Editing Beta sheet (section)

==Dynamic features==

β-pleated sheet structures are made from extended β-strand polypeptide chains, with strands linked to their neighbours by [[hydrogen bonds]]. Due to this extended backbone conformation, β-sheets resist [[stretching]]. β-sheets in proteins may carry out [[low-frequency collective motion in proteins and DNA|low-frequency]] accordion-like motion as observed by the [[Raman spectroscopy]]<ref name="pmid7115900">{{cite journal | vauthors = Painter PC, Mosher LE, Rhoads C | title = Low-frequency modes in the Raman spectra of proteins | journal = Biopolymers | volume = 21 | issue = 7 | pages = 1469–72 | date = July 1982 | pmid = 7115900 | doi = 10.1002/bip.360210715 | doi-access =  }}</ref> and analyzed with the quasi-continuum model.<ref name="pmid4052563">{{cite journal | vauthors = Chou KC | title = Low-frequency motions in protein molecules. Beta-sheet and beta-barrel | journal = Biophysical Journal | volume = 48 | issue = 2 | pages = 289–97 | date = August 1985 | pmid = 4052563 | pmc = 1329320 | doi = 10.1016/S0006-3495(85)83782-6 | bibcode = 1985BpJ....48..289C }}</ref>