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Miyanoiri Y, Takeda M, Okuma K, Ono AM, Terauchi T, Kainosho M. Differential isotope-labeling for Leu and Val residues in a protein by E. coli cellular expression using stereo-specifically methyl labeled amino acids. JOURNAL OF BIOMOLECULAR NMR 2013; 57:237-249. [PMID: 24057411 DOI: 10.1007/s10858-013-9784-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 09/16/2013] [Indexed: 06/02/2023]
Abstract
The (1)H-(13)C HMQC signals of the (13)CH3 moieties of Ile, Leu, and Val residues, in an otherwise deuterated background, exhibit narrow line-widths, and thus are useful for investigating the structures and dynamics of larger proteins. This approach, named methyl TROSY, is economical as compared to laborious methods using chemically synthesized site- and stereo-specifically isotope-labeled amino acids, such as stereo-array isotope labeling amino acids, since moderately priced, commercially available isotope-labeled α-keto acid precursors can be used to prepare the necessary protein samples. The Ile δ1-methyls can be selectively labeled, using isotope-labeled α-ketobutyrates as precursors. However, it is still difficult to prepare a residue-selectively Leu and Val labeled protein, since these residues share a common biosynthetic intermediate, α-ketoisovalerate. Another hindering drawback in using the α-ketoisovalerate precursor is the lack of stereo-selectivity for Leu and Val methyls. Here we present a differential labeling method for Leu and Val residues, using four kinds of stereo-specifically (13)CH3-labeled [U-(2)H;(15)N]-leucine and -valine, which can be efficiently incorporated into a protein using Escherichia coli cellular expression. The method allows the differential labeling of Leu and Val residues with any combination of stereo-specifically isotope-labeled prochiral methyls. Since relatively small amounts of labeled leucine and valine are required to prepare the NMR samples; i.e., 2 and 10 mg/100 mL of culture for leucine and valine, respectively, with sufficient isotope incorporation efficiency, this approach will be a good alternative to the precursor methods. The feasibility of the method is demonstrated for 82 kDa malate synthase G.
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Affiliation(s)
- Yohei Miyanoiri
- Structural Biology Research Center, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602, Japan
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2
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Owusu-Ansah E, Durow AC, Harding JR, Jordan AC, O'Connell SJ, Willis CL. Synthesis of dysideaproline E using organocatalysis. Org Biomol Chem 2011; 9:265-72. [DOI: 10.1039/c0ob00617c] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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3
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Ardá A, Nieto MI, Blanco M, Jiménez C, Rodríguez J. Low-Temperature NMR J-Based Configurational Analysis of Flexible Acyclic Systems. J Org Chem 2010; 75:7227-32. [DOI: 10.1021/jo101331e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ana Ardá
- Departamento de Química Fundamental, Facultad de Ciencias Universidade da Coruña. Campus da Zapateira, 15071 A Coruña, Spain
| | - Maria Isabel Nieto
- Departamento de Química Fundamental, Facultad de Ciencias Universidade da Coruña. Campus da Zapateira, 15071 A Coruña, Spain
| | - María Blanco
- Departamento de Química Fundamental, Facultad de Ciencias Universidade da Coruña. Campus da Zapateira, 15071 A Coruña, Spain
| | - Carlos Jiménez
- Departamento de Química Fundamental, Facultad de Ciencias Universidade da Coruña. Campus da Zapateira, 15071 A Coruña, Spain
| | - Jaime Rodríguez
- Departamento de Química Fundamental, Facultad de Ciencias Universidade da Coruña. Campus da Zapateira, 15071 A Coruña, Spain
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4
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Affiliation(s)
- Ying Jin
- Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, University Town of Shenzhen, Xili, Nanshan District, Shenzhen, China, 518055, and Department of Applied Biology & Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Yuqing Liu
- Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, University Town of Shenzhen, Xili, Nanshan District, Shenzhen, China, 518055, and Department of Applied Biology & Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Zhuo Wang
- Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, University Town of Shenzhen, Xili, Nanshan District, Shenzhen, China, 518055, and Department of Applied Biology & Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Shuqin Kwong
- Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, University Town of Shenzhen, Xili, Nanshan District, Shenzhen, China, 518055, and Department of Applied Biology & Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Zhengshuang Xu
- Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, University Town of Shenzhen, Xili, Nanshan District, Shenzhen, China, 518055, and Department of Applied Biology & Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Tao Ye
- Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, University Town of Shenzhen, Xili, Nanshan District, Shenzhen, China, 518055, and Department of Applied Biology & Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
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5
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Ardá A, G. Soengas R, Nieto MI, Jiménez C, Rodríguez J. Total Synthesis of (−)-Dysithiazolamide. Org Lett 2008; 10:2175-8. [DOI: 10.1021/ol800551g] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ana Ardá
- Departamento de Química Fundamental, Facultade de Ciencias, Campus da Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
| | - Raquel G. Soengas
- Departamento de Química Fundamental, Facultade de Ciencias, Campus da Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
| | - M. Isabel Nieto
- Departamento de Química Fundamental, Facultade de Ciencias, Campus da Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
| | - Carlos Jiménez
- Departamento de Química Fundamental, Facultade de Ciencias, Campus da Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
| | - Jaime Rodríguez
- Departamento de Química Fundamental, Facultade de Ciencias, Campus da Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
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6
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Caubert V, Massé J, Retailleau P, Langlois N. Stereoselective formal synthesis of the potent proteasome inhibitor: salinosporamide A. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2006.11.087] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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7
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Durow AC, Long GC, O'Connell SJ, Willis CL. Total Synthesis of the Chlorinated Marine Natural Product Dysamide B. Org Lett 2006; 8:5401-4. [PMID: 17078728 DOI: 10.1021/ol062279f] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[Structure: see text] Two approaches to the synthesis of (2S,4S)-5,5-dichloroleucine are compared, and the parent amino acid was used in the first total synthesis of the polychlorinated marine natural product, dysamide B. A key step was the lead tetraacetate-mediated decarboxylation of an alpha,alpha-dichloro acid in the presence of 1,4-cyclohexadiene to generate the dichloromethyl group.
