6L5J

Crystal structure of human rootletin 1108-1317


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.77 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.283 
  • R-Value Observed: 0.283 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Identification of a Structurally Dynamic Domain for Oligomer Formation in Rootletin.

Ko, D.Kim, J.Rhee, K.Choi, H.J.

(2020) J Mol Biol 432: 3915-3932

  • DOI: 10.1016/j.jmb.2020.04.012
  • Primary Citation of Related Structures:  
    6L5H, 6L5J

  • PubMed Abstract: 
  • Rootletin is the main component of the ciliary rootlet and functions as a centriole linker connecting the two mother centrioles. Despite the functional importance of rootletin, the molecular architecture of the rootletin filament and its assembly mechanism are poorly understood ...

    Rootletin is the main component of the ciliary rootlet and functions as a centriole linker connecting the two mother centrioles. Despite the functional importance of rootletin, the molecular architecture of the rootletin filament and its assembly mechanism are poorly understood. Here, we identify the coiled-coil domain 3 (CCD3) of rootletin as the key domain for its cellular function. The crystal structure of the CCD3 1108-1317 fragment containing 28 heptad repeats and 1 hendecad repeat reveals that it forms a parallel coiled-coil dimer spanning approximately 300 Å in length. Crosslinking experiments and biophysical analyses of the minimal functional region of CCD3 (CCD3-6) suggest that CCD3-6 is structurally dynamic and may be important for oligomer formation. We also show that oligomerization-defective CCD3 mutants fail in centrosomal localization and centriole linkage, suggesting that rootletin oligomerization may be important for its function.


    Organizational Affiliation

    Department of Biological Sciences, Seoul National University, Seoul 08826, Republic of Korea. Electronic address: choihj@snu.ac.kr.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
RootletinA, B, C, D215Homo sapiensMutation(s): 2 
Gene Names: CROCCKIAA0445
UniProt & NIH Common Fund Data Resources
Find proteins for Q5TZA2 (Homo sapiens)
Explore Q5TZA2 
Go to UniProtKB:  Q5TZA2
PHAROS:  Q5TZA2
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, DL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.77 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.283 
  • R-Value Observed: 0.283 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 60.389α = 92.62
b = 67.997β = 108.5
c = 79.772γ = 113.84
Software Package:
Software NamePurpose
PHENIXrefinement
BUSTERrefinement
HKL-2000data scaling
PDB_EXTRACTdata extraction
HKL-2000data reduction
AutoSolphasing

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data

  • Deposited Date: 2019-10-23 
  • Released Date: 2020-07-29 
  • Deposition Author(s): Kim, J., Choi, H.J.

Funding OrganizationLocationGrant Number
National Research Foundation (Korea)Korea, Republic OfNRF-2014R1A4A10052590

Revision History  (Full details and data files)

  • Version 1.0: 2020-07-29
    Type: Initial release