6J2Y

Solution structure of translationally controlled tumor protein from photosynthetic microalga Nannochloropsis oceanica


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Solution structure of a unicellular microalgae-derived translationally controlled tumor protein revealed both conserved features and structural diversity.

Yao, X.Liu, Y.J.Cui, Q.Feng, Y.

(2019) Arch. Biochem. Biophys. 665: 23-29

  • DOI: 10.1016/j.abb.2019.02.012

  • PubMed Abstract: 
  • Translationally controlled tumor proteins (TCTPs) are eukaryote-conserved multifunctional proteins, but their primary functions are not well understood yet. Study on TCTP from unicellular species may provide insight into the primary function of the T ...

    Translationally controlled tumor proteins (TCTPs) are eukaryote-conserved multifunctional proteins, but their primary functions are not well understood yet. Study on TCTP from unicellular species may provide insight into the primary function of the TCTP family. Bioinformatic analysis indicated that the TCTP from Nannochloropsis oceanica (NoTCTP), a model unicellular microalga for biodiesel and polyunsaturated fatty acid production, has low sequence homology to other structure-known TCTPs and two TCTP signature patterns are not detected in NoTCTP. Hence, we determined the solution structure of NoTCTP. The overall structure of NoTCTP, including a long flexible loop, a β-barrel subdomain, and a helical subdomain, is generally similar to other TCTP structures. NoTCTP has a eukaryote-conserved surface for the binding of eukaryotic elongation factor 1B, confirming that TCTP is involved in protein synthesis, which is one of the primary functions of TCTP. Additionally, NoTCTP has distinct features different from other TCTPs. NoTCTP structure lacks a short α-helix which exists in all other known TCTP structures. The helical subdomain and some loops of NoTCTP also have distinct conformations among the TCTP family proteins. Therefore, our study on NoTCTP revealed not only conserved structural features but also the structural diversity of TCTP family proteins.


    Organizational Affiliation

    CAS Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China; Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China; Qingdao Engineering Laboratory of Single Cell Oil, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China; University of Chinese Academy of Sciences, Beijing, 100049, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NoTCTP
A
188N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2019-01-03 
  • Released Date: 2019-03-13 
  • Deposition Author(s): Yao, X., Feng, Y.

Funding OrganizationLocationGrant Number
Ministry of Science and Technology (China)China2012AA02A707

Revision History 

  • Version 1.0: 2019-03-13
    Type: Initial release