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Affiliation(s)
- Amanda C Durow
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK
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8
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Ardá A, Jiménez C, Rodríguez J. Polychlorinated Leucine Derivatives: Synthesis of (2S,4R)-5,5-Dichloroleucine and ItsJ-Based Analysis. European J Org Chem 2006. [DOI: 10.1002/ejoc.200600154] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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9
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Flatt PM, O'Connell SJ, McPhail KL, Zeller G, Willis CL, Sherman DH, Gerwick WH. Characterization of the initial enzymatic steps of barbamide biosynthesis. JOURNAL OF NATURAL PRODUCTS 2006; 69:938-44. [PMID: 16792414 DOI: 10.1021/np050523q] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Barbamide is a mixed polypeptide-polyketide natural product that contains an unusual trichloromethyl group. The origin of the trichloromethyl group was previously shown to be through chlorination of the pro-R methyl group of L-leucine. Trichloroleucine is subsequently decarboxylated and oxidized to trichloroisovaleric acid and then extended with an acetate unit to form the initial seven carbons of barbamide. In this study we used a combination of biosynthetic feeding experiments and enzymatic analysis to characterize the initial steps required for formation of trichloroleucine and its chain-shortened product, trichloroisovaleric acid. Results from isotope-labeled feeding experiments showed that both dichloroleucine and trichloroleucine are readily incorporated into barbamide; however, monochloroleucine is not. This suggests that halogenation of the pro-R methyl group of leucine occurs as two discrete reactions, with the first involving incorporation of at least two halogen atoms and the second converting dichloroleucine to trichloroleucine. Additionally, the initial tandem dichlorination must occur before substrate can be further processed by the remainingbar pathway enzymes. In vitro analysis of the first five open reading frames (ORFs; barA, barB1, barB2, bar C, barD) of the barbamide gene cluster has yielded new insights into the processing of leucine to form the trichloroisovaleryl-derived unit in the final product.
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Affiliation(s)
- Patricia M Flatt
- College of Pharmacy, Oregon State University, Corvallis, Oregon 97331, USA
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10
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Valls N, Borregán M, Bonjoch J. Synthesis of β-chloro α-amino acids: (2S,3R)- and (2S,3S)-3-chloroleucine. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.03.127] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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11
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Galonić DP, Vaillancourt FH, Walsh CT. Halogenation of Unactivated Carbon Centers in Natural Product Biosynthesis: Trichlorination of Leucine during Barbamide Biosynthesis. J Am Chem Soc 2006; 128:3900-1. [PMID: 16551084 DOI: 10.1021/ja060151n] [Citation(s) in RCA: 137] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The in vitro reconstitution of leucine halogenation during barbamide biosynthesis has been accomplished. It has been demonstrated that the triple chlorination of the unactivated pro-R methyl group of the peptidyl carrier protein-tethered l-Leu substrate is carried out by the tandem action of two nonheme iron(II)-dependent halogenases, BarB1 and BarB2. Investigation of the substrate specificities of each of the halogenating enzymes revealed their complementary roles in the generation of trichloroleucine.
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Affiliation(s)
- Danica P Galonić
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, USA
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Ardá A, Rodríguez J, Nieto RM, Bassarello C, Gomez-Paloma L, Bifulco G, Jiménez C. NMR J-based analysis of nitrogen-containing moieties and application to dysithiazolamide, a new polychlorinated dipeptide from Dysidea sp. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.08.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Abstract
The total synthesis of cyclomarin C was accomplished through a convergent strategy from a tetrapeptide fragment and a tripeptide one. The developed methods to prepare the needed noncoded amino acids, the proper protection of peptide fragments, and identification of the optimum macrocylization site can be applied to further synthetic studies on other members of cyclomarins. [structure: see text]
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Affiliation(s)
- Shi-Jun Wen
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
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