Cdc48 Hexamer (Subunits A to E) with substrate bound to the central pore

Experimental Data Snapshot

  • Resolution: 3.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report

This is version 1.2 of the entry. See complete history


Structure of the Cdc48 segregase in the act of unfolding an authentic substrate.

Cooney, I.Han, H.Stewart, M.G.Carson, R.H.Hansen, D.T.Iwasa, J.H.Price, J.C.Hill, C.P.Shen, P.S.

(2019) Science 365: 502-505

  • DOI: https://doi.org/10.1126/science.aax0486
  • Primary Citation of Related Structures:  
    6OMB, 6OPC

  • PubMed Abstract: 

    The cellular machine Cdc48 functions in multiple biological pathways by segregating its protein substrates from a variety of stable environments such as organelles or multi-subunit complexes. Despite extensive studies, the mechanism of Cdc48 has remained obscure, and its reported structures are inconsistent with models of substrate translocation proposed for other AAA+ ATPases (adenosine triphosphatases). Here, we report a 3.7-angstrom-resolution structure of Cdc48 in complex with an adaptor protein and a native substrate. Cdc48 engages substrate by adopting a helical configuration of substrate-binding residues that extends through the central pore of both of the ATPase rings. These findings indicate a unified hand-over-hand mechanism of protein translocation by Cdc48 and other AAA+ ATPases.

  • Organizational Affiliation

    Department of Biochemistry, 15 N. Medical Drive East, University of Utah, Salt Lake City, UT 84112, USA. chris@biochem.utah.edu peter.shen@biochem.utah.edu.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Cell division control protein 48
A, B, C, D, E
835Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: CDC48YDL126C
Find proteins for P25694 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P25694 
Go to UniProtKB:  P25694
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP25694
Sequence Annotations
  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Substrate of Cdc48F [auth G]22Saccharomyces cerevisiae S288CMutation(s): 0 
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on ADP

Download Ideal Coordinates CCD File 
BA [auth D]
EA [auth E]
FA [auth E]
G [auth A]
J [auth A]
BA [auth D],
EA [auth E],
FA [auth E],
G [auth A],
J [auth A],
M [auth B],
O [auth B],
S [auth C],
V [auth C],
Y [auth D]
C10 H15 N5 O10 P2
Query on BEF

Download Ideal Coordinates CCD File 
CA [auth D]
H [auth A]
K [auth A]
P [auth B]
R [auth C]
CA [auth D],
H [auth A],
K [auth A],
P [auth B],
R [auth C],
T [auth C],
W [auth C],
Z [auth D]
Be F3
Query on MG

Download Ideal Coordinates CCD File 
AA [auth D]
DA [auth D]
I [auth A]
L [auth A]
N [auth B]
AA [auth D],
DA [auth D],
I [auth A],
L [auth A],
N [auth B],
Q [auth B],
U [auth C],
X [auth C]
Experimental Data & Validation

Experimental Data

  • Resolution: 3.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)United StatesP50GM082545

Revision History  (Full details and data files)

  • Version 1.0: 2019-07-17
    Type: Initial release
  • Version 1.1: 2019-08-14
    Changes: Data collection, Database references
  • Version 1.2: 2019-12-18
    Changes: Author supporting evidence, Other