2F8V

Structure of full length telethonin in complex with the N-terminus of titin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.267 
  • R-Value Observed: 0.267 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Evidence for a dimeric assembly of two titin/telethonin complexes induced by the telethonin C-terminus.

Pinotsis, N.Petoukhov, M.Lange, S.Svergun, D.Zou, P.Gautel, M.Wilmanns, M.

(2006) J Struct Biol 155: 239-250

  • DOI: 10.1016/j.jsb.2006.03.028
  • Primary Citation of Related Structures:  
    2F8V

  • PubMed Abstract: 
  • The Z-disk region defines the lateral boundary of the sarcomere and requires a high level of mechanical strength to provide a stable framework for large filamentous muscle proteins. The level of complexity at this area is reflected by a large number of p ...

    The Z-disk region defines the lateral boundary of the sarcomere and requires a high level of mechanical strength to provide a stable framework for large filamentous muscle proteins. The level of complexity at this area is reflected by a large number of protein-protein interactions. Recently, we unraveled how the N-terminus of the longest filament component, the giant muscle protein titin, is assembled into an antiparallel (2:1) sandwich complex by the N-terminal titin-binding segment of the Z-disk ligand telethonin/T-cap [Zou, P., Pinotsis, N., Lange, S., Song, Y.H., Popov, A., Mavridis, I., Mayans, O.M., Gautel, M., Wilmanns, M., 2006. Palindromic assembly of the giant muscle protein titin in the sarcomeric Z-disk. Nature 439, 229-233]. In this contribution, we present structural data of a related complex of the titin N-terminus with full-length telethonin. The C-terminus of telethonin remains invisible, suggesting that it does not fold into a defined structure even in the presence of titin. In contrast to the structure with truncated telethonin, a dimer of two titin/telethonin complexes is formed within the crystal environment, potentially indicating the formation of higher oligomers. We further investigated the structure and dynamics of this assembly by small-angle X-ray scattering, circular dichroism, and in vivo complementation data. The data consistently indicate the involvement of the C-terminal part of telethonin into the assembly of two titin/telethonin complexes.


    Organizational Affiliation

    EMBL-Hamburg, c/o DESY, Notkeststrasse 85, D-22603 Hamburg, Germany. pinotsis@embl-hamburg.de



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
N2B-Titin Isoform ABCD201Homo 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
Telethonin TY167Homo sapiensMutation(s): 5 
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
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.267 
  • R-Value Observed: 0.267 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 112.513α = 90
b = 46.885β = 98.3
c = 128.033γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-06-27
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.3: 2012-07-25
    Changes: Other