2SPC

CRYSTAL STRUCTURE OF THE REPETITIVE SEGMENTS OF SPECTRIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Work: 0.203 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure of the repetitive segments of spectrin.

Yan, Y.Winograd, E.Viel, A.Cronin, T.Harrison, S.C.Branton, D.

(1993) Science 262: 2027-2030


  • PubMed Abstract: 
  • The elongated proteins of the spectrin family (dystrophin, alpha-actinin, and spectrin) contain tandemly repeated segments and form resilient cellular meshworks by cross-linking actin filaments. The structure of one of the repetitive segments of alph ...

    The elongated proteins of the spectrin family (dystrophin, alpha-actinin, and spectrin) contain tandemly repeated segments and form resilient cellular meshworks by cross-linking actin filaments. The structure of one of the repetitive segments of alpha-spectrin was determined at a 1.8 angstrom resolution. A segment consists of a three-helix bundle. A model of the interface between two tandem segments suggests that hydrophobic interactions between segments may constrain intersegment flexibility. The helix side chain interactions explain how mutations that are known to produce hemolytic anemias disrupt spectrin associations that sustain the integrity of the erythrocyte membrane.


    Organizational Affiliation

    Department of Biochemistry, Harvard University, Cambridge, MA 02138.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SPECTRIN
A, B
107Drosophila melanogasterMutation(s): 0 
Gene Names: alpha-Spec (SPEC-A)
Find proteins for P13395 (Drosophila melanogaster)
Go to UniProtKB:  P13395
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Work: 0.203 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 46.800α = 90.00
b = 47.220β = 90.00
c = 104.430γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
TNTrefinement
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-05-31
    Type: Initial release
  • Version 1.1: 2008-03-25
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2011-11-16
    Type: Atomic model