Macromolecule Content

• Total Structure Weight: 8908.83 
• Atom Count: 628 
• Residue Count: 80 
• Unique protein chains: 1

1AFO

DIMERIC TRANSMEMBRANE DOMAIN OF HUMAN GLYCOPHORIN A, NMR, 20 STRUCTURES

• DOI: 10.2210/pdb1AFO/pdb

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


• Deposited: 1997-03-11 Released: 1997-09-17 
• Deposition Author(s): Mackenzie, K.R., Prestegard, J.H., Engelman, D.M.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 38 
• Conformers Submitted: 20 
• Selection Criteria: LEAST RESTRAINT VIOLATIONS 

Literature

A transmembrane helix dimer: structure and implications.

MacKenzie, K.R., Prestegard, J.H., Engelman, D.M.

(1997) Science 276: 131-133

• PubMed: 9082985 


• PubMed Abstract: 
  

The three-dimensional structure of the dimeric transmembrane domain of glycophorin A (GpA) was determined by solution nuclear magnetic resonance spectroscopy of a 40-residue peptide solubilized in aqueous detergent micelles. The GpA membrane-spanning alpha helices cross at an angle of -40 degrees and form a small but well-packed interface that lacks intermonomer hydrogen bonds. The structure provides an explanation for the previously characterized sequence dependence of GpA dimerization and demonstrates that van der Waals interactions alone can mediate stable and specific associations between transmembrane helices.

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Related Citations: 

• Leucine Side-Chain Rotamers in a Glycophorin a Transmembrane Peptide as Revealed by Three-Bond Carbon-Carbon Couplings and 13C Chemical Shifts
  Mackenzie, K.R.,Prestegard, J.H.,Engelman, D.M.
  (1996) J.Biomol.NMR 7: 256
• Structure Determination of the Dimeric Membrane Spanning Domain of Glycophorin a in Detergent Micelles by Triple Resonance Nuclear Magnetic Resonance Spectroscopy
  Mackenzie, K.R.
  (1996) Thesis, Yale University --: --




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Organizational Affiliation: 

Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520-8114, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
GLYCOPHORIN A	A, B	40	Homo sapiens	Mutation(s): 0  Gene Names: GYPA (GPA)
Membrane protein mpstruc	Group:  TRANSMEMBRANE PROTEINS: ALPHA-HELICAL		Sub Group:  Glycoproteins	Protein:  Glycophorin A (GpA) transmembrane-domain dimer
Find proteins for P02724 (Homo sapiens) Go to Gene View: GYPA Go to UniProtKB:  P02724

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 38 
• Conformers Submitted: 20 
• Selection Criteria: LEAST RESTRAINT VIOLATIONS 
• Olderado: 1AFO Olderado

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1997-03-11 
• Released Date: 1997-09-17 
• Deposition Author(s): Mackenzie, K.R., Prestegard, J.H., Engelman, D.M.

Revision History 

• Version 1.0: 1997-09-17
  Type: Initial release
• Version 1.1: 2008-03-24
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance