Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report | Predict Membrane 

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 2.11 kDa 
• Atom Count: 152 
• Modelled Residue Count: 22 
• Deposited Residue Count: 22 
• Unique protein chains: 1

1BTQ

THE SOLUTION STRUCTURES OF THE FIRST AND SECOND TRANSMEMBRANE-SPANNING SEGMENTS OF BAND 3

• PDB DOI: 10.2210/pdb1BTQ/pdb

• Classification: ANION TRANSPORT
• Mutation(s): No 
• Membrane Protein: Yes  OPM


• Deposited: 1994-08-03 Released: 1994-11-30 
• Deposition Author(s): Gargaro, A.R., Bloomberg, G.B., Dempsey, C.E., Murray, M., Tanner, M.J.A.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Submitted: 1 

Literature

The solution structures of the first and second transmembrane-spanning segments of band 3.

Gargaro, A.R., Bloomberg, G.B., Dempsey, C.E., Murray, M., Tanner, M.J.

(1994) Eur J Biochem 221: 445-454

• PubMed: 8168533 
• Primary Citation of Related Structures:  
  1BTQ, 1BTR, 1BTS, 1BTT


• PubMed Abstract: 
  

We have studied the structures of synthetic peptides which correspond to the proposed first and second membrane-spanning segments of the human red cell anion transporter (band 3). The peptides, which were acetylated at their N-termini and amidated at the C-termini, comprise the 20 amino acids of residues 405-424 and 21 amino acids of residues 436-456 of the human band 3 sequence. The solution structures of the peptides in trifluoroethanol were studied by two-dimensional NMR spectroscopy. Characteristic NOEs were observed indicating that the peptides adopted a predominantly alpha-helical structure in trifluoroethanol solution. Dynamical simulated annealing using the program XPLOR was employed for the structure calculations. The amide exchange rates in trifluoroethanol have also been measured and are consistent with an alpha-helical structure for the peptides.

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Organizational Affiliation: 

Department of Biochemistry, School of Medical Sciences, University of Bristol, England.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BAND 3 ANION TRANSPORT PROTEIN	A	22	N/A	Mutation(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

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Submitted: 1 
• OLDERADO: 1BTQ Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1994-08-03 
• Released Date: 1994-11-30 
Deposition Author(s): Gargaro, A.R., Bloomberg, G.B., Dempsey, C.E., Murray, M., Tanner, M.J.A.

Revision History  

• Version 1.0: 1994-11-30
  Type: Initial release
  
• Version 1.1: 2008-03-24
  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, Other