κ-casein is a glycosilated protein belonging to a family of phosphoproteins (αs1,β, αs2,κ) that represents the major protein component in mammalian milk. κ-casein plays an essential role in the case of micelle stabilization, determining the size and the specific biological function. In the present study, we report the characterization of the partial sequence of κ-casein promoter region in the I...

κ-casein is a glycosilated protein belonging to a family of phosphoproteins (αs1,β, αs2,κ) that represents the major protein component in mammalian milk. κ-casein plays an essential role in the case of micelle stabilization, determining the size and the specific biological function. In the present study, we report the characterization of the partial sequence of κ-casein promoter region in the I...

background: bone morphogenetic proteins (bmps) belong to the transforming growth factor-β (tgf-β) superfamily, and play an important role in bone metabolism. recombinant forms of bmp-2 and bmp-7 are the only bmps used clinically. in this study the mature part of human bone morphogenetic protein-7 (bmp-7) was engineered through substitution of the bmp-7 n-terminal sequence by heparin-binding sit...

background and objectives: during past decades hansenula polymorpha has attracted global attention for the expression of recombinant proteins due to its high growth rate, minimal nutritional porequirements and use of methanol as a low cost inducer. materials and methods: the corresponding nucleotide sequences for the expression of heterologous genes in hansenula poylmorpha were extracted and as...

Background: Denileukin diftitox (trade name, Ontak) is the first recombinant immunotoxin (IM), in which the binding domain of diphtheria toxin has been replaced by the amino acid sequence of human interleukin-2 (DT389IL-2) using genetic engineering. Purity, stability, and structural property of the protein are critical factors for the scale-up production of this fusion protein. In this IM, loca...

Abstract The acidic activation domain (AD) of yeast transcription factor Gal4 plays a dual role in repression and through binding to Gal80 repressor Mediator subunit Med15. function arises from two hydrophobic regions within the 40-residue AD. We show by NMR that each AD region binds Med15 using “fuzzy” protein interface. Remarkably, comparison chemical shift perturbations shows Gcn4, intrinsic...

P48 protein of Mycoplasma agalactiae is used to diagnose infection and was identified as potential vaccine candidate. According to the genetic nature of mycoplasma and variable sensitivity in P48-based serological diagnosis tests, intra species variation of P48 nucleotide sequence investigated in 13 field isolates of difference province of Iran along with three vaccine strains. Samples were col...

Infectious bursal disease (IBD), a highly contagious and devastating disease in young chicken, is causedby infectious bursal disease virus (IBDV). To improve the immunogenicity of recombinant IBDV subunitvaccine, an attempt was made to find a new way to prepare IBD vaccine containing glycosylated mVP2antigen. Firstly, IBDV mVP2 gene (with a nucleic acid sequence encoding B cell epitope of IBDV(...