1N11

D34 REGION OF HUMAN ANKYRIN-R AND LINKER

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.303 
  • R-Value Work: 0.319 
  • R-Value Observed: 0.318 

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This is version 1.2 of the entry. See complete history. 


Literature

Crystal structure of a 12 ANK repeat stack from human ankyrinR

Michaely, P., Tomchick, D.R., Machius, M., Anderson, R.G.W.

(2002) EMBO J 21: 6387-6396

  • DOI: 10.1093/emboj/cdf651
  • Primary Citation of Related Structures:  
    1N11

  • PubMed Abstract: 

    • Ankyrins are multifunctional adaptors that link specific proteins to the membrane-associated, spectrin- actin cytoskeleton. The N-terminal, 'membrane-binding' domain of ankyrins contains 24 ANK repeats and mediates most binding activities. Repeats 13-24 are especially active, with known sites of interaction for the Na/K ATPase, Cl/HCO(3) anion exchanger, voltage-gated sodium channel, clathrin heavy chain and L1 family cell adhesion molecules ...

    Ankyrins are multifunctional adaptors that link specific proteins to the membrane-associated, spectrin- actin cytoskeleton. The N-terminal, 'membrane-binding' domain of ankyrins contains 24 ANK repeats and mediates most binding activities. Repeats 13-24 are especially active, with known sites of interaction for the Na/K ATPase, Cl/HCO(3) anion exchanger, voltage-gated sodium channel, clathrin heavy chain and L1 family cell adhesion molecules. Here we report the crystal structure of a human ankyrinR construct containing ANK repeats 13-24 and a portion of the spectrin-binding domain. The ANK repeats are observed to form a contiguous spiral stack with which the spectrin-binding domain fragment associates as an extended strand. The structural information has been used to construct models of all 24 repeats of the membrane-binding domain as well as the interactions of the repeats with the Cl/HCO(3) anion exchanger and clathrin. These models, together with available binding studies, suggest that ion transporters such as the anion exchanger associate in a large central cavity formed by the ANK repeat spiral, while clathrin and cell adhesion molecules associate with specific regions outside this cavity.

    Organizational Affiliation: 

    Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX 75235-9039, USA. peter.michaely@utsouthwestern.edu



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
AnkyrinA437Homo sapiensMutation(s): 0 
Gene Names: ank-1, ANK1, ANK
Find proteins for P16157 (Homo sapiens)
Explore P16157 
Go to UniProtKB:  P16157
NIH Common Fund Data Resources
PHAROS:  P16157
GTEx:  ENSG00000029534
Protein Feature View
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.303 
  • R-Value Work: 0.319 
  • R-Value Observed: 0.318 
  • Space Group: P 63 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 137.329α = 90
b = 137.329β = 90
c = 197.801γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
TRUNCATEdata reduction
MLPHAREphasing
CNSrefinement
HKL-2000data reduction
CCP4data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-12-11
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance