Modeling Protein Complexes Using Restraints from Crosslinking Mass Spectrometry.
Modeling Protein Complexes Using Restraints from Crosslinking Mass Spectrometry.
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DOI:
10.1016/j.str.2018.04.016
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发表时间:
2018-07-03
期刊:
影响因子:
--
通讯作者:
Topf M
中科院分区:
文献类型:
--
作者:
Bullock JMA;Sen N;Thalassinos K;Topf M
Modeling macromolecular assemblies with restraints from crosslinking mass spectrometry (XL-MS) tends to focus solely on distance violation. Recently, we identified three different modeling features inherent in crosslink data: (1) expected distance between crosslinked residues; (2) violation of the crosslinker's maximum bound; and (3) solvent accessibility of crosslinked residues. Here, we implement these features in a scoring function. cMNXL, and demonstrate that it outperforms the commonlyused crosslink distance violation. We compare the different methods of calculating the distance between crosslinked residues, which shows no significant change in performance when using Euclidean distance compared with the solvent-accessible surface distance. Finally, we create a combined score that incorporates information from 3D electron microscopy maps as well as crosslinking. This achieves, on average, better results than either information type alone and demonstrates the potential of integrative modeling with XL-MS and low-resolution cryoelectron microscopy. A scoring function that outperforms more commonly used crosslink scoring methods A comparison of methods to calculate the distance between crosslinked residues Combining low-resolution 3D-EM and crosslinking information improves scoring Bullock et al. present a scoring function for modeling protein complexes based on crosslink data (cMNXL) that outperforms other functions currently in use. They also combine this method with a 3D-EM fitting score to create a combined scoring function that outperforms each score alone.
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影响因子:
64.5
作者:
Erzberger JP;Stengel F;Pellarin R;Zhang S;Schaefer T;Aylett CHS;Cimermančič P;Boehringer D;Sali A;Aebersold R;Ban N
通讯作者:
Ban N
DOI:
10.1074/mcp.m115.048504
发表时间:
2016-03
期刊:
Molecular & cellular proteomics : MCP
影响因子:
--
作者:
Belsom A;Schneider M;Fischer L;Brock O;Rappsilber J
通讯作者:
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DOI:
10.1073/pnas.1320298111
发表时间:
2014-07-01
影响因子:
11.1
作者:
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通讯作者:
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影响因子:
3.7
作者:
Kahraman A;Herzog F;Leitner A;Rosenberger G;Aebersold R;Malmström L
通讯作者:
Malmström L
影响因子:
3
作者:
Pettersen, EF;Goddard, TD;Ferrin, TE
通讯作者:
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