1BZK

STRUCTURAL STUDIES ON THE EFFECTS OF THE DELETION IN THE RED CELL ANION EXCHANGER (BAND3, AE1) ASSOCIATED WITH SOUTH EAST ASIAN OVALOCYTOSIS.


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 21 
  • Selection Criteria: NO NOE VIOLATIONS GREATER THAN 0.05 NM, NO DIHEDRAL VIOLATIONS GREATER THAN 5 DEGREES. 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structural studies on the effects of the deletion in the red cell anion exchanger (band 3, AE1) associated with South East Asian ovalocytosis.

Chambers, E.J.Bloomberg, G.B.Ring, S.M.Tanner, M.J.

(1999) J Mol Biol 285: 1289-1307

  • DOI: https://doi.org/10.1006/jmbi.1998.2392
  • Primary Citation of Related Structures:  
    1BZK

  • PubMed Abstract: 

    We have carried out a solution-state NMR study of synthetic peptides patterned on the first membrane span of normal human band 3, and the same region of the mutant band 3 present in Southeast Asian ovalocytosis (SAO) which has a nine amino acid deletion. In 1:1 (v/v) chloroform/methanol, the 42 residue normal peptide (R389-K430) consisted of three helical regions. The slow solvent exchange of backbone amide protons revealed the helix from P403 to A416 was more stable than the "cytoplasmic" N-terminal helix from P391 to A400. These helices were separated by a sharp bend at P403, which is probably located at the boundary between the cytoplasmic domain and the first transmembrane span. The SAO deletion (A400-A408) removed the bend at P403, to leave a stable helix from P391 to A416 containing the residuum of the normal first transmembrane helix and with a hydrophobic turn replaced by a polar turn in the SAO peptide. Insertion of fragments of normal band 3 and band 3 SAO into microsomal membranes was investigated using a cell free translation system. A fragment composed of the cytoplasmic domain and the putative first membrane domain of normal band 3 (B3(1)) inserted stably into the membrane. However, the corresponding fragment of band 3 SAO [SAO(1)] did not integrate stably into membranes. Our results suggest that in SAO band 3, the region of the first membrane span of normal band 3 does not integrate properly into the membrane because it lacks a sufficiently long hydrophobic segment, and the deletion also disrupts a conserved structural subdomain at the membrane surface.


  • Organizational Affiliation

    Department of Biochemistry School of Medical Sciences, University of Bristol, Bristol, BS8 1TD, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEIN (BAND 3 ANION TRANSPORT PROTEIN)43N/AMutation(s): 0 
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P02730 (Homo sapiens)
Explore P02730 
Go to UniProtKB:  P02730
PHAROS:  P02730
GTEx:  ENSG00000004939 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP02730
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 21 
  • Selection Criteria: NO NOE VIOLATIONS GREATER THAN 0.05 NM, NO DIHEDRAL VIOLATIONS GREATER THAN 5 DEGREES. 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-06-01
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-02-16
    Changes: Database references, Derived calculations
  • Version 1.4: 2023-12-27
    Changes: Data collection