1YA5

Crystal structure of the titin domains z1z2 in complex with telethonin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.44 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.232 
  • R-Value Observed: 0.233 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Palindromic assembly of the giant muscle protein titin in the sarcomeric Z-disk

Zou, P.Pinotsis, N.Lange, S.Song, Y.H.Popov, A.Mavridis, I.Mayans, O.M.Gautel, M.Wilmanns, M.

(2006) Nature 439: 229-233

  • DOI: 10.1038/nature04343
  • Primary Citation of Related Structures:  
    1YA5

  • PubMed Abstract: 
  • The Z-disk of striated and cardiac muscle sarcomeres is one of the most densely packed cellular structures in eukaryotic cells. It provides the architectural framework for assembling and anchoring the largest known muscle filament systems by an exten ...

    The Z-disk of striated and cardiac muscle sarcomeres is one of the most densely packed cellular structures in eukaryotic cells. It provides the architectural framework for assembling and anchoring the largest known muscle filament systems by an extensive network of protein-protein interactions, requiring an extraordinary level of mechanical stability. Here we show, using X-ray crystallography, how the amino terminus of the longest filament component, the giant muscle protein titin, is assembled into an antiparallel (2:1) sandwich complex by the Z-disk ligand telethonin. The pseudosymmetric structure of telethonin mediates a unique palindromic arrangement of two titin filaments, a type of molecular assembly previously found only in protein-DNA complexes. We have confirmed its unique architecture in vivo by protein complementation assays, and in vitro by experiments using fluorescence resonance energy transfer. The model proposed may provide a molecular paradigm of how major sarcomeric filaments are crosslinked, anchored and aligned within complex cytoskeletal networks.


    Related Citations: 
    • Crystal structure of the titin domains z1z2 in complex with telethonin
      Pinotsis, N.
      (2003) Thesis --: --

    Organizational Affiliation

    EMBL-Hamburg c/o DESY, Notkeststrasse 85, D-22603 Hamburg, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
N2B-TITIN ISOFORMAB201Homo sapiensMutation(s): 0 
Gene Names: TTN
EC: 2.7.11.1
Find proteins for Q8WZ42 (Homo sapiens)
Explore Q8WZ42 
Go to UniProtKB:  Q8WZ42
NIH Common Fund Data Resources
PHAROS  Q8WZ42
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
TELETHONINT90Homo sapiensMutation(s): 4 
Gene Names: TCAP
Find proteins for O15273 (Homo sapiens)
Explore O15273 
Go to UniProtKB:  O15273
NIH Common Fund Data Resources
PHAROS  O15273
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download CCD File 
A, B, T
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.44 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.232 
  • R-Value Observed: 0.233 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.326α = 90
b = 63.213β = 90
c = 242.584γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
MLPHAREphasing
REFMACrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-12-20
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Version format compliance