Abstract The preparation of stable isotope-labeled proteins is necessary for the application of a wide variety of NMR methods, to study the structures and dynamics of proteins and protein complexes. The E. coli expression system is generally used for the production of isotope-labeled proteins, because of the advantages of ease of handling, rapid growth, high-level protein production, and low cost for isotope-labeling. However, many eukaryotic proteins are not functionally expressed in E. coli, due to problems related to disulfide bond formation, post-translational modifications, and folding. In such cases, other expression systems are required for producing proteins for biomolecular NMR analyses. In this paper, we review the recent advances in expression systems for isotopically labeled heterologous proteins, utilizing non-E. coli prokaryotic and eukaryotic cells.
Content Type Journal Article
Pages 3-10
DOI 10.1007/s10858-009-9377-0
Authors
Hideo Takahashi, National Institute of Advanced Industrial Science and Technology (AIST) Biomedicinal Information Research Center (BIRC) Aomi, Koto-ku Tokyo 135-0064 Japan
Ichio Shimada, National Institute of Advanced Industrial Science and Technology (AIST) Biomedicinal Information Research Center (BIRC) Aomi, Koto-ku Tokyo 135-0064 Japan
Mammalian production of an isotopically enriched outer domain of the HIV-1 gp120 glycoprotein for NMR spectroscopy.
Mammalian production of an isotopically enriched outer domain of the HIV-1 gp120 glycoprotein for NMR spectroscopy.
Mammalian production of an isotopically enriched outer domain of the HIV-1 gp120 glycoprotein for NMR spectroscopy.
J Biomol NMR. 2011 Jun 12;
Authors: Sastry M, Xu L, Georgiev IS, Bewley CA, Nabel GJ, Kwong PD
NMR spectroscopic characterization of the structure or the dynamics of proteins generally requires the production of samples isotopically enriched in (15)N, (13)C, or (2)H. The bacterial expression systems currently in use to...
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06-15-2011 01:15 PM
Mammalian production of an isotopically enriched outer domain of the HIV-1 gp120 glycoprotein for NMR spectroscopy
Mammalian production of an isotopically enriched outer domain of the HIV-1 gp120 glycoprotein for NMR spectroscopy
Abstract NMR spectroscopic characterization of the structure or the dynamics of proteins generally requires the production of samples isotopically enriched in 15N, 13C, or 2H. The bacterial expression systems currently in use to obtain isotopic enrichment, however, cannot produce a number of eukaryotic proteins, especially those that require post-translational modifications such as N-linked glycosylation for proper folding or activity. Here, we report the use of an...
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06-15-2011 02:31 AM
[NMR paper] NMR screening and crystal quality of bacterially expressed prokaryotic and eukaryotic
NMR screening and crystal quality of bacterially expressed prokaryotic and eukaryotic proteins in a structural genomics pipeline.
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11-24-2010 11:14 PM
[NMR paper] Semisynthesis of a segmental isotopically labeled protein splicing precursor: NMR evi
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Protein splicing is a posttranslational autocatalytic process in which an intervening sequence, termed an intein, is...
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11-24-2010 09:51 PM
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Authors: Dutta A, Rao BJ, Chary KV
MutH is one of the enzymes involved in the methyl directed -GATC-based DNA repair system. We report a significantly optimized protocol to prepare isotopically (15N and/or 13C) labeled MutH in minimal medium with high yields for NMR studies. Under the various...
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11-24-2010 09:01 PM
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Proteins
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11-07-2010 02:47 PM
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Mol Biosyst. 2010 Oct 18;
Authors: Wagstaff JL, Howard MJ, Williamson RA
The integrin ?v?6 is up-regulated in several cancers and has clinical potential for both tumour imaging and therapy. Peptide ligands have been developed...