5AWE

Crystal structure of a hypothetical protein, TTHA0829 from Thermus thermophilus HB8, composed of cystathionine-beta-synthase (CBS) and aspartate-kinase chorismate-mutase tyrA (ACT) domains


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.214 

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This is version 1.2 of the entry. See complete history


Literature

Crystal structure of a hypothetical protein, TTHA0829 from Thermus thermophilus HB8, composed of cystathionine-beta-synthase (CBS) and aspartate-kinase chorismate-mutase tyrA (ACT) domains.

Nakabayashi, M.Shibata, N.Ishido-Nakai, E.Kanagawa, M.Iio, Y.Komori, H.Ueda, Y.Nakagawa, N.Kuramitsu, S.Higuchi, Y.

(2016) Extremophiles 20: 275-282

  • DOI: 10.1007/s00792-016-0817-y
  • Primary Citation of Related Structures:  
    5AWE

  • PubMed Abstract: 
  • TTHA0829 from Thermus thermophilus HB8 has a molecular mass of 22,754 Da and is composed of 210 amino acid residues. The expression of TTHA0829 is remarkably elevated in the latter half of logarithmic growth phase. TTHA0829 can form either a tetrameric or dimeric structure, and main-chain folding provides an N-terminal cystathionine-β-synthase (CBS) domain and a C-terminal aspartate-kinase chorismate-mutase tyrA (ACT) domain ...

    TTHA0829 from Thermus thermophilus HB8 has a molecular mass of 22,754 Da and is composed of 210 amino acid residues. The expression of TTHA0829 is remarkably elevated in the latter half of logarithmic growth phase. TTHA0829 can form either a tetrameric or dimeric structure, and main-chain folding provides an N-terminal cystathionine-β-synthase (CBS) domain and a C-terminal aspartate-kinase chorismate-mutase tyrA (ACT) domain. Both CBS and ACT are regulatory domains to which a small ligand molecule can bind. The CBS domain is found in proteins from organisms belonging to all kingdoms and is observed frequently as two or four tandem copies. This domain is considered as a small intracellular module with a regulatory function and is typically found adjacent to the active (or functional) site of several enzymes and integral membrane proteins. The ACT domain comprises four β-strands and two α-helices in a βαββαβ motif typical of intracellular small molecule binding domains that help control metabolism, solute transport and signal transduction. We discuss the possible role of TTHA0829 based on its structure and expression pattern. The results imply that TTHA0829 acts as a cell-stress sensor or a metabolite acceptor.


    Organizational Affiliation

    RIKEN SPring-8 Center, Harima Institute, 1-1-1 Koto, Sayo-cho, Sayo-Gun, Hyogo, 679-5148, Japan.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Putative acetoin utilization protein, acetoin dehydrogenaseA210Thermus thermophilus HB8Mutation(s): 0 
Gene Names: TTHA0829
UniProt
Find proteins for Q5SK23 (Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8))
Explore Q5SK23 
Go to UniProtKB:  Q5SK23
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ5SK23
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.214 
  • Space Group: P 62 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 90.8α = 90
b = 90.8β = 90
c = 89.75γ = 120
Software Package:
Software NamePurpose
CNSrefinement
HKL-2000data processing
HKL-2000data scaling
SnBphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-05-18
    Type: Initial release
  • Version 1.1: 2016-09-28
    Changes: Structure summary
  • Version 1.2: 2020-02-26
    Changes: Data collection, Derived calculations