The hydrophobic effect characterises the thermodynamic signature of amyloid fibril growth.
Journal
PLoS computational biology
ISSN: 1553-7358
Titre abrégé: PLoS Comput Biol
Pays: United States
ID NLM: 101238922
Informations de publication
Date de publication:
05 2020
05 2020
Historique:
received:
20
12
2019
accepted:
02
03
2020
revised:
09
06
2020
pubmed:
5
5
2020
medline:
28
7
2020
entrez:
5
5
2020
Statut:
epublish
Résumé
Many proteins have the potential to aggregate into amyloid fibrils, protein polymers associated with a wide range of human disorders such as Alzheimer's and Parkinson's disease. The thermodynamic stability of amyloid fibrils, in contrast to that of folded proteins, is not well understood: the balance between entropic and enthalpic terms, including the chain entropy and the hydrophobic effect, are poorly characterised. Using a combination of theory, in vitro experiments, simulations of a coarse-grained protein model and meta-data analysis, we delineate the enthalpic and entropic contributions that dominate amyloid fibril elongation. Our prediction of a characteristic temperature-dependent enthalpic signature is confirmed by the performed calorimetric experiments and a meta-analysis over published data. From these results we are able to define the necessary conditions to observe cold denaturation of amyloid fibrils. Overall, we show that amyloid fibril elongation is associated with a negative heat capacity, the magnitude of which correlates closely with the hydrophobic surface area that is buried upon fibril formation, highlighting the importance of hydrophobicity for fibril stability.
Identifiants
pubmed: 32365068
doi: 10.1371/journal.pcbi.1007767
pii: PCOMPBIOL-D-19-02211
pmc: PMC7282669
doi:
Substances chimiques
Amyloid
0
Amyloid beta-Peptides
0
Amyloidogenic Proteins
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
e1007767Déclaration de conflit d'intérêts
The authors have declared that no competing interests exist.
Références
PLoS One. 2014 Aug 06;9(8):e104492
pubmed: 25100247
Phys Rev Lett. 1994 Jun 13;72(24):3907-3910
pubmed: 10056327
ACS Chem Neurosci. 2017 Mar 15;8(3):538-547
pubmed: 28292187
Angew Chem Int Ed Engl. 2006 May 5;45(19):3022-60
pubmed: 16619322
Adv Protein Chem. 1991;41:173-315
pubmed: 2069076
J Chem Phys. 2016 May 7;144(17):175101
pubmed: 27155653
Proc Natl Acad Sci U S A. 2006 Nov 7;103(45):16764-9
pubmed: 17075061
J Am Chem Soc. 2014 Aug 20;136(33):11776-82
pubmed: 25068615
Phys Rev E Stat Nonlin Soft Matter Phys. 2003 Oct;68(4 Pt 2):046703
pubmed: 14683075
Phys Rev Lett. 2016 Feb 19;116(7):078101
pubmed: 26943560
Annu Rev Phys Chem. 2015 Apr;66:643-66
pubmed: 25648485
Nat Phys. 2016 Sep;12(9):874-880
pubmed: 31031819
Phys Chem Chem Phys. 2017 Oct 25;19(41):27930-27934
pubmed: 29028061
Curr Opin Struct Biol. 2017 Feb;42:117-128
pubmed: 28040640
J Phys Chem B. 2010 Sep 2;114(34):10925-38
pubmed: 20695458
J Mol Biol. 2006 Jan 20;355(3):501-23
pubmed: 16321400
J Am Chem Soc. 2017 Nov 15;139(45):16134-16142
pubmed: 28994295
Proc Natl Acad Sci U S A. 1993 Aug 1;90(15):7195-9
pubmed: 8346235
Proc Natl Acad Sci U S A. 2000 Jul 18;97(15):8324-7
