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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Engelman, D. M. Senes, A. Ubarretxena-belandia, I. |
| Description | Author Affiliation: Senes A ( Department of Molecular Biophysics and Biochemistry, Yale University, P.O. Box 208114, New Haven, CT 06520, USA.); |
| Abstract | The Calpha---H...O hydrogen bond has been given little attention as a determinant of transmembrane helix association. Stimulated by recent calculations suggesting that such bonds can be much stronger than has been supposed, we have analyzed 11 known membrane protein structures and found that apparent carbon alpha hydrogen bonds cluster frequently at glycine-, serine-, and threonine-rich packing interfaces between transmembrane helices. Parallel right-handed helix-helix interactions appear to favor Calpha---H...O bond formation. In particular, Calpha---H...O interactions are frequent between helices having the structural motif of the glycophorin A dimer and the GxxxG pair. We suggest that Calpha---H...O hydrogen bonds are important determinants of stability and, depending on packing, specificity in membrane protein folding. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 16 |
| Volume Number | 98 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2001-08-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Hydrogen Bonding Membrane Proteins Chemistry Amino Acid Sequence Glycine Protein Conformation Serine Threonine Research Support, U.S. Gov't, Non-P.H.S. Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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