2PL2 | pdb_00002pl2

Crystal structure of TTC0263: a thermophilic TPR protein in Thermus thermophilus HB27

• PDB DOI: https://doi.org/10.2210/pdb2PL2/pdb

• Classification: PROTEIN BINDING
• Organism(s): Thermus thermophilus HB27
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2007-04-18 Released: 2008-03-04 
• Deposition Author(s): Lim, H., Kim, K., Han, D., Oh, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 
  0.281 (DCC) 
• R-Value Work: 
  0.236 (Depositor), 0.234 (DCC) 
• R-Value Observed: 
  0.286 (Depositor) 

Literature

Crystal structure of TTC0263, a thermophilic TPR protein from Thermus thermophilus HB27.

Lim, H., Kim, K., Han, D., Oh, J., Kim, Y.

(2007) Mol Cell 24: 27-36

• PubMed: 17846496 
• Primary Citation Related Structures: 
  2PL2


• PubMed Abstract: 
  

  The hypothetical protein TTC0263 of Thermus thermophilus HB27 is a thermophilic tetratricopeptide repeat (TPR)-containing protein. In the present study, the TPR region (residues 26-230) was resolved at 2.5 A with R-factors of R/Rfree = 23.6%/28.6%. TTC0263 consists of 11 helices that form five TPR units. Uniquely, it contains one atypical "extended" TPR (eTPR) unit. This comprises extended helical residues near the loop region of TTC0263, such that the helical length of eTPR is longer than that of the canonical TPR sequence. In addition, the hybrid TPR domain of TTC0263 possesses oligomer-forming characteristics. TPR domains are generally involved in forming multi-subunit complexes by interacting with each other or with other subunit proteins. The dynamic structure of TTC0263 described here goes some way to explaining how TPR domains mediate the formation of multi-subunit complexes.

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Organizational Affiliation: 
• College of Medicine, Seoul National University, Seoul 110-799, Korea.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 48.78 kDa 
• Atom Count: 3,128 
• Modeled Residue Count: 388 
• Deposited Residue Count: 434 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hypothetical conserved protein TTC0263	A, B	217	Thermus thermophilus HB27	Mutation(s): 0
UniProt
Find proteins for Q72L02 (Thermus thermophilus (strain ATCC BAA-163 / DSM 7039 / HB27)) Explore Q72L02  Go to UniProtKB:  Q72L02

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free:  0.281 (DCC) 
• R-Value Work:  0.236 (Depositor), 0.234 (DCC) 
• R-Value Observed: 0.286 (Depositor) 

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 90.07	α = 90
b = 71.02	β = 122.97
c = 77.72	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
CNS	refinement
PDB_EXTRACT	data extraction
bioteX	data collection
HKL-2000	data reduction
SOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-03-04 
Deposition Author(s): Lim, H., Kim, K., Han, D., Oh, J.

Revision History  

• Version 1.0: 2008-03-04
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Source and taxonomy, Version format compliance
• Version 1.2: 2017-10-18
  Changes: Refinement description
• Version 1.3: 2024-03-13
  Changes: Data collection, Database references