5JNE

E2-SUMO-Siz1 E3-SUMO-PCNA complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.85 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.211 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

Capturing a substrate in an activated RING E3/E2-SUMO complex.

Streich, F.C.Lima, C.D.

(2016) Nature 536: 304-308

  • DOI: 10.1038/nature19071

  • PubMed Abstract: 
  • Post-translational protein modification by ubiquitin (Ub) and ubiquitin-like (Ubl) proteins such as small ubiquitin-like modifier (SUMO) regulates processes including protein homeostasis, the DNA damage response, and the cell cycle. Proliferating cel ...

    Post-translational protein modification by ubiquitin (Ub) and ubiquitin-like (Ubl) proteins such as small ubiquitin-like modifier (SUMO) regulates processes including protein homeostasis, the DNA damage response, and the cell cycle. Proliferating cell nuclear antigen (PCNA) is modified by Ub or poly-Ub at lysine (Lys)164 after DNA damage to recruit repair factors. Yeast PCNA is modified by SUMO on Lys164 and Lys127 during S-phase to recruit the anti-recombinogenic helicase Srs2. Lys164 modification requires specialized E2/E3 enzyme pairs for SUMO or Ub conjugation. For SUMO, Lys164 modification is strictly dependent on the E3 ligase Siz1, suggesting the E3 alters E2 specificity to promote Lys164 modification. The structural basis for substrate interactions in activated E3/E2–Ub/Ubl complexes remains unclear. Here we report an engineered E2 protein and cross-linking strategies that trap an E3/E2–Ubl/substrate complex for structure determination, illustrating how an E3 can bypass E2 specificity to force-feed a substrate lysine into the E2 active site.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
E3 SUMO-protein ligase SIZ1,Ubiquitin-like protein SMT3
A, E
367Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 1 
Gene Names: SIZ1 (ULL1), SMT3
EC: 2.3.2.-
Find proteins for Q04195 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q04195
Find proteins for Q12306 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q12306
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
SUMO-conjugating enzyme UBC9
B, F
160Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 3 
Gene Names: UBC9
EC: 2.3.2.-
Find proteins for P50623 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P50623
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Ubiquitin-like protein SMT3
C, G
84Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 1 
Gene Names: SMT3
Find proteins for Q12306 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q12306
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Proliferating cell nuclear antigen
D, H
258Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 5 
Gene Names: POL30
Find proteins for P15873 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P15873
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

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

Download SDF File 
Download CCD File 
A, D, E, H
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
6LN
Query on 6LN

Download SDF File 
Download CCD File 
B, F
ethane-1,2-dithiol
C2 H6 S2
VYMPLPIFKRHAAC-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.85 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.211 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 93.421α = 90.00
b = 205.882β = 95.30
c = 142.501γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
PHENIXrefinement
HKL-2000data reduction
PHENIXphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical SciencesUnited StatesGM065872

Revision History 

  • Version 1.0: 2016-08-10
    Type: Initial release
  • Version 1.1: 2016-08-24
    Type: Database references
  • Version 1.2: 2016-08-31
    Type: Database references
  • Version 1.3: 2016-09-21
    Type: Other
  • Version 1.4: 2017-09-20
    Type: Author supporting evidence, Derived calculations