2MO0

Backbone 1H, 13C, and 15N Chemical Shift Assignments for cold shock protein, TaCsp


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structure and flexibility of the thermophilic cold-shock protein of Thermus aquaticus

Jin, B.Jeong, K.W.Kim, Y.

(2014) Biochem Biophys Res Commun 

  • DOI: 10.1016/j.bbrc.2014.07.127
  • Primary Citation of Related Structures:  
    2MO0, 2MO1

  • PubMed Abstract: 
  • The thermophilic bacterium Thermus aquaticus is a well-known source of Taq polymerase. Here, we studied the structure and dynamics of the T. aquaticus cold-shock protein (Ta-Csp) to better understand its thermostability using NMR spectroscopy. We found that Ta-Csp has a five-stranded β-barrel structure with five salt bridges which are important for more rigid structure and a higher melting temperature (76 °C) of Ta-Csp compared to mesophilic and psychrophilic Csps ...

    The thermophilic bacterium Thermus aquaticus is a well-known source of Taq polymerase. Here, we studied the structure and dynamics of the T. aquaticus cold-shock protein (Ta-Csp) to better understand its thermostability using NMR spectroscopy. We found that Ta-Csp has a five-stranded β-barrel structure with five salt bridges which are important for more rigid structure and a higher melting temperature (76 °C) of Ta-Csp compared to mesophilic and psychrophilic Csps. Microsecond to millisecond time scale exchange processes occur only at the β1-β2 surface region of the nucleic acid binding site with an average conformational exchange rate constant of 674 s(-1). The results imply that thermophilic Ta-Csp has a more rigid structure and may not need high structural flexibility to accommodate nucleic acids upon cold shock compared to its mesophile and psychrophile counterparts.


    Organizational Affiliation

    Department of Bioscience and Biotechnology, BMIC, Konkuk University, Seoul 143-701, South Korea. Electronic address: ymkim@konkuk.ac.kr.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Cold-shock DNA-binding domain proteinA68Thermus aquaticus Y51MC23Mutation(s): 0 
Gene Names: TaqDRAFT_4615
UniProt
Find proteins for B7ABH3 (Thermus aquaticus Y51MC23)
Explore B7ABH3 
Go to UniProtKB:  B7ABH3
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 
  • OLDERADO: 2MO0 Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-08-20
    Type: Initial release
  • Version 1.1: 2020-09-09
    Changes: Data collection, Derived calculations, Structure summary