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Abbasian M, Eslampanah Seyedi HA, Sayed Tabatabaei BE, Arab-Bafrani Z, Mofid MR, Zareie R. Recombinant production, purification and characterization of vessel dilator in E. coli. Protein Expr Purif 2016; 129:75-83. [PMID: 27664437 DOI: 10.1016/j.pep.2016.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 09/10/2016] [Accepted: 09/20/2016] [Indexed: 10/21/2022]
Abstract
Vessel dilator is a 3.9-KDa potent anticancer peptide and a valuable candidate in the treatment of conditions such as congestive heart failure and acute renal failure amongst others. Here we report the recombinant production of vessel dilator in Escherichia coli. Three different synthetic ORF's dubbed VDI, VDII and VDIII, each encoding a trimmer of the vessel dilator peptide attached to a His tag sequence at their C- terminal, were synthesized and placed in pET21c expression vectors. The highest yield, following expression in E. coli BL21 (DE3), was recorded with VDII that carried the shortest fusion partner. Subsequent to the initial capture of the fusion protein by a Ni affinity column, the vessel dilator monomers were cleaved by trypsin treatment, and further purified to at least 90% homogeneity by anion exchange chromatography. De-novo sequencing and in vivo anticancer activity tests were used to verify the peptide sequence and its biological activity, respectively. The final yield was estimated to be approximately 15 mg of the purified vessel dilator per gram wet weight of the bacterial cells.
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Affiliation(s)
- Mahdi Abbasian
- Proteowa Pty Ltd, SABC, Murdoch University, 90 South Street, Murdoch, Western Australia, 6150, Australia; Department of Biotechnology, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Hadieh Alsadat Eslampanah Seyedi
- Department of Biotechnology, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran; Metabolic Disorders Research Center, School of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | | | - Zahra Arab-Bafrani
- Metabolic Disorders Research Center, School of Medicine, Golestan University of Medical Sciences, Gorgan, Iran; Department of Biochemistry and Biophysics, School of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Mohammad Reza Mofid
- Department of Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Reza Zareie
- Proteowa Pty Ltd, SABC, Murdoch University, 90 South Street, Murdoch, Western Australia, 6150, Australia.
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2
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Price R, Poursaid A, Ghandehari H. Controlled release from recombinant polymers. J Control Release 2014; 190:304-13. [PMID: 24956486 PMCID: PMC4142100 DOI: 10.1016/j.jconrel.2014.06.016] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 06/10/2014] [Accepted: 06/13/2014] [Indexed: 12/13/2022]
Abstract
Recombinant polymers provide a high degree of molecular definition for correlating structure with function in controlled release. The wide array of amino acids available as building blocks for these materials lend many advantages including biorecognition, biodegradability, potential biocompatibility, and control over mechanical properties among other attributes. Genetic engineering and DNA manipulation techniques enable the optimization of structure for precise control over spatial and temporal release. Unlike the majority of chemical synthetic strategies used, recombinant DNA technology has allowed for the production of monodisperse polymers with specifically defined sequences. Several classes of recombinant polymers have been used for controlled drug delivery. These include, but are not limited to, elastin-like, silk-like, and silk-elastinlike proteins, as well as emerging cationic polymers for gene delivery. In this article, progress and prospects of recombinant polymers used in controlled release will be reviewed.
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Affiliation(s)
- Robert Price
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, USA; Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, USA
| | - Azadeh Poursaid
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, USA; Department of Bioengineering, University of Utah, Salt Lake City, UT, USA
| | - Hamidreza Ghandehari
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, USA; Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, USA; Department of Bioengineering, University of Utah, Salt Lake City, UT, USA.
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3
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Martin SL, Vrhovski B, Weiss AS. Total synthesis and expression in Escherichia coli of a gene encoding human tropoelastin. Gene 1995; 154:159-66. [PMID: 7890158 DOI: 10.1016/0378-1119(94)00848-m] [Citation(s) in RCA: 162] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
To elucidate the structural features and interactions of tropoelastin (TEL) molecules which assist in giving the elastic fibre its physical properties, a 2210-bp synthetic human TEL-encoding gene (SHEL) was constructed for expression in Escherichia coli. To this end, a model of codon adjustment was tested which better suits the polypeptide biosynthetic needs of E. coli than the human sequence, where over one-third of this natural sequence contains expression-limiting rare codons and 4 amino acids alone account for 75% of the resulting polypeptide. This large synthetic TEL gene was expressed at a high level as the recombinant counterpart of human TEL and as a C-terminal fusion with glutathione S-transferase. This demonstrates that a synthetic approach based upon matching codon usage to that of the host organism can support significant expression of recombinant sequences. The synthetic gene incorporates the facility for simple cassette replacement in future insertion, deletion and mutagenesis experiments, including the introduction and removal of exon homologues. The resulting soluble polypeptide is easily purified and displays properties expected for this protein.
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Affiliation(s)
- S L Martin
- Department of Biochemistry, University of Sydney, NSW, Australia
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4
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Caruthers MH, Beaton G, Wu JV, Wiesler W. Chemical synthesis of deoxyoligonucleotides and deoxyoligonucleotide analogs. Methods Enzymol 1992; 211:3-20. [PMID: 1406312 DOI: 10.1016/0076-6879(92)11003-2] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- M H Caruthers
- Department of Chemistry and Biochemistry, University of Colorado, Boulder 80309
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5
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Ciccarelli RB, Gunyuzlu P, Huang J, Scott C, Oakes FT. Construction of synthetic genes using PCR after automated DNA synthesis of their entire top and bottom strands. Nucleic Acids Res 1991; 19:6007-13. [PMID: 1945885 PMCID: PMC329059 DOI: 10.1093/nar/19.21.6007] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
A new method is described for the direct construction of synthetic genes by applying a modified version of the polymerase chain reaction (PCR) to crude oligonucleotide mixtures made by automated solid phase DNA synthesis. Construction of the HIV-1 393 bp rev gene and the 655 bp nef gene by this method is illustrated. The sequences for the entire top and bottom strands of rev were each programmed into an automated DNA synthesizer. Following DNA synthesis, the two crude oligonucleotide solutions were mixed together, specific primers were added, and the target gene was amplified by a modified PCR technique. Although the longer (greater than 200 bases) strands comprise a very small percentage of the total DNA after solid phase synthesis, this method uses PCR to 'find' and amplify such strands to create the target gene. The rev gene constructed by this method was found to contain 4 sequence errors, which were subsequently corrected by site-directed mutagenesis. In order to evaluate the source of sequence errors, several nef genes were made from the top and bottom strand DNA synthesis solutions using independent PCR's. Results suggest that sequence errors arose from both DNA synthesis and PCR. The utility of this method in producing a functional gene is demonstrated by expression of rev in E.coli.
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Affiliation(s)
- R B Ciccarelli
- Department of Molecular Biology, Sterling Research Group, Rensselaer, NY 12144
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6
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Worrall AF, Evans C, Wilton DC. Synthesis of a gene for rat liver fatty-acid-binding protein and its expression in Escherichia coli. Biochem J 1991; 278 ( Pt 2):365-8. [PMID: 1898328 PMCID: PMC1151350 DOI: 10.1042/bj2780365] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A gene coding for rat liver fatty-acid-binding protein (FABP) has been constructed by the single-step ligation of ten synthetic oligonucleotides. The gene has been cloned into the bacterial expression vector pKK223-3. Induction of protein synthesis from this gene results in over expression of an FABP that is indistinguishable in its structure and binding properties with that isolated from rat liver.
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Affiliation(s)
- A F Worrall
- Department of Biochemistry, University of Southampton, U.K
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7
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8
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The chemical synthesis of a gene coding for bovine pancreatic DNase I and its cloning and expression in Escherichia coli. J Biol Chem 1990. [DOI: 10.1016/s0021-9258(18)45822-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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9
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Kálmán M, Cserpán I, Bajszár G, Dobi A, Horváth E, Pázmán C, Simoncsits A. Synthesis of a gene for human serum albumin and its expression in Saccharomyces cerevisiae. Nucleic Acids Res 1990; 18:6075-81. [PMID: 2235491 PMCID: PMC332408 DOI: 10.1093/nar/18.20.6075] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
A 1761 base pairs long artificial gene coding for human serum albumin (HSA) has been prepared by a newly developed synthetic approach, resulting in the largest synthetic gene so far described. Oligonucleotides corresponding to only one strand of the HSA gene were prepared by chemical synthesis, while the complementary strand was obtained by a combination of enzymatic and cloning steps. 24 synthetic, 69-85 nucleotides long oligonucleotides covering the major part of the HSA gene (41-1761 nucleotides) were used as building blocks. Generally, four groups of 6-6 such oligonucleotides were successively cloned in pUC19 Escherichia coli vector to obtain about quarters of the gene as large fragments. Joining of these four fragments resulted in a cloned DNA coding for the 13-585 amino acid region of HSA, which was further supplemented with a double-stranded linker sequence coding for the amino terminal 12 amino acids. The completed structural gene composed of frequently used codons in the highly expressed yeast genes was then supplied with yeast regulatory sequences and the HSA expression cassette so obtained was inserted into an Escherichia coli-Saccharomyces cerevisiae shuttle vector. This vector was shown to direct the expression in Saccharomyces cerevisiae of correctly processed, mature HSA which was recognized by antiserum to HSA, and possessed the correct N-terminal amino acid sequence.
