4IFD

Crystal structure of an 11-subunit eukaryotic exosome complex bound to RNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.805 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.182 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure of an RNA-bound 11-subunit eukaryotic exosome complex.

Makino, D.L.Baumgartner, M.Conti, E.

(2013) Nature 495: 70-75

  • DOI: 10.1038/nature11870

  • PubMed Abstract: 
  • The exosome is the major 3'-5' RNA-degradation complex in eukaryotes. The ubiquitous core of the yeast exosome (Exo-10) is formed by nine catalytically inert subunits (Exo-9) and a single active RNase, Rrp44. In the nucleus, the Exo-10 core recruits ...

    The exosome is the major 3'-5' RNA-degradation complex in eukaryotes. The ubiquitous core of the yeast exosome (Exo-10) is formed by nine catalytically inert subunits (Exo-9) and a single active RNase, Rrp44. In the nucleus, the Exo-10 core recruits another nuclease, Rrp6. Here we crystallized an approximately 440-kilodalton complex of Saccharomyces cerevisiae Exo-10 bound to a carboxy-terminal region of Rrp6 and to an RNA duplex with a 3'-overhang of 31 ribonucleotides. The 2.8 Å resolution structure shows how RNA is funnelled into the Exo-9 channel in a single-stranded conformation by an unwinding pore. Rrp44 adopts a closed conformation and captures the RNA 3'-end that exits from the side of Exo-9. Exo-9 subunits bind RNA with sequence-unspecific interactions reminiscent of archaeal exosomes. The substrate binding and channelling mechanisms of 3'-5' RNA degradation complexes are conserved in all kingdoms of life.


    Organizational Affiliation

    Department of Structural Cell Biology, MPI for Biochemistry, Am Klopferspitz 18, 82152 Martinsried, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Exosome complex component RRP45
A
304Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: RRP45
Find proteins for Q05636 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q05636
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Exosome complex component SKI6
B
248Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: SKI6 (ECM20, RRP41)
Find proteins for P46948 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P46948
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Exosome complex component RRP43
C
393Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutations: S101A, M362V
Gene Names: RRP43
Find proteins for P25359 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P25359
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Exosome complex component RRP46
D
245Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: RRP46
Find proteins for P53256 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P53256
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
Exosome complex component RRP42
E
267Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutations: I140V
Gene Names: RRP42
Find proteins for Q12277 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q12277
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
Exosome complex component MTR3
F
250Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutations: T161M, S75T
Gene Names: MTR3
Find proteins for P48240 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P48240
Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
Exosome complex component RRP40
G
242Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: RRP40
Find proteins for Q08285 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q08285
Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
Exosome complex component RRP4
H
361Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: RRP4
Find proteins for P38792 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P38792
Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
Exosome complex component CSL4
I
301Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: CSL4 (SKI4)
Find proteins for P53859 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P53859
Entity ID: 10
MoleculeChainsSequence LengthOrganismDetails
Exosome complex exonuclease DIS3
J
1003Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutations: N553D, N173D
Gene Names: DIS3 (RRP44)
EC: 3.1.13.-, 3.1.26.-
Find proteins for Q08162 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: DIS3
Go to UniProtKB:  Q08162
Entity ID: 11
MoleculeChainsSequence LengthOrganismDetails
Exosome complex exonuclease RRP6
K
179Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: RRP6 (UNC733)
EC: 3.1.13.-
Find proteins for Q12149 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q12149
Entity ID: 12
MoleculeChainsLengthOrganism
RNA (45-MER)R45N/A
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
J
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
C, G, H
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
BR
Query on BR

Download SDF File 
Download CCD File 
A, E, F, H, I, J
BROMIDE ION
Br
CPELXLSAUQHCOX-UHFFFAOYSA-M
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
J
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
MES
Query on MES

Download SDF File 
Download CCD File 
G
2-(N-MORPHOLINO)-ETHANESULFONIC ACID
C6 H13 N O4 S
SXGZJKUKBWWHRA-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.805 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.182 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 154.090α = 90.00
b = 107.440β = 110.63
c = 150.460γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
XDSdata reduction
RemDAqdata collection
XSCALEdata scaling
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-02-06
    Type: Initial release
  • Version 1.1: 2013-03-13
    Type: Database references
  • Version 1.2: 2013-11-13
    Type: Database references
  • Version 1.3: 2017-11-15
    Type: Refinement description