Searching databases for distant homologues using alignments instead of individual sequences increases the power of detection. However, most methods assume that protein evolution proceeds in a regular fashion, with the inferred tree of sequences providing a good estimation of the evolutionary process. We investigated the combined HMMER search results from random alignment subsets (with three seq...

human interferon β (inf-β) is a member of cytokines family which different studies have shown its immunomodulatory and antiviral activities. in this study an expression vector was designed and constructed for expression of human inf-β-1b either in shake flasks and bench top bioreactor. the designed vector was constructed based upon pet-25b(+) with t7 promoter. recombinant human beta interferon ...

Duchamp, G. and D. Krob, On the partially commutative shuffle product, Theoretical Computer Science 96 (1992) 405410. We give recursive formulas that allow us to compute the partially commutative shuffle product of two partially commutative words.

Mariner transposons belong to the mariner /Tc1 superfamily of class II, DNA-mediated elements. One of these transposons, Himar1 , isolated from the horn fly, is independent of host-specific factors that would limit transfer between different species, making it an ideal candidate for gene transfer technology development. To determine the activity of Himar1 transposase in mammalian cells, we intr...

In the theoretical framework of graph embedding and network emulations, we show that the index-shuffle graph (a bounded-degree hypercube-like interconnection network, recently introduced by [ Baumslag and Obrenić (1997): Index-Shuffle Graphs, :::]) efficiently approximates the hypercube in general computations, by emulating the directproduct structure of the hypercube. In the direct product G =...

OBJECTIVE The aim of the present study was to develop potential candidates of integrin αvβ3-targeted imaging agent, which can facilitate the diagnosis and treatment of malignant solid tumors. METHODS Peptides derived from tumstatin, named T7 and T7-6H, were derivatized to contain histidine in the C-terminus of their sequence and were labeled with (99m)Tc via nitrido and carbonyl precursors. T...

For protein production and purification, many different cell systems ranging from bacteria to mammalian cell lines are commonly used. High-level expression of recombinant proteins in E. coli is often achieved using the strong yet tightly regulatable T7 promoter system (23). Many convenient T7 promoter-based bacterial expression vectors are commercially available from different sources and are w...

The development of a T7 RNA polymerase (T7 RNAP) expressing cell line i.e. BSR T7/5 cells marks an improvement reverse genetics for the recovery recombinant Newcastle disease virus (rNDV). is developed by transient transfection plasmid encoding RNAP gene rNDV rescue. However, expression decreases gradually over multiple passages and eventually hinders rescue rNDV. To address this issue, lentivi...