3HTK

Crystal structure of Mms21 and Smc5 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.31 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.256 
  • R-Value Observed: 0.257 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural and functional insights into the roles of the Mms21 subunit of the Smc5/6 complex.

Duan, X.Sarangi, P.Liu, X.Rangi, G.K.Zhao, X.Ye, H.

(2009) Mol Cell 35: 657-668

  • DOI: 10.1016/j.molcel.2009.06.032
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The Smc5/6 complex is an evolutionarily conserved chromosomal ATPase required for cell growth and DNA repair. Its Mms21 subunit supports both functions by docking to the arm region of Smc5 and providing SUMO ligase activity. Here, we report the cryst ...

    The Smc5/6 complex is an evolutionarily conserved chromosomal ATPase required for cell growth and DNA repair. Its Mms21 subunit supports both functions by docking to the arm region of Smc5 and providing SUMO ligase activity. Here, we report the crystal structure of Mms21 in complex with the Smc5 arm. Our structure revealed two distinct structural and functional domains of the Smc5-bound Mms21: its N-terminal half is dedicated to Smc5 binding by forming a helix bundle with a coiled-coil structure of Smc5; its C-terminal half includes the SUMO ligase domain, which adopts a new type of RING E3 structure. Mutagenesis and structural analyses showed that the Mms21-Smc5 interface is required for cell growth and resistance to DNA damage, while the unique Mms21 RING domain confers specificity to the SUMO E2-E3 interaction. Through structure-based dissection of Mms21 functions, our studies establish a framework for understanding its roles in the Smc5/6 complex.


    Organizational Affiliation

    James Graham Brown Cancer Center, University of Louisville, KY 40202, USA.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Structural maintenance of chromosomes protein 5
A
60Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: SMC5YOL034W
Find proteins for Q08204 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q08204

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Structural maintenance of chromosomes protein 5
B
73Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: SMC5YOL034W
Find proteins for Q08204 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q08204

Find similar proteins by: Sequence  |  Structure

Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
E3 SUMO-protein ligase MMS21
C
267Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: MMS21NSE2YEL019C
EC: 6.3.2 (PDB Primary Data), 2.3.2 (UniProt)
Find proteins for P38632 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P38632
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download CCD File 
C
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.31 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.256 
  • R-Value Observed: 0.257 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 47.465α = 90
b = 91.574β = 90
c = 249.215γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling
SOLVEphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-10-20
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance