3LDQ

Crystal structure of HSC70/BAG1 in complex with small molecule inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.203 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Adenosine-Derived Inhibitors of 78 kDa Glucose Regulated Protein (Grp78) ATPase: Insights into Isoform Selectivity.

Macias, A.T.Williamson, D.S.Allen, N.Borgognoni, J.Clay, A.Daniels, Z.Dokurno, P.Drysdale, M.J.Francis, G.L.Graham, C.J.Howes, R.Matassova, N.Murray, J.B.Parsons, R.Shaw, T.Surgenor, A.E.Terry, L.Wang, Y.Wood, M.Massey, A.J.

(2011) J.Med.Chem. 54: 4034-4041

  • DOI: 10.1021/jm101625x
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • 78 kDa glucose-regulated protein (Grp78) is a heat shock protein (HSP) involved in protein folding that plays a role in cancer cell proliferation. Binding of adenosine-derived inhibitors to Grp78 was characterized by surface plasmon resonance and iso ...

    78 kDa glucose-regulated protein (Grp78) is a heat shock protein (HSP) involved in protein folding that plays a role in cancer cell proliferation. Binding of adenosine-derived inhibitors to Grp78 was characterized by surface plasmon resonance and isothermal titration calorimetry. The most potent compounds were 13 (VER-155008) with K(D) = 80 nM and 14 with K(D) = 60 nM. X-ray crystal structures of Grp78 bound to ATP, ADPnP, and adenosine derivative 10 revealed differences in the binding site between Grp78 and homologous proteins.


    Organizational Affiliation

    Vernalis (R&D) Ltd., Granta Park, Great Abington, Cambridge, CB21 6GB, UK. a.macias@vernalis.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Heat shock cognate 71 kDa protein
A
381Homo sapiensMutation(s): 0 
Gene Names: HSPA8 (HSC70, HSP73, HSPA10)
Find proteins for P11142 (Homo sapiens)
Go to Gene View: HSPA8
Go to UniProtKB:  P11142
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
BAG family molecular chaperone regulator 1
B
114Homo sapiensMutation(s): 0 
Gene Names: BAG1 (HAP)
Find proteins for Q99933 (Homo sapiens)
Go to Gene View: BAG1
Go to UniProtKB:  Q99933
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
3P1
Query on 3P1

Download SDF File 
Download CCD File 
A
8-[(quinolin-2-ylmethyl)amino]adenosine
C20 H21 N7 O4
NAHSCHKAPXMNFP-NVQRDWNXSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
3P1Ki: 4320 nM (88) BINDINGDB
3P1Kd: 2410 nM BINDINGMOAD
3P1Ki: 4320 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.203 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 40.774α = 90.00
b = 121.995β = 106.88
c = 54.250γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
HKL-2000data scaling
HKL-2000data reduction
MxCuBEdata collection
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-01-26
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance