Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 46858.88 
• Atom Count: 3084 
• Residue Count: 437 
• Unique protein chains: 1

1N11

D34 REGION OF HUMAN ANKYRIN-R AND LINKER

• DOI: 10.2210/pdb1N11/pdb

• Classification: STRUCTURAL PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli


• Deposited: 2002-10-16 Released: 2002-12-11 
• Deposition Author(s): Michaely, P., Tomchick, D.R., Machius, M., Anderson, R.G.W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.7 Å
• R-Value Free: 0.303 
• R-Value Work: 0.319 

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

• PubMed: 12456646 


• 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. 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.

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Organizational Affiliation: 

Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX 75235-9039, USA. [e-mail]

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Ankyrin	A	437	Homo sapiens	Mutation(s): 0  Gene Names: ANK1 (ANK)
Find proteins for P16157 (Homo sapiens) Go to Gene View: ANK1 Go to UniProtKB:  P16157

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
CL	A	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M
BR	A	BROMIDE ION Br CPELXLSAUQHCOX-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.7 Å
• R-Value Free: 0.303 
• R-Value Work: 0.319 
• Space Group: P 6₃ 2 2

Unit Cell:

Length (Å)	Angle (°)
a = 137.329	α = 90.00
b = 137.329	β = 90.00
c = 197.801	γ = 120.00

Software Package:

Software Name	Purpose
CNS	refinement
HKL-2000	data reduction
HKL-2000	data collection
MLPHARE	phasing
CCP4	data scaling
TRUNCATE	data reduction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2002-10-16 
• Released Date: 2002-12-11 
• Deposition Author(s): Michaely, P., Tomchick, D.R., Machius, M., Anderson, R.G.W.

Revision History 

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