2XVC

Molecular and structural basis of ESCRT-III recruitment to membranes during archaeal cell division

• PDB DOI:  https://doi.org/10.2210/pdb2XVC/pdb

• Classification: CELL CYCLE
• Organism(s): Saccharolobus solfataricus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2010-10-25 Released: 2011-02-02 
• Deposition Author(s): Samson, R.Y., Obita, T., Hodgson, B., Shaw, M.K., Chong, P.L., Williams, R.L., Bell, S.D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.15 Å
• R-Value Free: 0.254 
• R-Value Work: 0.229 
• R-Value Observed: 0.230 

Literature

Molecular and Structural Basis of Escrt-III Recruitment to Membranes During Archaeal Cell Division.

Samson, R.Y., Obita, T., Hodgson, B., Shaw, M.K., Chong, P.L., Williams, R.L., Bell, S.D.

(2011) Mol Cell 41: 186

• PubMed: 21255729 
• DOI: https://doi.org/10.1016/j.molcel.2010.12.018
• Primary Citation of Related Structures:  
  2XVC


• PubMed Abstract: 
  

Members of the crenarchaeal kingdom, such as Sulfolobus, divide by binary fission yet lack genes for the otherwise near-ubiquitous tubulin and actin superfamilies of cytoskeletal proteins. Recent work has established that Sulfolobus homologs of the eukaryotic ESCRT-III and Vps4 components of the ESCRT machinery play an important role in Sulfolobus cell division. In eukaryotes, several pathways recruit ESCRT-III proteins to their sites of action. However, the positioning determinants for archaeal ESCRT-III are not known. Here, we identify a protein, CdvA, that is responsible for recruiting Sulfolobus ESCRT-III to membranes. Overexpression of the isolated ESCRT-III domain that interacts with CdvA results in the generation of nucleoid-free cells. Furthermore, CdvA and ESCRT-III synergize to deform archaeal membranes in vitro. The structure of the CdvA/ESCRT-III interface gives insight into the evolution of the more complex and modular eukaryotic ESCRT complex.

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Organizational Affiliation: 

Sir William Dunn School of Pathology, South Parks Road, Oxford OX1 3RE, UK.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 8.69 kDa 
• Atom Count: 578 
• Modelled Residue Count: 69 
• Deposited Residue Count: 74 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ESCRT-III	A	59	Saccharolobus solfataricus	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
CDVA, SSO0911	B	15	Saccharolobus solfataricus	Mutation(s): 0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CD	C [auth A], D [auth A]	CADMIUM ION Cd WLZRMCYVCSSEQC-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.15 Å
• R-Value Free: 0.254 
• R-Value Work: 0.229 
• R-Value Observed: 0.230 
• Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 65.24	α = 90
b = 65.24	β = 90
c = 60.992	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALEPACK	data scaling
SHARP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-02-02 
Deposition Author(s): Samson, R.Y., Obita, T., Hodgson, B., Shaw, M.K., Chong, P.L., Williams, R.L., Bell, S.D.

Revision History  

• Version 1.0: 2011-02-02
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2018-01-24
  Changes: Source and taxonomy