-N
 Ligand Interaction
GOL
Query on GOL

Download Ideal Coordinates CCD File 
B
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
FMT
Query on FMT

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B, C
FORMIC ACID
C H2 O2
BDAGIHXWWSANSR-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

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A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
NA
Query on NA

Download Ideal Coordinates CCD File 
C
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CSO
Query on CSO
AL-PEPTIDE LINKINGC3 H7 N O3 SCYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.171 
  • R-Value Work: 0.157 
  • R-Value Observed: 0.158 
  • Space Group: I 4 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 184.209α = 90
b = 184.209β = 90
c = 179.093γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Lustgarden FoundationUnited States--

Revision History 

  • Version 1.0: 2018-10-24
    Type: Initial release
  • Version 1.1: 2019-05-01
    Changes: Data collection, Database references
  • Version 1.2: 2019-05-29
    Changes: Data collection