1XDX

Solution Structure of the Tctex1 Light Chain From Chlamydomonas Inner Dynein Arm I1


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 90 
  • Conformers Submitted: 15 
  • Selection Criteria: target function,structures with the least restraint violations 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Solution Structure of the Tctex1 Dimer Reveals a Mechanism for Dynein-Cargo Interactions

Wu, H.Maciejewski, M.W.Takebe, S.King, S.M.

(2005) Structure 13: 213-223

  • DOI: https://doi.org/10.1016/j.str.2004.11.013
  • Primary Citation of Related Structures:  
    1XDX

  • PubMed Abstract: 

    Tctex1 is a light chain found in both cytoplasmic and flagellar dyneins and is involved in many fundamental cellular activities, including rhodopsin transport within photoreceptors, and may function in the non-Mendelian transmission of t haplotypes in mice. Here, we present the NMR solution structure for the Tctex1 dimer from Chlamydomonas axonemal inner dynein arm I1. Structural comparisons reveal a strong similarity with the LC8 dynein light chain dimer, including formation of a strand-switched beta sheet interface. Analysis of the Tctex1 structure enables the dynein intermediate chain binding site to be identified and suggests a mechanism by which cargo proteins might be attached to this microtubule motor complex. Comparison with the alternate dynein light chain rp3 reveals how the specificity of dynein-cargo interactions mediated by these dynein components is achieved. In addition, this structure provides insight into the consequences of the mutations found in the t haplotype forms of this protein.


  • Organizational Affiliation

    Department of Molecular, Microbial, and Structural Biology, 263 Farmington Avenue, Farmington, Connecticut 06030, USA.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Tctex1 Light Chain protein
A, B
114Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: AF039437
UniProt
Find proteins for O64980 (Chlamydomonas reinhardtii)
Explore O64980 
Go to UniProtKB:  O64980
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO64980
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 90 
  • Conformers Submitted: 15 
  • Selection Criteria: target function,structures with the least restraint violations 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-03-01
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-03-02
    Changes: Database references, Derived calculations