A system for the production of soluble porcine pepsinogen A (EC 3.4.23.1) was developed by fusing the pepsinogen and thioredoxin genes and then expressing the fused product (Trx-PG) in Escherichia coli. The expressed fusion protein was purified using a combination of ion-exchange and hydrophobic chromatography. Trypsin digestion of the fusion protein yielded pepsinogen which was one residue lon...

The aim of the present study was to investigate the effects of recombinant Escherichia coli (E. coli) Trx-jingzhaotoxin (JZTX)-III on cell growth in the mouse hepatocellular carcinoma (HCC) cell line Hepa1-6. The JZTX-III gene sequence was synthesized and cloned into the pET-32a(+) vector to construct the recombinant fusion protein Trx-JZTX-III, which was subsequently purified. Hepa1-6 cells we...

The post-translational modifications of conopeptides are the most complicated to date and well-known closely related activity conopeptides. hydroxylation proline in affects folding, structure, biological activity, prolyl 4 hydroxylase has been characterized Conus literatus. However, machinery is still unclear. In order address mechanism μ-PIIIA, three recombinant plasmids encoding different hyb...

We report a novel fusion tag for expressing recombinant proteins in E. coli. The fusion tag is the C-terminus part of the human GMCSF gene comprising 45 amino acids, which aid in over expression of otherwise non expressible genes. Expression of hIFN 2b with this fusion tag also escapes the requirement of rare codons for expression. This is also a first report of a small fusion tag of human orig...

2-Cys peroxiredoxins (Prxs) play important roles in the protection of chloroplast proteins from oxidative damage. Arabidopsis NADPH-dependent thioredoxin reductase isotype C (AtNTRC) was identified as efficient electron donor for chloroplastic 2-Cys Prx-A. There are three isotypes (A, B, and C) of thioredoxin reductase (TrxR) in Arabidopsis. AtNTRA contains only TrxR domain, but AtNTRC consists...

Lysyl oxidase is an important extracellular matrix enzyme that has not been fully characterized due to its low solubility. In order to circumvent the low solubility of this enzyme, three solubility tags (Nus-A, Thioredoxin (Trx), and Glutathione-S-Transferase (GST)) were engineered on the N-terminus of mature lysyl oxidase. Total enzyme yields were determined to be 1.5 mg for the Nus-A tagged e...

diagnosis of toxoplasma gondii (t.gondii) infection is of great medical importance especially for pregnant women and immunosuppressed patients. numerous studies have shown that the recombinant production of several ttoxoplasma antigens, including dense granule antigens (gras) has a great potential as diagnostic reagents. previous studies reported expression of amino terminal gra8 protein in fus...

Chronic myeloid leukemia (CML) is a myeloproliferative disorder that caused by the formation of fusion onco-protein, BCR-ABL. Since BCR-ABL plays role in progression CML, most common treatments CML are tyrosine kinase inhibitors (TKIs) specifically target However, resistance to TKIs major problem treatment. A promising overcoming drug other cancers thioredoxin (TRX) system, an antioxidant syste...

During animal development, regions of the embryo become committed to position-specific identities, which are determined by spatially restricted expression of Hox/homeotic genes. This expression pattern is initially established by the activity of the segmentation genes and is subsequently maintained during the proliferative stage through the action of transcription factors encoded by the trithor...