3UCS

Crystal structure of the complex between CBPA J-domain and CBPM

• PDB DOI: https://doi.org/10.2210/pdb3UCS/pdb

• Classification: CHAPERONE
• Organism(s): Klebsiella pneumoniae 342, Escherichia coli K-12
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2011-10-27 Released: 2013-07-03 
• Deposition Author(s): Shi, R., Sarraf, N.S., Cygler, M., Ekiel, I., Montreal-Kingston Bacterial Structural Genomics Initiative (BSGI)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.87 Å
• R-Value Free: 0.232 
• R-Value Work: 0.196 
• R-Value Observed: 0.198 

Literature

Structure of the complex between CbpA J-domain and CbpM provides a link between chaperone and transcription regulation in bacterial heat shock response

Sarraf, N.S., Shi, R., Zhang, L., Cygler, M., Ekiel, I.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 40.56 kDa 
• Atom Count: 3,264 
• Modelled Residue Count: 342 
• Deposited Residue Count: 352 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Chaperone-modulator protein CbpM	A, B	102	Klebsiella pneumoniae 342	Mutation(s): 0  Gene Names: cbpM, KPK_5158
UniProt
Find proteins for B5Y388 (Klebsiella pneumoniae (strain 342)) Explore B5Y388  Go to UniProtKB:  B5Y388

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Curved DNA-binding protein	C, D	74	Escherichia coli K-12	Mutation(s): 0  Gene Names: b1000, cbpA, JW0985
UniProt
Find proteins for P36659 (Escherichia coli (strain K12)) Explore P36659  Go to UniProtKB:  P36659

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.87 Å
• R-Value Free: 0.232 
• R-Value Work: 0.196 
• R-Value Observed: 0.198 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 52.816	α = 90
b = 77.094	β = 90
c = 111.231	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
SHARP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-07-03 
Deposition Author(s): Shi, R., Sarraf, N.S., Cygler, M., Ekiel, I., Montreal-Kingston Bacterial Structural Genomics Initiative (BSGI)

Revision History  

• Version 1.0: 2013-07-03
  Type: Initial release
  
• Version 1.1: 2017-11-08
  Changes: Refinement description
• Version 1.2: 2024-02-28
  Changes: Data collection, Database references