Abstract:
:The presence of antibiotic resistance genes in genetically modified bacteria raises a regulatory concern in the production of therapeutic proteins and additionally reduces the number of plasmids available for propagation in a cell. Cre recombinase from bacteriophage P1, involved in Cre/loxP mechanism is one of the widely used systems for selectable marker gene removal. We have overexpressed codon-optimized cre gene in pColdIV and pET28a(+) vector systems and purified His6-Cre recombinase by immobilized metal affinity chromatography. N-terminal His6 tagged Cre recombinase obtained was approximately 26 fold purified and promoted the site-specific recombination of two loxP sites of linearized pLox2+ vector allowing the excision of a re-circularized plasmid and a short stretch of DNA containing the recombined loxP site. The results of the expression using two vectors, purification and activity assessment of His6 tagged Cre recombinase is presented here.
journal_name
Protein Expr Purifjournal_title
Protein expression and purificationauthors
D S,Shyam Mohan AH,Rao SNdoi
10.1016/j.pep.2019.105546subject
Has Abstractpub_date
2020-03-01 00:00:00pages
105546eissn
1046-5928issn
1096-0279pii
S1046-5928(19)30372-9journal_volume
167pub_type
杂志文章abstract::Stem cell factor (SCF) known as the c-kit ligand is a two disulfide bridge-containing cytokine in the regulation of the development and function of hematopoietic cell lineages and other cells such as mast cells, germ cells, and melanocytes. The secreted soluble form of SCF exists as noncovalently associated homodimer ...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2014.09.015
更新日期:2015-01-01 00:00:00
abstract::The fusion protein consisting of human Fas receptor extracellular domain and human IgG1 heavy chain Fc domain (hFasRECD-Fc) is a medically important protein that potentially has therapeutic uses. The fusion gene composed of a synthetic human Fas receptor extracellular domain gene and the cDNA encoding human IgG1 heavy...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2010.05.007
更新日期:2010-10-01 00:00:00
abstract::In this work we communicate the heterologous expression of a laccase from Coriolopsis gallica in Pichia pastoris. This enzyme has been reported to efficiently degrade a variety of pollutants such as industrial dyes. The expression strategy included using a previously reported modified α-factor preproleader for enhance...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2017.06.001
更新日期:2017-08-01 00:00:00
abstract::Interferon α-2a (IFNA2) is a member of the Type I interferon cytokine family, known for its antiviral and anti-proliferative functions. The role of this family in the innate immune response makes it an attractive candidate for the treatment of many viral and chronic immune-compromised diseases. Recombinant IFNA2 is cl...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2014.04.010
更新日期:2014-07-01 00:00:00
abstract::An internal fragment (978 bp) corresponding to the dog zona pellucida glycoprotein-3 (DZP3), excluding the N-terminal signal sequence and the C-terminal transmembrane-like domain, was amplified by polymerase chain reaction from a full-length cDNA clone. The amplified SacI and PstI restricted fragment was cloned in-fra...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1006/prep.1997.0869
更新日期:1998-04-01 00:00:00
abstract::Recombinant protein expression from lac derived promoters by the autoinduction regime is based on diauxic growth of Escherichia coli on glucose and lactose. Glycerol is used as a supporting carbon source during the lactose-induced expression. While this glycerol-based formulation usually provides high cell densities, ...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2013.07.016
更新日期:2013-10-01 00:00:00
abstract::Escherichia coli oligoribonuclease (EcoORN), encoded by the orn gene, is a 3'-5' exonuclease that degrades short single-stranded oligoribonucleotides to rNMPs in the final step of RNA degradation. The orn gene is essential in E. coli, but not in higher organisms, and close homologues are present in other genomes from ...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2007.10.005
更新日期:2008-02-01 00:00:00
abstract::An expression library was generated from a partial NcoI and HindIII digest of genomic DNA from the thermophilic bacterium, Bacillus stearothermophilus P1. The DNA fragments were cloned into the expression vector pQE-60 and transformed into Escherichia coli M15[EP4]. Sequence analysis of a lipase gene showed an open re...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1006/prep.2001.1456
更新日期:2001-08-01 00:00:00
abstract::Der p 2, a major allergen derived from the house dust mite Dermatophagoides pteronyssinus, is one of the most clinically relevant allergens worldwide. Recombinant Der p 2 (rDer p 2) is useful in clinical diagnosis and disease-specific immunotherapy. However, previous studies showed that Der p 2 can only be expressed i...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2016.01.012
