The primary virulence of soft rot pectobacteria, including Pectobacterium brasiliense, is mainly determined by the massive production plant cell wall-degrading enzymes (PCWDEs), which promote tissue maceration in many crops. antibiotic treatment to treat bacterial causes environmental problems and potentially affects resistance. Antibiotic resistance driving interest antimicrobial treatments, n...

Azurin is a natural protein produced by Pseudomonas aeruginosa that exhibits potential anti-tumor, anti-HIV, and anti-parasitic properties. The current study aimed to investigate the of azurin against breast cancer using both in silico vitro analyses. amino acid sequence was used predict its secondary tertiary structures, along with physicochemical properties, online software. resulting structu...

tissue plasminogen activator (tpa) is a serine protease, which is composed of five distinct structural domains with 17 disulfide bonds, representing a model of high-disulfide proteins in human body. one of the most important limitations for high yield heterologous protein production in escherichia coli (e. coli) is the expression of complex proteins with multiple disulfide bridges. in this stud...

Bovine pancreatic ribonuclease A (RNase A) has been the object of much landmark work in biological chemistry. Yet the application of the techniques of protein engineering to RNase A has been limited by problems inherent in the isolation and heterologous expression of its gene. A cDNA library was prepared from cow pancreas, and from this library the cDNA that codes for RNase A was isolated. This...

Myoglobin is one of the early biomarkers for acute myocardial infarction. Recently, we have screened an antibody with unique rapid reaction kinetics toward human myoglobin antigen. Antibodies with rapid reaction kinetics are thought to be an early IgG form produced during early stage of in vivo immunization. We produced a recombinant scFv fragment for the premature antibody from Escherichia col...

Pullulanase is a well-known starch-debranching enzyme. However, the production level of pullulanase is yet low in both wide-type strains and heterologous expression systems. We predicted the disorder propensities of Bacillus naganoensis pullulanase (PUL) using the bioinformatics tool, Disorder Prediction Meta-Server. On the basis of disorder prediction, eight constructs, including PULΔN5, PULΔN...

Rana catesbeiana ribonuclease (RC-RNase) is a pyrimidine-guanine sequence-specific ribonuclease found in R. catesbeiana (bullfrog) oocytes. It possesses both ribonuclease activity and cytotoxicity against tumor cells. We report here for the first time the cloning of RC-RNase cDNA from liver rather than from oocytes where RC-RNase is stored. An internal fragment of cDNA was obtained by reverse t...

Genetic optimizations to achieve high-level production of three different proteins of medical importance for humans, granulocyte-macrophage colony-stimulating factor (GM-CSF), interferon alpha 2b (IFN-alpha2b), and single-chain antibody variable fragment (scFv-phOx), were investigated during high-cell-density cultivations of Escherichia coli. All three proteins were poorly expressed when put un...