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Affiliation(s)
- M Kálmán
- Institute of Genetics, Hungarian Academy of Sciences, Szeged
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10
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Shire D, Bourrié BJ, Carillon C, Derocq JM, Dousset P, Dumont X, Jansen FK, Kaghad M, Legoux R, Lelong P. Biologically active A-chain of the plant toxin ricin expressed from a synthetic gene in Escherichia coli. Gene 1990; 93:183-8. [PMID: 2227433 DOI: 10.1016/0378-1119(90)90223-e] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
To assess the biological activity and pharmacokinetic properties of nonglycosylated ricin A-chain (RA), we have obtained the polypeptide following expression of a synthetic 842-bp RA gene in Escherichia coli. Expression of the gene was carried out using the phage T5 PN25 promoter fused to the E. coli lac operator. The RA polypeptide was synthesized in a completely soluble form and was purified in one step by immunoabsorption. It was shown to be as cytotoxic for a human cell line as both native RA and chemically deglycosylated native RA. Reconstituted whole ricin and an immunotoxin containing the recombinant RA were also biologically active. Immunotoxins made with recombinant and deglycosylated RA had similar clearance rates in vivo showing, after a short period of rapid elimination, stabilities far higher than that of an immunotoxin made with native RA. Our results show that the complete elimination of sugar side chains from the RA is not sufficient to entirely eradicate the rapid initial in vivo clearance of RA-based biologicals.
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Affiliation(s)
- D Shire
- Unité de Chimie Organique, Sanofi Elf Bio Recherches, Labège, France
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Ciccarelli RB, Loomis LA, McCoon PE, Holzschu DL. Insertional gene synthesis, a novel method of assembling consecutive DNA sequences within specific sites in plasmids. Construction of the HIV-1 tat gene. Nucleic Acids Res 1990; 18:1243-8. [PMID: 2157195 PMCID: PMC330440 DOI: 10.1093/nar/18.5.1243] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The construction of the HIV-1 tat gene using a novel method termed insertional gene synthesis (IGS) is described. IGS is used to assemble a gene or any DNA sequence in a stepwise manner within a plasmid containing a single stranded DNA phage origin of replication. The IGS method is based upon consecutive targeted insertions of long DNA oligonucleotides (greater than 100 bases) within the plasmid by oligonucleotide-directed mutagenesis. IGS therefore involves synthesis of only a few oligonucleotides corresponding to one strand of a gene. Furthermore, the gene is synthesized directly adjacent to bacterial gene regulatory sequences for direct expression. Using this approach, the 261 bp tat gene was assembled in three successive cycles adjacent to the lac promoter in the pEMBL-derivative, pKH125. The 15 kD tat protein was produced from this synthetic gene in E. coli upon IPTG induction. However, it was necessary to tightly control the expression of tat by including the lac I gene directly within the tat expression vector.
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MESH Headings
- Amino Acid Sequence
- Base Sequence
- Blotting, Western
- Cloning, Molecular
- DNA Transposable Elements
- DNA, Viral/genetics
- Escherichia coli/genetics
- Gene Expression Regulation, Viral
- Gene Products, tat/genetics
- Genes, Synthetic
- Genes, Viral
- Genes, tat
- HIV-1/genetics
- Molecular Sequence Data
- Mutation
- Oligodeoxyribonucleotides/genetics
- Plasmids
- Promoter Regions, Genetic
- Regulatory Sequences, Nucleic Acid
- tat Gene Products, Human Immunodeficiency Virus
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Affiliation(s)
- R B Ciccarelli
- Department of Molecular Biology, Sterling Research Group, Sterling Drug Company, Rensselaer, NY 12144
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Vernet T, Tessier DC, Laliberté F, Dignard D, Thomas DY. The expression in Escherichia coli of a synthetic gene coding for the precursor of papain is prevented by its own putative signal sequence. Gene 1989; 77:229-36. [PMID: 2666263 DOI: 10.1016/0378-1119(89)90071-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A 1048-bp gene coding for prepropapain was assembled from chemically synthesized oligodeoxyribonucleotides and cloned into a variety of Escherichia coli expression plasmids. We observed loss of plasmid when the preproP gene was expressed in E. coli either as the native precursor or fused at the C terminus of the first 592 amino acids (aa) of beta-galactosidase (beta Gal). Deletion of the putative 26-aa signal peptide (pre-region) increased plasmid stability. The level of maintenance for the different plasmid constructs correlated with the level of expression detected by immunoblotting. Constitutive expression of the beta Gal-propapain fusion generated insoluble granules in a protease-deficient E. coli host. The fusion protein was easily purified to near homogeneity by differential solubilization of the granules.
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Affiliation(s)
- T Vernet
- Biotechnology Research Institute, National Research Council of Canada, Montréal, Québec
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