更新日期:2016-05-01 00:00:00
abstract::An unknown d-tagatose 3-epimerase (DTE) containing a IoIE domain was identified and cloned from Escherichia coli. This gene was subcloned into the prokaryotic expression vector pET-15b, and induced by IPTG in E. coli BL21 expression system. Through His-select gel column purification and fast-protein liquid chromatogra...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2015.06.015
更新日期:2015-10-01 00:00:00
abstract::3-Deoxy-d-manno-octulosonate 8-phosphate synthase (KDO8PS) [EC 4.1.2.16] is the first and rate-limiting enzyme in the 3-deoxy-d-manno-octulosonate (KDO) biosynthetic pathway. The enzyme is widely expressed in bacteria and plants. Their well conserved protein sequences imply a similar oligomeric arrangement. However, t...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2014.06.010
更新日期:2014-09-01 00:00:00
abstract::Cell extracts of Clostridium kluyveri grown on ethanol plus succinate contained a NAD(H) dependent 4-hydroxybutanoate dehydrogenase (EC 1.1.1.61) at 66 U/mg. This enzyme was purified 42-fold under anaerobic conditions to homogeneity. Heat treatment, ion exchange chromatography on DEAE-cellulose, nondenaturing polyacry...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1006/prep.1995.1026
更新日期:1995-04-01 00:00:00
abstract::Protein expression using the secretory pathway in Saccharomyces cerevisiae can lead to high amounts of overexpressed and secreted proteins in culture supernatants in a short period of time. These post-translational modified expression products can be purified up to >90% in a single step. The overexpression and secreti...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1006/prep.2000.1337
更新日期:2001-02-01 00:00:00
abstract::Kynurenine 3-monooxygenase (KMO) is an enzyme central to the kynurenine pathway of tryptophan metabolism. KMO has been implicated as a therapeutic target in several disease states, including Huntington's disease. Recombinant human KMO protein production is challenging due to the presence of transmembrane domains, whic...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2013.11.015
更新日期:2014-03-01 00:00:00
abstract::PLD's (Phospholipases D) are ubiquitously expressed proteins involved in many transphosphatidylation reactions. They have a bi-lobed structure composed by two similar domains which at their interface reconstitute the catalytic site through the association of the two conserved HxKx(4)Dx(6)GSxN motifs. PLD1 interacts wi...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2008.02.012
更新日期:2008-06-01 00:00:00
abstract::Heterologous protein expression in Escherichia coli is commonly used to obtain recombinant proteins for a variety of downstream applications. However, many proteins are not, or are only poorly, expressed in soluble form. High level expression often leads to the formation of inclusion bodies and an inactive product tha...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2011.08.030
更新日期:2012-01-01 00:00:00
abstract::We have successfully expressed and purified active human glycogen synthase-1 (hGYS1). Successful production of the recombinant hGYS1 protein was achieved by co-expression of hGYS1 and rabbit glycogenin (rGYG1) using the MultiBac baculovirus expression system (BEVS). Functional measurements of activity ratios of hGYS1 ...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2013.05.007
更新日期:2013-08-01 00:00:00
abstract::A crude cell extract from yeast Saccharomyces cerevisae was fractionated by affinity chromatography using the leucine tRNA gene as the recognition site. This approach enables the rapid purification of a protein, which retained its full DNA binding capacity during the enrichment procedure. The active fraction contains ...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/1046-5928(90)90015-q
更新日期:1990-11-01 00:00:00
abstract::Accurate diagnosis is essential for the treatment, prevention, and control of tuberculosis. Poor specificity of the tuberculin skin test in BCG-vaccinated populations and constraints to implementation of PCR and CMI-based diagnostic assays in developing countries warrant development of easy-to perform robust serologic...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2005.04.014
更新日期:2005-11-01 00:00:00
abstract::Haloalkane dehalogenase from Xanthobacter autotrophicus was efficiently expressed in Escherichia coli BL21 (DE3) and E. coli JM101. After introduction of restriction sites by PCR the haloalkane dehalogenase gene (dhlA) was translationally fused behind the T7 (phi 10), trc, and tac promoters. This resulted in expressio...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1006/prep.1993.1063
更新日期:1993-10-01 00:00:00
abstract::Over-expression of heterologous proteins in Escherichia coli is commonly hindered by the formation of inclusion bodies. Nevertheless, refolding of proteins in vitro has become an essential requirement in the development of structural genomics (proteomics) and as a means of recovering functional proteins from inclusion...
