Secondary Forces in Protein Folding

© 2019 American Chemical Society. A complete inventory of the forces governing protein folding is critical for productive protein modeling, including structure prediction and de novo design, as well as understanding protein misfolding diseases of clinical significance. The dominant contributors to p...

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Main Authors: Newberry, Robert W., Raines, Ronald T
Other Authors: Massachusetts Institute of Technology. Department of Chemistry
Format: Article
Language:English
Published: American Chemical Society (ACS) 2020
Online Access:https://hdl.handle.net/1721.1/128549
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author Newberry, Robert W.
Raines, Ronald T
author2 Massachusetts Institute of Technology. Department of Chemistry
author_facet Massachusetts Institute of Technology. Department of Chemistry
Newberry, Robert W.
Raines, Ronald T
author_sort Newberry, Robert W.
collection MIT
description © 2019 American Chemical Society. A complete inventory of the forces governing protein folding is critical for productive protein modeling, including structure prediction and de novo design, as well as understanding protein misfolding diseases of clinical significance. The dominant contributors to protein folding include the hydrophobic effect and conventional hydrogen bonding, along with Coulombic and van der Waals interactions. Over the past few decades, important additional contributors have been identified, including C-H···O hydrogen bonding, n→π∗ interactions, C5 hydrogen bonding, chalcogen bonding, and interactions involving aromatic rings (cation-π, X-H···π, π-π, anion-π, and sulfur-arene). These secondary contributions fall into two general classes: (1) weak but abundant interactions of the protein main chain and (2) strong but less frequent interactions involving protein side chains. Though interactions with high individual energies play important roles in specifying nonlocal molecular contacts and ligand binding, we estimate that weak but abundant interactions are likely to make greater overall contributions to protein folding, particularly at the level of secondary structure. Further research is likely to illuminate additional roles of these noncanonical interactions and could also reveal contributions yet unknown.
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spelling mit-1721.1/1285492022-09-26T16:08:54Z Secondary Forces in Protein Folding Newberry, Robert W. Raines, Ronald T Massachusetts Institute of Technology. Department of Chemistry © 2019 American Chemical Society. A complete inventory of the forces governing protein folding is critical for productive protein modeling, including structure prediction and de novo design, as well as understanding protein misfolding diseases of clinical significance. The dominant contributors to protein folding include the hydrophobic effect and conventional hydrogen bonding, along with Coulombic and van der Waals interactions. Over the past few decades, important additional contributors have been identified, including C-H···O hydrogen bonding, n→π∗ interactions, C5 hydrogen bonding, chalcogen bonding, and interactions involving aromatic rings (cation-π, X-H···π, π-π, anion-π, and sulfur-arene). These secondary contributions fall into two general classes: (1) weak but abundant interactions of the protein main chain and (2) strong but less frequent interactions involving protein side chains. Though interactions with high individual energies play important roles in specifying nonlocal molecular contacts and ligand binding, we estimate that weak but abundant interactions are likely to make greater overall contributions to protein folding, particularly at the level of secondary structure. Further research is likely to illuminate additional roles of these noncanonical interactions and could also reveal contributions yet unknown. NIH (Grant R01-GM044783) 2020-11-20T19:08:55Z 2020-11-20T19:08:55Z 2019-06 2020-11-19T17:53:33Z Article http://purl.org/eprint/type/JournalArticle 1554-8929 1554-8937 https://hdl.handle.net/1721.1/128549 Newberry, Robert W. and Ronald T. Raines. "Secondary Forces in Protein Folding." ACS Chemical Biology 14, 8 (June 2019): 1677–1686 © 2019 American Chemical Society en http://dx.doi.org/10.1021/acschembio.9b00339 ACS Chemical Biology Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Chemical Society (ACS) PMC
spellingShingle Newberry, Robert W.
Raines, Ronald T
Secondary Forces in Protein Folding
title Secondary Forces in Protein Folding
title_full Secondary Forces in Protein Folding
title_fullStr Secondary Forces in Protein Folding
title_full_unstemmed Secondary Forces in Protein Folding
title_short Secondary Forces in Protein Folding
title_sort secondary forces in protein folding
url https://hdl.handle.net/1721.1/128549
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