pubmed: 10890881
J Mol Biol. 2010 Apr 9;397(4):932-46
pubmed: 20156459
J Phys Chem B. 2015 Aug 27;119(34):11416-27
pubmed: 26102155
Nature. 2007 May 24;447(7143):453-7
pubmed: 17468747
Phys Rev E Stat Nonlin Soft Matter Phys. 2015 Feb;91(2):022711
pubmed: 25768535
PLoS One. 2014 Jan 15;9(1):e85185
pubmed: 24454816
J Chem Phys. 2016 May 28;144(20):205103
pubmed: 27250331
Nature. 2005 Jun 9;435(7043):773-8
pubmed: 15944695
Angew Chem Int Ed Engl. 2014 Jul 21;53(30):7799-804
pubmed: 24920162
J Am Chem Soc. 2016 Jan 20;138(2):527-39
pubmed: 26694883
Proteins. 2003 Sep 1;52(4):510-23
pubmed: 12910451
Angew Chem Int Ed Engl. 2008;47(27):5046-8
pubmed: 18521826
Nat Commun. 2018 Oct 30;9(1):4517
pubmed: 30375379
J Mol Biol. 1983 Aug 5;168(2):389-407
pubmed: 6887247
J Phys Chem B. 2010 Mar 25;114(11):4010-9
pubmed: 20199038
Cryobiology. 2010 Feb;60(1):91-9
pubmed: 19616532
J Chem Theory Comput. 2019 Jun 11;15(6):3868-3874
pubmed: 31038946
Biochim Biophys Acta. 2006 Mar;1764(3):452-60
pubmed: 16337233
Protein Eng. 1993 Nov;6(8):793-800
pubmed: 8309926
J Mol Biol. 2005 Jun 17;349(4):872-89
pubmed: 15893325
Proc Natl Acad Sci U S A. 2016 Aug 23;113(34):E4976-84
pubmed: 27469165
Biophys J. 2011 Feb 2;100(3):693-700
pubmed: 21281584
Phys Chem Chem Phys. 2019 Dec 4;21(47):26184-26194
pubmed: 31755512
Nat Struct Mol Biol. 2016 May;23(5):409-15
pubmed: 27018801
Proc Natl Acad Sci U S A. 2013 Jan 29;110(5):E368-76
pubmed: 23284170
Nucleic Acids Res. 2018 Jan 4;46(D1):D387-D392
pubmed: 29040693
Biophys Chem. 1994 Jun;50(3):285-91
pubmed: 8011949
Biophys J. 2007 Feb 15;92(4):1150-6
pubmed: 17142295
J Phys Chem B. 2017 Apr 20;121(15):3250-3261
pubmed: 27776213
Angew Chem Int Ed Engl. 2012 May 21;51(21):5247-51
pubmed: 22489083
J Biol Chem. 2004 Dec 31;279(53):55308-14
pubmed: 15494406
J Mol Biol. 1994 Feb 4;235(5):1614-36
pubmed: 8107095
FEBS Lett. 2004 Oct 22;576(3):313-9
pubmed: 15498554
Proc Natl Acad Sci U S A. 2014 May 27;111(21):7671-6
pubmed: 24817693
Proc Natl Acad Sci U S A. 2002 May 14;99(10):6539-43
pubmed: 11983853
Biophys J. 2011 Jun 8;100(11):2783-91
pubmed: 21641324
Biophys Chem. 2001 Nov 28;93(2-3):215-30
pubmed: 11804727
J Phys Chem B. 2016 Jun 2;120(21):4756-66
pubmed: 27137845
J Mol Biol. 2006 Aug 18;361(3):551-61
pubmed: 16859705
Phys Rev Lett. 2013 Aug 2;111(5):058101
pubmed: 23952447
PLoS Comput Biol. 2015 May 22;11(5):e1004277
pubmed: 26000449
PLoS Comput Biol. 2006 Dec 15;2(12):e170
pubmed: 17173479
Clin Infect Dis. 2003 May 1;36(9):1152-4
pubmed: 12715310
J Am Chem Soc. 2011 Sep 14;133(36):14160-3
pubmed: 21650202
Biophys Chem. 2000 May 15;84(3):239-51
pubmed: 10852311
Biochem J. 2019 Oct 15;476(19):2677-2703
pubmed: 31654060
Phys Rev E Stat Nonlin Soft Matter Phys. 2004 Nov;70(5 Pt 1):051917
pubmed: 15600666
Nature. 2005 Sep 29;437(7059):640-7
pubmed: 16193038
FEBS Lett. 2010 Feb 19;584(4):780-4
pubmed: 20067793
J Mol Biol. 2007 Aug 10;371(2):283-301
pubmed: 17582437
Proc Natl Acad Sci U S A. 2005 May 3;102(18):6297-302
pubmed: 15851687
J Mol Biol. 2005 Sep 23;352(3):700-11
pubmed: 16098535
Proteins. 1998 Jan;30(1):2-33
pubmed: 9443337