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8 articles for “Affinity Chromatography”

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Research ArticleOpen accessIn the keywordsInfluence of Tags on the Binding Affinity of Acyl-CoA Binding ProteinJizhong Han, Yunlong Sun, Yu Chen et al.Tagged fusion proteins are frequently employed for protein purification methods, but their effects on protein function and binding affinity are rarely studied. Here we expressed recombinant protein Acyl-CoA Binding Protein (ACBP) cloned from the full-length cDNA of Aspergillus oryzae and Saccharomyces cerevisiae. ACBP was expressed in Escherichia coli fused to a Maltose-Binding Protein (MBP) and Histidine-tag fusion. Recombinant ACBP was … …American Journal of Biochemistry and Biotechnology, Vol. 15, Issue 1 · 23 Jan 2019 · 9,097 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEmerging Trends in Designing Short and Efficient Protein Purification ProtocolsSaurabh Gautam, Joyeeta Mukherjee, Ipsita Roy, Munishwar Nath GuptaProtein purification is carried out in both academic and industrial sectors. Both non-chromatographic approaches (precipitation, crystallization, partitioning) and chromatographic methods are used. When recombinant proteins are over expressed in foreign hosts, inclusion bodies are obtained. Many purification methods can be used to refold proteins. Many strategies allow one to avoid formation of inclusion bodies. The concept of affinity based separation … …American Journal of Biochemistry and Biotechnology, Vol. 8, Issue 4 · 25 Dec 2012 · 9,007 accessesView PDFCite
Research ArticleOpen accessIn the abstractEnhancement of Geobacillus thermodenitrificans Lipase Activity and Binding Affinity by Acetone Treatment: Kinetic and in silico InvestigationsAmmar Khazaal Kadhim Almansoori, Alyaa Abdulhussein Alsaedi et al.Lipase Geobacillus thermodenitrificans (LipGt) is a thermostable enzyme that has an optimal activity temperature of 65°C. It can tolerate various organic solvents and has an improved activity, especially in the presence of acetone. In this study, in-vitro and in-silico studies were carried out to investigate the effect of acetone in enhancing the kinetic and binding affinity of LipGt. The LipGt … …American Journal of Biochemistry and Biotechnology, Vol. 20, Issue 4 · 10 Oct 2024 · 4,817 accessesView PDFCite
Research ArticleOpen accessIn the abstractMolecular Cloning and Heterologous Expression of Human Interferon Alpha2b GeneI. Made Artika, Yemima Budirahardja, Anna Lucia EkowatiHuman alpha Interferons (hIFNα) have been shown to have antiviral, antiproliferative and immunomodulatory activities. The human interferon alpha2b (hIFNα2b), is one of the human interferon alpha2 sub variants, naturally synthesized as a polypeptide of 188 amino acid residues, the first 23 residues of which represents a signal peptide. In the present study, the hIFNα2b gene was expressed after being fused … …American Journal of Biochemistry and Biotechnology, Vol. 9, Issue 4 · 20 Dec 2013 · 7,835 accessesView PDFCite
Research ArticleOpen accessIn the abstractBiotransformation Using Recombinant Cmp Sialic Acid Synthetase and α-2, 6-Sialyltran Sferase: Enzymatic Synthesis of SialosidesUlrike Hubl, Cynthia Sun, Shuguang Zhang et al.In this research, we successfully expressed recombinant CMP-sialic Acid Synthetase (CSS) from Neisseria meningitides and 2,6-Sialyltransferase (SAT) from Photobacterium damsela in E. coli BL21(DE3) fermented at a scale of up to 8 litres using individual plasmids pIRL-1 and pIRL-4b, respectively. After cell lysis with BugBuster, enzyme levels of 2U and 22U per litre were produced for CSS and SAT, respectively. … …American Journal of Biochemistry and Biotechnology, Vol. 8, Issue 4 · 25 Dec 2012 · 8,854 accessesView PDFCite
Research ArticleOpen accessIn the abstractHigh-Yield Production of Bioactive Flatfish (Paralichthys olivaceus) Myostatin-1 Prodomain in Escherichia coliIl Shik Shin, Hyung-Joo Jin, Jeong Hwan Kim et al.Myostatin Propeptide (MstnPro), the N-terminal part of Mstn precursor molecule, binds to Mstn and suppress its activity. Mstn is a potent negative regulator of skeletal muscle growth in many animal species, thus MstnPro has a great potential to be used as an agent to enhance skeletal muscle growth in animal species. Bioactive fish Myostatin-1 Propeptide (Mstn1Pro) proteins were recently expressed … …American Journal of Biochemistry and Biotechnology, Vol. 8, Issue 3 · 20 Sep 2012 · 8,012 accessesView PDFCite
Research ArticleOpen accessIn the abstractExtraction and Purification of Collagenase Enzymes: A Critical ReviewSaid M Daboor, Suzanne M Budge, Abdel E Ghaly et al.Problem statement: Enzymes have vital roles in several industrial processes (foods, cosmetics, nutraceuticals and pharmaceuticals) due to their highly selective nature and high activity at very low concentrations. Recent efforts to identify new sources of useful enzymes have been concentrated on the marine environment because of the potential to make use of processing wastes. About 35-50% of the mass of … …American Journal of Biochemistry and Biotechnology, Vol. 6, Issue 4 · 31 Dec 2010 · 14,311 accessesView PDFCite
Research ArticleOpen accessIn the abstractPurification of A Recombinant Thrombin-like Enzyme, Gloshedobin by Egg Yolk Antibody-Coupled AdsorbentsQing Yang, Xuyu Lei, Jianqiang Xu, Lijia AnThe gloshedobin, a snake venom thrombin-like enzyme was biosynthesized in the soluble form and purified by egg yolk antibody-coupled adsorbents from E. coli. As His-tag is not favored from the point of view of high-level and soluble expression, we herein constructed a recombinant gloshedobin without His-tag and developed a novel egg yolk antibody (IgY)-immunoaffinity chromatography for its purification in a … …American Journal of Biochemistry and Biotechnology, Vol. 1, Issue 1 · 31 Mar 2005 · 6,690 accessesView PDFCite