5OPX

Crystal structure of the GroEL mutant A109C in complex with GroES and ADP BeF2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.64 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.231 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

GroEL Ring Separation and Exchange in the Chaperonin Reaction.

Yan, X.Shi, Q.Bracher, A.Milicic, G.Singh, A.K.Hartl, F.U.Hayer-Hartl, M.

(2018) Cell 172: 605-617.e11

  • DOI: 10.1016/j.cell.2017.12.010
  • Primary Citation of Related Structures:  5OPW

  • PubMed Abstract: 
  • The bacterial chaperonin GroEL and its cofactor, GroES, form a nano-cage for a single molecule of substrate protein (SP) to fold in isolation. GroEL and GroES undergo an ATP-regulated interaction cycle to close and open the folding cage. GroEL consis ...

    The bacterial chaperonin GroEL and its cofactor, GroES, form a nano-cage for a single molecule of substrate protein (SP) to fold in isolation. GroEL and GroES undergo an ATP-regulated interaction cycle to close and open the folding cage. GroEL consists of two heptameric rings stacked back to back. Here, we show that GroEL undergoes transient ring separation, resulting in ring exchange between complexes. Ring separation occurs upon ATP-binding to the trans ring of the asymmetric GroEL:7ADP:GroES complex in the presence or absence of SP and is a consequence of inter-ring negative allostery. We find that a GroEL mutant unable to perform ring separation is folding active but populates symmetric GroEL:GroES2 complexes, where both GroEL rings function simultaneously rather than sequentially. As a consequence, SP binding and release from the folding chamber is inefficient, and E. coli growth is impaired. We suggest that transient ring separation is an integral part of the chaperonin mechanism.


    Organizational Affiliation

    Department of Cellular Biochemistry, Max Planck Institute of Biochemistry, Am Klopferspitz 18, 82152 Martinsried, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
60 kDa chaperonin
A, B, C, D, E, F, G, H, I, J, K, L, M, N
548Escherichia coli (strain K12)Gene Names: groL (groEL, mopA)
Find proteins for P0A6F5 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A6F5
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
10 kDa chaperonin
1, 2, O, P, Q, R, S, T, U, V, W, X, Y, Z
97Escherichia coli (strain K12)Gene Names: groS (groES, mopB)
Find proteins for P0A6F9 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A6F9
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
K
Query on K

Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, H, I, J, K, L, M, N
POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N
 Ligand Interaction
ADP
Query on ADP

Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, H, I, J, K, L, M, N
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, H, I, J, K, L, M, N
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
BEF
Query on BEF

Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, H, I, J, K, L, M, N
BERYLLIUM TRIFLUORIDE ION
Be F3
OGIAHMCCNXDTIE-UHFFFAOYSA-K
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.64 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.231 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 217.567α = 90.00
b = 230.504β = 90.00
c = 235.391γ = 90.00
Software Package:
Software NamePurpose
Aimlessdata scaling
PDB_EXTRACTdata extraction
REFMACrefinement
XDSdata reduction
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-01-10
    Type: Initial release
  • Version 1.1: 2018-01-24
    Type: Database references
  • Version 1.2: 2018-02-07
    Type: Database references