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Title: Design of an expression system to enhance MBP-mediated crystallization

Abstract

Crystallization chaperones have been used to facilitate the crystallization of challenging proteins. Even though the maltose-binding protein (MBP) is one of the most commonly used crystallization chaperones, the design of optimal expression constructs for crystallization of MBP fusion proteins remains a challenge. To increase the success rate of MBP-facilitated crystallization, a series of expression vectors have been designed with either a short flexible linker or a set of rigid helical linkers. Seven death domain superfamily members were tested for crystallization with this set of vectors, six of which had never been crystallized before. All of the seven targets were crystallized, and their structures were determined using at least one of the vectors. Our successful crystallization of all of the targets demonstrates the validity of our approach and expands the arsenal of the crystallization chaperone toolkit, which may be applicable to crystallization of other difficult protein targets, as well as to other crystallization chaperones.

Authors:
 [1];  [2];  [2];  [3];  [3];  [3];  [2];  [2];  [4]
  1. Univ. of Science and Technology of China, Hefei (China); National Inst. of Health (NIH), Bethesda, MD (United States)
  2. National Inst. of Health (NIH), Bethesda, MD (United States)
  3. Univ. of Science and Technology of China, Hefei (China)
  4. Case Western Reserve Univ., Cleveland, OH (United States)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Cancer Inst.; National Inst. of General Medical Sciences; China Postdoctoral Science Foundation
OSTI Identifier:
1357647
Grant/Contract Number:  
AC02-98CH10886; Y1-CO-1020; Y1-GM-1104; 2015M582007
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 7; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
ENGLISH
Subject:
59 BASIC BIOLOGICAL SCIENCES; X-ray crystallography

Citation Formats

Jin, Tengchuan, Chuenchor, Watchalee, Jiang, Jiansheng, Cheng, Jinbo, Li, Yajuan, Fang, Kang, Huang, Mo, Smith, Patrick, and Xiao, Tsan Sam. Design of an expression system to enhance MBP-mediated crystallization. United States: N. p., 2017. Web. doi:10.1038/srep40991.
Jin, Tengchuan, Chuenchor, Watchalee, Jiang, Jiansheng, Cheng, Jinbo, Li, Yajuan, Fang, Kang, Huang, Mo, Smith, Patrick, & Xiao, Tsan Sam. Design of an expression system to enhance MBP-mediated crystallization. United States. https://doi.org/10.1038/srep40991
Jin, Tengchuan, Chuenchor, Watchalee, Jiang, Jiansheng, Cheng, Jinbo, Li, Yajuan, Fang, Kang, Huang, Mo, Smith, Patrick, and Xiao, Tsan Sam. Mon . "Design of an expression system to enhance MBP-mediated crystallization". United States. https://doi.org/10.1038/srep40991. https://www.osti.gov/servlets/purl/1357647.
@article{osti_1357647,
title = {Design of an expression system to enhance MBP-mediated crystallization},
author = {Jin, Tengchuan and Chuenchor, Watchalee and Jiang, Jiansheng and Cheng, Jinbo and Li, Yajuan and Fang, Kang and Huang, Mo and Smith, Patrick and Xiao, Tsan Sam},
abstractNote = {Crystallization chaperones have been used to facilitate the crystallization of challenging proteins. Even though the maltose-binding protein (MBP) is one of the most commonly used crystallization chaperones, the design of optimal expression constructs for crystallization of MBP fusion proteins remains a challenge. To increase the success rate of MBP-facilitated crystallization, a series of expression vectors have been designed with either a short flexible linker or a set of rigid helical linkers. Seven death domain superfamily members were tested for crystallization with this set of vectors, six of which had never been crystallized before. All of the seven targets were crystallized, and their structures were determined using at least one of the vectors. Our successful crystallization of all of the targets demonstrates the validity of our approach and expands the arsenal of the crystallization chaperone toolkit, which may be applicable to crystallization of other difficult protein targets, as well as to other crystallization chaperones.},
doi = {10.1038/srep40991},
journal = {Scientific Reports},
number = 1,
volume = 7,
place = {United States},
year = {Mon Jan 23 00:00:00 EST 2017},
month = {Mon Jan 23 00:00:00 EST 2017}
}

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