3DSN

Crystal structure of the complex of the Caf1M chaperone with the mini-fiber of two Caf1 subunits (Caf1:Caf1), carrying the Thr7Phe mutation in the Gd donor strand

• PDB DOI: https://doi.org/10.2210/pdb3DSN/pdb

• Classification: CHAPERONE
• Organism(s): Yersinia pestis
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2008-07-13 Released: 2009-07-14 
• Deposition Author(s): Fooks, L.J., Yu, X., Moslehi-Mohebi, E., Tischenko, V., Knight, S.D., MacIntyre, S., Zavialov, A.V.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.281 
• R-Value Work: 0.234 
• R-Value Observed: 0.237 

Literature

Hydrophobicity and rigidity of binding segments enable CAF1M chaperone to act as assembly catalyst

Fooks, L.J., Yu, X., Moslehi-Mohebi, E., Tischenko, V., Knight, S.D., MacIntyre, S., Zavialov, A.V.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A2B1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A2B1 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 115.14 kDa 
• Atom Count: 7,306 
• Modelled Residue Count: 945 
• Deposited Residue Count: 1,066 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Chaperone protein caf1M	A, D	235	Yersinia pestis	Mutation(s): 0  Gene Names: caf1M, YPMT1.82, y5194, y1098, YP_pMT084
UniProt
Find proteins for P26926 (Yersinia pestis) Explore P26926  Go to UniProtKB:  P26926

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
F1 capsule antigen	B, C, E, F	149	Yersinia pestis	Mutation(s): 0  Gene Names: caf1, YPMT1.84, y5196, y1100, YP_pMT082
UniProt
Find proteins for P26948 (Yersinia pestis) Explore P26948  Go to UniProtKB:  P26948

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.281 
• R-Value Work: 0.234 
• R-Value Observed: 0.237 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 71.69	α = 90
b = 91.149	β = 90
c = 165.483	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
MxCuBE	data collection
MOSFLM	data reduction
SCALA	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-07-14 
Deposition Author(s): Fooks, L.J., Yu, X., Moslehi-Mohebi, E., Tischenko, V., Knight, S.D., MacIntyre, S., Zavialov, A.V.

Revision History  

• Version 1.0: 2009-07-14
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-08-30
  Changes: Data collection, Database references, Refinement description