1SRV

THERMUS THERMOPHILUS GROEL (HSP60 CLASS) FRAGMENT (APICAL DOMAIN) COMPRISING RESIDUES 192-336

• PDB DOI: https://doi.org/10.2210/pdb1SRV/pdb

• Classification: CHAPERONE
• Organism(s): Thermus thermophilus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1999-03-02 Released: 1999-03-12 
• Deposition Author(s): Walsh, M.A., Dementieva, I., Evans, G., Sanishvili, R., Joachimiak, A.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.257 
• R-Value Work: 0.199 
• R-Value Observed: 0.193 

Literature

Taking MAD to the extreme: ultrafast protein structure determination.

Walsh, M.A., Dementieva, I., Evans, G., Sanishvili, R., Joachimiak, A.

(1999) Acta Crystallogr D Biol Crystallogr 55: 1168-1173

• PubMed: 10329779 
• DOI: https://doi.org/10.1107/s0907444999003698
• Primary Citation of Related Structures:  
  1SRV


• PubMed Abstract: 
  

  Multiwavelength anomalous diffraction data were measured in 23 min from a 16 kDa selenomethionyl substituted protein, producing experimental phases to 2.25 A resolution. The data were collected on a mosaic 3 x 3 charge-coupled device using undulator radiation from the Structural Biology Center 19ID beamline at the Argonne National Laboratory's Advanced Photon Source. The phases were independently obtained semiautomatically by two crystallographic program suites, CCP4 and CNS. The quality and speed of this data acquisition exemplify the opportunities at third-generation synchrotron sources for high-throughput protein crystal structure determination.

---

Organizational Affiliation: 

Building 202, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 15.75 kDa 
• Atom Count: 1,223 
• Modelled Residue Count: 145 
• Deposited Residue Count: 145 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PROTEIN (GROEL (HSP60 CLASS))	A	145	Thermus thermophilus	Mutation(s): 0
UniProt
Find proteins for P61491 (Thermus thermophilus) Explore P61491  Go to UniProtKB:  P61491

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.257 
• R-Value Work: 0.199 
• R-Value Observed: 0.193 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 63.47	α = 90
b = 65.96	β = 90
c = 75.03	γ = 90

Software Package:

Software Name	Purpose
MLPHARE	phasing
CCP4	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-03-12 
Deposition Author(s): Walsh, M.A., Dementieva, I., Evans, G., Sanishvili, R., Joachimiak, A.

Revision History  

• Version 1.0: 1999-03-12
  Type: Initial release
  
• Version 1.1: 2008-04-26
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2019-11-06
  Changes: Data collection, Database references
• Version 1.4: 2023-12-27
  Changes: Data collection, Database references