How fast is too fast in force-probe molecular dynamics simulations?
While molecular dynamics (MD) simulations are routinely used to interpret atomic force microscopy (AFM) experiments of protein unfolding, computational cost in MD simulations still mostly imposes a large difference in loading rates and time scales in this comparison. Loading rate dependencies of unf...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article (Journal) |
| Language: | English |
| Published: |
April 10, 2019
|
| In: |
The journal of physical chemistry. B, Biophysics, biomaterials, liquids, and soft matter
Year: 2019, Volume: 123, Issue: 17, Pages: 3658-3664 |
| ISSN: | 1520-5207 |
| DOI: | 10.1021/acs.jpcb.9b01251 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1021/acs.jpcb.9b01251
|
| Author Notes: | Steven Sheridan, Frauke Gräter, and Csaba Daday |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1691904341 | ||
| 003 | DE-627 | ||
| 005 | 20220818010721.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 200309s2019 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1021/acs.jpcb.9b01251 |2 doi | |
| 035 | |a (DE-627)1691904341 | ||
| 035 | |a (DE-599)KXP1691904341 | ||
| 035 | |a (OCoLC)1341309684 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 27 |2 sdnb | ||
| 100 | 1 | |a Sheridan, Steven |e VerfasserIn |0 (DE-588)1206205385 |0 (DE-627)1691984183 |4 aut | |
| 245 | 1 | 0 | |a How fast is too fast in force-probe molecular dynamics simulations? |c Steven Sheridan, Frauke Gräter, and Csaba Daday |
| 264 | 1 | |c April 10, 2019 | |
| 300 | |a 7 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Published as part of "The journal of physical chemistry virtual" special issue "Young scientists" | ||
| 500 | |a Gesehen am 10.03.2020 | ||
| 520 | |a While molecular dynamics (MD) simulations are routinely used to interpret atomic force microscopy (AFM) experiments of protein unfolding, computational cost in MD simulations still mostly imposes a large difference in loading rates and time scales in this comparison. Loading rate dependencies of unfolding forces and mechanisms have been studied in depth in experiments, simulations, and theory. One potential additional implication of the larger MD pulling velocity that remains to be assessed is that regions of the proteins that are close to the point of force application will be under force earlier or under more force than more shielded regions, resulting in a bias of the protein unfolding sequence which is likely marginal at the slower AFM velocities. We here, for the first time, quantify the parameters of this bias using a model system of four tandem spectrin repeats (SRs) linked with long, flexible poly-glycine linkers. We subject the system to seven different pulling velocities ranging from 0.01 to 10 m/s and find that for the fastest velocities, down to 1 m/s, the outer domains preferentially unfold; in fact, at 10 m/s, this happened in 100 cases out of 100. On the basis of these data, and also through analyzing the amount of partial unfolding in the beginning of the simulations, we show that the bias is equivalent to an effective signal propagation of 5-100 m/s, which is about 2 orders of magnitude slower than the expected speed of sound. Our results can help in identifying and removing this bias from future simulations. | ||
| 700 | 1 | |a Gräter, Frauke |e VerfasserIn |0 (DE-588)130664871 |0 (DE-627)505296764 |0 (DE-576)298331314 |4 aut | |
| 700 | 1 | |a Daday, Csaba |e VerfasserIn |0 (DE-588)1155486730 |0 (DE-627)1017754942 |0 (DE-576)501674284 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t The journal of physical chemistry. B, Biophysics, biomaterials, liquids, and soft matter |d Washington, DC : Americal Chemical Society, 1997 |g 123(2019), 17, Seite 3658-3664 |h Online-Ressource |w (DE-627)320450953 |w (DE-600)2006039-7 |w (DE-576)090889002 |x 1520-5207 |7 nnas |a How fast is too fast in force-probe molecular dynamics simulations? |
| 773 | 1 | 8 | |g volume:123 |g year:2019 |g number:17 |g pages:3658-3664 |g extent:7 |a How fast is too fast in force-probe molecular dynamics simulations? |
| 856 | 4 | 0 | |u https://doi.org/10.1021/acs.jpcb.9b01251 |x Verlag |x Resolving-System |z lizenzpflichtig |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20200309 | ||
| 993 | |a Article | ||
| 994 | |a 2019 | ||
| 998 | |g 1206205385 |a Sheridan, Steven |m 1206205385:Sheridan, Steven |p 1 |x j | ||
| 998 | |g 1155486730 |a Daday, Csaba |m 1155486730:Daday, Csaba |p 3 |y j | ||
| 998 | |g 130664871 |a Gräter, Frauke |m 130664871:Gräter, Frauke |d 700000 |d 708000 |e 700000PG130664871 |e 708000PG130664871 |k 0/700000/ |k 1/700000/708000/ |p 2 | ||
| 999 | |a KXP-PPN1691904341 |e 3605326188 | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"recId":"1691904341","relHost":[{"type":{"bibl":"periodical","media":"Online-Ressource"},"title":[{"partname":"Biophysics, biomaterials, liquids, and soft matter","title":"The journal of physical chemistry","title_sort":"journal of physical chemistry"}],"part":{"issue":"17","extent":"7","volume":"123","text":"123(2019), 17, Seite 3658-3664","pages":"3658-3664","year":"2019"},"physDesc":[{"extent":"Online-Ressource"}],"disp":"How fast is too fast in force-probe molecular dynamics simulations?The journal of physical chemistry. B, Biophysics, biomaterials, liquids, and soft matter","titleAlt":[{"title":"The journal of physical chemistry <Washington, DC> / B"},{"title":"Condensed matter, materials, surfaces, interfaces & biophysical chemistry"}],"name":{"displayForm":["American Chemical Society"]},"language":["eng"],"id":{"issn":["1520-5207"],"eki":["320450953"],"zdb":["2006039-7"]},"note":["Gesehen am 30.05.2023"],"origin":[{"publisherPlace":"Washington, DC","dateIssuedKey":"1997","dateIssuedDisp":"1997-","publisher":"Americal Chemical Society"}],"pubHistory":["101.1997 -"],"recId":"320450953"}],"origin":[{"dateIssuedDisp":"April 10, 2019","dateIssuedKey":"2019"}],"note":["Published as part of \"The journal of physical chemistry virtual\" special issue \"Young scientists\"","Gesehen am 10.03.2020"],"person":[{"family":"Sheridan","given":"Steven","display":"Sheridan, Steven","role":"aut"},{"family":"Gräter","role":"aut","given":"Frauke","display":"Gräter, Frauke"},{"role":"aut","given":"Csaba","display":"Daday, Csaba","family":"Daday"}],"title":[{"title":"How fast is too fast in force-probe molecular dynamics simulations?","title_sort":"How fast is too fast in force-probe molecular dynamics simulations?"}],"id":{"doi":["10.1021/acs.jpcb.9b01251"],"eki":["1691904341"]},"physDesc":[{"extent":"7 S."}],"type":{"bibl":"article-journal","media":"Online-Ressource"},"language":["eng"],"name":{"displayForm":["Steven Sheridan, Frauke Gräter, and Csaba Daday"]}} | ||
| SRT | |a SHERIDANSTHOWFASTIST1020 | ||