Background: The expression of mouse tumor necrosis factor alpha (TNF-α) in Escherichia coli is a favorable way to get high yield of protein; however, the formation of cytoplasmic inclusion bodies, which is the consequence of insoluble accumulated proteins, is a major obstacle in this system. To overcome this obstacle, we used a pulsed dilution method to convert the product to its native c...

Acriflavine (3,6-diaminoacridine) is an anticeptic drug developed in 1912. Previous research has focused on investigation of the intercalating features of acriflavine, but little is known about its interaction with proteins. Drug-receptor interaction is of major interest in clinical science. The aim of the present study was to evaluate the ability of acriflavine to induce alterations in conform...

A fully quantitative theory of the relationship between protein conformation and optical spectroscopy would facilitate deeper insights into biophysical simulation studies dynamics folding. In contrast to intense bands in far-ultraviolet, near-UV are much weaker have been challenging compute theoretically. We report some advances accuracy calculations near-UV, which were realised through conside...

infectious bursal disease virus (ibdv) is the causative agent of gumboro disease, an infectious disease of global economic importance in poultry. structural protein vp2 of ibdv is the most frequently studied protein due to its significant roles in virus attachment, protective immunity, and serotype specificity. the objective of the present study was to improve the expression of hypervariable re...

Recognition of functional partners is a pivotal factor in the regulation protein interactions. The areas direct contact between complementary molecules that interact according to Koshland’s "key - lock" scheme deserve special attention. relevance study this kind interactions obvious. In case simplest serine proteinases increased affinity enzyme certain area target ensured by synchronous interac...

  Introduction: Omp31 is animmunodominant and protective antigen conserved in Brucella species and a good candidate for vaccine design. Material & methods: The present study aimed at in silico design of the truncated Omp31 (TOmp31) using bioinformatic tools and to express the selected form in Escherichia coli (E. coli) Results and conclusion: Various bioinformatically calculated scores for the ...

Abstract Nanochannel technology has emerged as a powerful tool for label‐free and highly sensitive detection of protein folding/unfolding status. However, utilizing the inner walls nanochannel array may cause multiple events even proteins with same conformation, posing challenges accurate identification. Herein, we present platform to detect unfolded through electrical optical signals using arr...

Rapid and robust methods are required to quantify the effect of hydrodynamic shear on protein conformation change. We evaluated such strategies in this work and found that the binding of the fluorescent probe 4,4'-dianilino-1,1'-binaphthyl-5,5'-disulfonic acid (bis-ANS) to hydrophobic pockets in the blood protein von Willebrand factor (VWF) is enhanced upon the application of fluid shear to the...

Protein structure prediction without using templates (i.e., ab initio folding) is one of the most challenging problems in structural biology. In particular, conformation sampling poses as a major bottleneck of ab initio folding. This article presents CRFSampler, an extensible protein conformation sampler, built on a probabilistic graphical model Conditional Random Fields (CRFs). Using a discrim...