Please use this identifier to cite or link to this item: http://dx.doi.org/10.25673/113752
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dc.contributor.authorLauer, Christian-
dc.contributor.authorPaul, Wolfgang-
dc.date.accessioned2024-01-29T11:24:19Z-
dc.date.available2024-01-29T11:24:19Z-
dc.date.issued2023-
dc.identifier.urihttps://opendata.uni-halle.de//handle/1981185920/115708-
dc.identifier.urihttp://dx.doi.org/10.25673/113752-
dc.description.abstractThis study presents a numerical investigation of the dimerization of polyglutamine homo-peptides of varying length. It employs the PRIME20 intermediate resolution protein model and studies it with a flat-histogram type Monte Carlo simulation that gives access to the thermodynamic equilibrium of this model over the complete control parameter range (for the simulations this is temperature). For densities comparable to typical in vitro experimental conditions, this study finds that the aggregation and folding of the polyglutamine chains occur concurrently. However, as a function of chain length the sequence of establishment of intra- and intermolecular hydrogen bonding contacts changes. Chains longer than about N = 24 polyglutamine repeat units fold first and then aggregate. This agrees well with the experimental finding that, beyond N = 24 the single polyglutamine chain is the critical nucleus for the aggregation of amyloid fibrils. A finite size scaling of the ordering temperatures reveals that for this chain length (and longer chains) folding occurs at physiological (respectively larger) temperatures, whereas shorter chains are disordered at physiological conditions.eng
dc.language.isoeng-
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/-
dc.subject.ddc530-
dc.titleDimerization of polyglutamine within the PRIME20 model using stochastic approximation Monte Carloeng
dc.typeArticle-
local.versionTypepublishedVersion-
local.bibliographicCitation.journaltitleMacromolecular theory and simulations-
local.bibliographicCitation.volume32-
local.bibliographicCitation.issue5-
local.bibliographicCitation.pagestart1-
local.bibliographicCitation.pageend11-
local.bibliographicCitation.publishernameWiley-VCH-
local.bibliographicCitation.publisherplaceWeinheim-
local.bibliographicCitation.doi10.1002/mats.202200075-
local.openaccesstrue-
dc.identifier.ppn1853389358-
cbs.publication.displayform2023-
local.bibliographicCitation.year2023-
cbs.sru.importDate2024-01-29T11:23:55Z-
local.bibliographicCitationEnthalten in Macromolecular theory and simulations - Weinheim : Wiley-VCH, 1992-
local.accessrights.dnbfree-
Appears in Collections:Open Access Publikationen der MLU