journal_title:Protein expression and purification
pub_type: 杂志文章,评审
doi:10.1016/j.pep.2007.05.014
更新日期:2007-10-01 00:00:00
abstract::Keratinocyte growth factor (KGF) is a member of the fibroblast growth factor family that acts specifically on epithelial cells in a paracrine mode. We employed a mammalian expression system to synthesize recombinant human KGF and isolated two preparations, KGF-a and KGF-b, from medium conditioned by Chinese hamster ov...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1006/prep.1997.0840
更新日期:1998-03-01 00:00:00
abstract::The H-NS protein is one of the major constituents of the nucleoid structure that has been implicated in the DNA packaging and in the global regulation of gene expression. The study of this transcriptional regulator is an effort to fight Xylella fastidiosa, a citrus pathogen responsible for a range of economically impo...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/S1046-5928(03)00193-1
更新日期:2003-11-01 00:00:00
abstract::Cyclophilins are highly conserved proteins associated with peptidyl-prolyl cis-trans isomerase activity (PPIase). The present study was designed to analyze the biological activity of recombinant cyclophilin from the marine red algae Pyropia yezoensis (PyCyp). The cyclophilin gene from P. yezoensis was cloned into the ...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2020.105636
更新日期:2020-08-01 00:00:00
abstract::A new procedure for the large-scale purification of the recombinant thermostable chitinase (Chi40) cloned from Streptomyces thermoviolaceus in various expression vectors in Escherichia coli is described. Chi40 was overproduced in the cytosolic and secreted forms. The cytosolic form (Chi40c) was highly overproduced and...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1006/prep.2001.1490
更新日期:2001-10-01 00:00:00
abstract::Pullulanases are well-known starch-debranching enzymes that are widely used for hydrolysis of a-1,6-glycosidic linkages in starch, pullulan, amylopectin, and other oligosaccharides. Escherichia coli is a popular heterologous expression host for generating target enzymes. However, cells have to be disrupted to obtain t...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2018.09.011
更新日期:2019-03-01 00:00:00
abstract::The coding region for arginyl-tRNA synthetase from jack bean (Canavalia ensiformis) has been sequenced and cloned into the bacterial expression vector pET32a. Transformation of BL21 cells and induction with IPTG results in the high level expression of the protein fused N-terminally with thioredoxin and bearing a His-t...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2008.05.008
更新日期:2008-10-01 00:00:00
abstract::Protein phosphatase 2A (PP2A) contains a 36-kDa catalytic subunit (PP2Ac), a 65-kDa structural subunit (PR65/A), and a regulatory B subunit. The core enzyme consists of the structural and catalytic subunits. The catalytic subunit exists as two closely related isoforms, alpha and beta. Several natural toxins, including...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2005.06.002
更新日期:2006-01-01 00:00:00
abstract::Na+, K+-ATPase beta2 subunit (NKA1b2) is not only a regulator of Na+, K+-ATPase, but also functions in the interaction between neuron and glia cells as a Ca2+-dependent adhesion molecule. To further study the function of NKA1b2, the anti-NKA1b2 polyclonal antibody was prepared to recognize the outer-membrane carboxyl ...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2004.05.003
更新日期:2004-09-01 00:00:00
abstract::Antibodies specific to β-Glucocerebrosidase were selected from phage displayed naïve scFv libraries. Biopannings were performed against recombinant human protein β-Glucocerebrosidase immobilized on polystyrene surface, specific phages were eluted with 50% ethylene glycol in citrate buffer (pH 6.0). Several specific bi...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2020.105573
更新日期:2020-06-01 00:00:00