5A16

Crystal structure of Fab4201 raised against Human Erythrocyte Anion Exchanger 1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.213 
  • R-Value Observed: 0.215 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

Crystal Structure of the Anion Exchanger Domain of Human Erythrocyte Band 3

Arakawa, T.Kobayashi-Yugiri, T.Alguel, Y.Iwanari, H.Hatae, H.Iwata, M.Abe, Y.Hino, T.Ikeda-Suno, C.Kuma, H.Kang, D.Murata, T.Hamakubo, T.Cameron, A.Kobayashi, T.Hamasaki, N.Iwata, S.

(2015) Science 350: 680

  • DOI: 10.1126/science.aaa4335
  • Primary Citation of Related Structures:  
    4YZF, 5A16

  • PubMed Abstract: 
  • Anion exchanger 1 (AE1), also known as band 3 or SLC4A1, plays a key role in the removal of carbon dioxide from tissues by facilitating the exchange of chloride and bicarbonate across the plasma membrane of erythrocytes. An isoform of AE1 is also present in the kidney ...

    Anion exchanger 1 (AE1), also known as band 3 or SLC4A1, plays a key role in the removal of carbon dioxide from tissues by facilitating the exchange of chloride and bicarbonate across the plasma membrane of erythrocytes. An isoform of AE1 is also present in the kidney. Specific mutations in human AE1 cause several types of hereditary hemolytic anemias and/or distal renal tubular acidosis. Here we report the crystal structure of the band 3 anion exchanger domain (AE1(CTD)) at 3.5 angstroms. The structure is locked in an outward-facing open conformation by an inhibitor. Comparing this structure with a substrate-bound structure of the uracil transporter UraA in an inward-facing conformation allowed us to identify the anion-binding position in the AE1(CTD), and to propose a possible transport mechanism that could explain why selected mutations lead to disease.


    Organizational Affiliation

    Japan Science and Technology Agency (JST), Exploratory Research for Advanced Technology (ERATO) Human Receptor Crystallography Project, Konoe-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan. JST, Research Acceleration Program, Membrane Protein Crystallography Project, Konoe-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan. Department of Cell Biology, Kyoto University Faculty of Medicine, Konoe-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan. Division of Molecular Biosciences, Membrane Protein Crystallography group, Imperial College London, London SW7 2AZ, UK. Membrane Protein Laboratory, Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Chilton, Oxfordshire OX11 0DE, UK. Research Complex at Harwell Rutherford, Appleton Laboratory, Harwell Oxford, Didcot, Oxfordshire OX11 0FA, UK. Platform for Drug Discovery, Informatics, and Structural Life Science, Konoe-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
FAB4201 HEAVY CHAINA, C, E, G236Mus musculusMutation(s): 0 
UniProt
Find proteins for A0A0M3KL48 (Mus musculus)
Explore A0A0M3KL48 
Go to UniProtKB:  A0A0M3KL48
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A0M3KL48
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
FAB4201 HEAVY CHAINB, D, F, H218Mus musculusMutation(s): 0 
UniProt
Find proteins for A0A0M3KL49 (Mus musculus)
Explore A0A0M3KL49 
Go to UniProtKB:  A0A0M3KL49
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A0M3KL49
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.213 
  • R-Value Observed: 0.215 
  • Space Group: P 41
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 82.19α = 90
b = 82.19β = 90
c = 270.38γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-06-10
    Type: Initial release
  • Version 1.1: 2015-11-04
    Changes: Database references
  • Version 1.2: 2015-11-18
    Changes: Database references
  • Version 2.0: 2019-10-23
    Changes: Atomic model, Data collection, Other