Talk:Beta barrel

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Fold: DNA-binding pseudobarrel domain

Hi, what do You think about "Fold: DNA-binding pseudobarrel domain SCOP 101935"? Should we put "open barrel fold" into this article? Cheers. Redeemer079 (talk) 20:19, 24 March 2008 (UTC)[reply]

I see that the "OB fold" is one of the top ten folds that are found. Its occurrence is 3.7%, compared to 4.3% for the TIM barrel. (from "The Protein Chart", Garrett, R. C. & Orengo, C. A. Published by Wiley-VCH, 2008.) I suggest giving it a separate page, since the TIM barrel has a separate page. --Christopher King (talk) 17:25, 1 January 2009 (UTC)[reply]

Update of Dynamical features section

This update has been challenged as COI. Please weigh in. — Preceding unsigned comment added by Jon33dn (talk • contribs) 00:22, 21 February 2015 (UTC)[reply]

Beta-barrels in proteins may carry out low-frequency breathing-like motion as observed by the Raman spectroscopy ^[1] and analyzed with the quasi-continuum model. ^[2] In fact, the beta-barrel protein GFP has been shown by neutron scattering to undergo collective motions at ~1 THz.^[3] These motions are thought to be sensitive to local rigidity within proteins, revealing beta structures to be generically more rigid than alpha or disordered proteins.^[4]^[5]

For more about the low-frequency collective motions in biomacromolecules and its biological function, see low-frequency collective motion in proteins and DNA. — Preceding unsigned comment added by Jon33dn (talk • contribs) 23:48, 20 February 2015 (UTC)[reply]

References

^ Painter, P.C., Mosher, L.E. and Rhoads, C. (1982) Low-frequency modes in the Raman spectra of proteins" Biopolymers 21, 1469-1472.
^ Kuo-Chen Chou (1985) Low-frequency motions in protein molecules: beta-sheet and beta-barrel" Biophysical Journal 48, 289-297.
^ Nickels JD, Perticaroli S, O’Neill H, Zhang Q, Ehlers G, Sokolov AP. Coherent Neutron Scattering and Collective Dynamics in the Protein, GFP. Biophysical journal 2013;105:2182-2187
^ Perticaroli S, Nickels JD, Ehlers G, O'Neill H, Zhang Q, Sokolov AP. Secondary structure and rigidity in model proteins. Soft Matter 2013;9:9548-9556
^ Perticaroli S, Nickels JD, Ehlers G, Sokolov AP. Rigidity, secondary structure, and the Universality of the Boson Peak in Proteins. Biophysical journal 2014;106:2667-2674

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[1] Painter, P.C., Mosher, L.E. and Rhoads, C. (1982) Low-frequency modes in the Raman spectra of proteins" Biopolymers 21, 1469-1472.

[2] Kuo-Chen Chou (1985) Low-frequency motions in protein molecules: beta-sheet and beta-barrel" Biophysical Journal 48, 289-297.

[3] Nickels JD, Perticaroli S, O’Neill H, Zhang Q, Ehlers G, Sokolov AP. Coherent Neutron Scattering and Collective Dynamics in the Protein, GFP. Biophysical journal 2013;105:2182-2187

[4] Perticaroli S, Nickels JD, Ehlers G, O'Neill H, Zhang Q, Sokolov AP. Secondary structure and rigidity in model proteins. Soft Matter 2013;9:9548-9556

[5] Perticaroli S, Nickels JD, Ehlers G, Sokolov AP. Rigidity, secondary structure, and the Universality of the Boson Peak in Proteins. Biophysical journal 2014;106:2667-2674

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