5X2D

Crystal structure of DLC like domain of CsTAL3 (83-177aa)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.224 
  • R-Value Observed: 0.228 

Starting Model: experimental
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This is version 1.3 of the entry. See complete history


Literature

Structural insights into a 20.8-kDa tegumental-allergen-like (TAL) protein from Clonorchis sinensis

Jo, C.H.Son, J.Kim, S.Oda, T.Kim, J.Lee, M.R.Sato, M.Kim, H.T.Unzai, S.Park, S.Y.Hwang, K.Y.

(2017) Sci Rep 7: 1764-1764

  • DOI: https://doi.org/10.1038/s41598-017-02044-0
  • Primary Citation of Related Structures:  
    5X2D, 5X2E

  • PubMed Abstract: 

    Survival of Clonorchis sinensis, a cause of human clonorchiasis, requires tegument proteins, which are localized to the tegumental outer surface membrane. These proteins play an important role in a host response and parasite survival. Thus, these proteins are interesting molecular targets for vaccine and drug development. Here, we have determined two crystal structures of the calmodulin like domain (amino acid [aa] positions 1-81) and dynein light chain (DLC)-like domain (aa 83-177) of a 20.8-kDa tegumental-allergen-like protein from Clonorchis sinensis (CsTAL3). The calmodulin like domain has two Ca 2+ -binding sites (named CB1 and CB2), but Ca 2+ binds to only one site, CB1. The DLC-like domain has a dimeric conformation; the interface is formed mainly by hydrogen bonds between the main chain atoms. In addition, we have determined full-length structure of CsTAL3 in solution and showed the conformational change of CsTAL3 induced by Ca 2+ ion binding using small-angle X-ray scattering analysis and molecular dynamics simulations. The Ca 2+ -bound form has a more extended conformation than the Ca 2+ -free from does. These structural and biochemical analyses will advance the understanding of the biology of this liver fluke and may contribute to our understanding of the molecular mechanism of calcium-responsive and tegumental-allergen-like proteins.


  • Organizational Affiliation

    Division of Biotechnology, College of Life Sciences & Biotechnology, Korea University, Seoul, 136-701, Republic of Korea.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Tegumental protein 20.8 kDa
A, B, C
95Clonorchis sinensisMutation(s): 0 
UniProt
Find proteins for Q2PMV7 (Clonorchis sinensis)
Explore Q2PMV7 
Go to UniProtKB:  Q2PMV7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ2PMV7
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.224 
  • R-Value Observed: 0.228 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 88.397α = 90
b = 154.082β = 90
c = 61.631γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data scaling
PHENIXmodel building
HKL-2000data reduction
PHENIXphasing

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Research FoundationKorea, Republic Of2013R1A1A2008404

Revision History  (Full details and data files)

  • Version 1.0: 2017-08-30
    Type: Initial release
  • Version 1.1: 2017-09-27
    Changes: Data collection
  • Version 1.2: 2024-03-27
    Changes: Data collection, Database references
  • Version 1.3: 2024-04-03
    Changes: Refinement description