نتایج جستجو برای: protein purification
تعداد نتایج: 1275452 فیلتر نتایج به سال:
Structure- and Design-Based Difficulties in Recombinant Protein Purification in Bacterial Expression
Protein purification is not a simple task. Yet, overexpression at bacterial systems with recombinant modifications brings further difficulties. Adding tag, an affinity label, and expressing particular domains of the whole protein, especially hydrophobic sections, make challenging process. folding pattern may perturb N- or C-terminal tag this terminal preference lead to poor yield. Codon optimiz...
Within the research and development environment, higher throughput, parallelized protein purification is required for numerous activities, from small scale purification of monoclonal antibodies (mAbs) and antibody fragments for in vitro and in vivo assays to process development and optimization for manufacturing. Here, we describe specific applications and associated workflows of the Protein Ma...
BACKGROUND PhaR which is a repressor protein for microbial polyhydroxyalkanoates (PHA) biosynthesis, is able to attach to bacterial PHA granules in vivo, was developed as an affinity tag for in vitro protein purification. Fusion of PhaR-tagged self-cleavable Ssp DnaB intein to the N-terminus of a target protein allowed protein purification with a pH and temperature shift. During the process, th...
expression of htlv-i p19 protein in an escherichia coli expression system always leads to the formation of inclusion body. solubilisation and refolding of the inclusion bodies is complex, time consuming and difficult during large-scale preparation. this study aimed to express and purify a soluble form of recombinant htlv-i p19 protein in an e. coli expression system. the synthetic dna encoding ...
the development of a therapeutic vaccine against human papillomavirus (hpv) is important for the control of cervical cancer. e7 is the major transforming protein produced in cervical cancers, and therefore represents potential tumor-specific antigen that could be the target of immunotherapy for cervical cancer. among different vaccine strategies, protein-based vaccines are capable of generating...
Background: The purpose of this study was to clone, express, and purify a novel multidomain fusion protein of Micobacterium tuberculosis (Mtb) in a prokaryotic system. Methods: An hspX/esxS gene construct was synthesized and ligated into a pGH plasmid, E. coli TOP10 cells were transformed, and the vector was purified. The vector containing the construct and pET-21b (+) plasmid were digested ...
objective: helicobacter pylori is a spiral, microaerophilic gram negative bacterium, that multiplies and causes infection in human gastric mucosal layer. h.pylori infection, followed by destruction of gastric epithelial tissue, leads to gastric chronic inflammation, which can cause gastric and peptic ulcers. new approaches have focused on using specific treatments, such as immunotherapy, to era...
BACKGROUND Alkyl hydroperoxide reductase (AhpC) of Helicobacter pylori is considered as a diagnostic antigen. Therefore, this antigen can be used to detect H. pylori infection by stool immunoassays such as ELISA. The aim of this study was to simplify the AhpC protein purification procedures. METHODS For whole cell protein extraction, the bacterial cells were ruptured by octly-β-D glucopyranos...
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