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Sequence context strongly modulates association of polar residues in transmembrane helices.

J Mol Biol

August 2003

Department of Molecular Biophysics and Biochemistry, Yale University, Bass Centre Room 420A, 266 Whitney Avenue, New Haven, CT 06520-8114, USA.

Article Synopsis
  • Polar residues, like aspartic acid, asparagine, glutamic acid, and glutamine, can create hydrogen bonds between membrane-embedded helices, influencing their self-association.
  • Research explored how these polar residues interact in various transmembrane domains, including naturally occurring proteins and modified bacteriophage proteins.
  • Results showed that while some polar residues can stabilize interactions between helices, there are instances where they do not enhance association, indicating a complex control mechanism at play.
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