نتایج جستجو برای: enhanced green fluorescent protein egfp
تعداد نتایج: 1676965 فیلتر نتایج به سال:
هدف: با تلفیق سیستم االقایی تتراسیکلین (Tet-inducible system) و ناقلین لنتی ویروسی، القا بیان ژن گزارشگر Enhanced Green Fluorescent Protein (EGFP) در سلول‌های پرندگان مورد بررسی قرار گرفت. مواد و روشها: ژن EGFP تحت کنترل سیستم Tet-ON قرار گرفت و بیان آن در سلول‌های کبدی جوجه رده LMH بررسی شد. ابتدا باکتریهای مستعد با ناقل لنتی ویروسی القایی حامل EGFP بههمر...
The fluorescence lifetime image of HeLa cells expressing an enhanced green fluorescent protein (EGFP)-fusion protein changes under stress, which allows noninvasive determination of the status of individual cells.
Fluorescence complementation technology with fluorescent proteins is a powerful approach to investigate molecular recognition by monitoring fluorescence enhancement when non-fluorescent fragments of fluorescent proteins are fused with target proteins, resulting in a new fluorescent complex. Extension of the technology to calcium-dependent protein–protein interactions has, however, rarely been r...
Enhanced green fluorescent protein (EGFP) was fused with staphylococcal protein A (SpA) and used as a substrate for proteases. An SpA-EGFP assay was done in three steps: (i) digestion of SpA-EGFP by proteases, (ii) addition of rabbit IgG immobilized on Sepharose beads, and (iii) measurement of the fluorescence intensity of supernatant. The assay was sensitive enough to measure picogram levels o...
The newly developed assay system using recombinant Leishmania amazonensis expressing enhanced green fluorescent protein (La/egfp) has been applied to the screening of Japanese marine sponges for antileishmanial activity. Bioassay-guided fractionation of an active sponge Neopetrosia sp. afforded an active compound which was identified as renieramycin A by spectroscopic analysis. It inhibited La/...
Green fluorescent protein (GFP) and its derivatives are the most widely used molecular reporters for live cell imagining. The development of organelle-specific fusion fluorescent proteins improves the labeling resolution to a higher level. Here we generate a R26 dual fluorescent protein reporter mouse, activated by Cre-mediated DNA recombination, labeling target cells with a chromatin-specific ...
We searched for novel Chinese hamster ovary (CHO) cell mutants defective in peroxisome biogenesis by an improved method using peroxisome targeting sequence (PTS) of Pex3p (amino acid residues 1–40)-fused enhanced green fluorescent protein (EGFP). From mutagenized TKaEG3(1–40) cells, the wild-type CHO-K1 stably expressing rat Pex2p and of rat Pex3p(1–40)-EGFP, numerous cell colonies resistant to...
هدف: هدف این تحقیق تولید لنتی ویروسهای حامل ژن nurr1 و بیان در سلول‌های انسانی میباشد. مواد و روشها: قطعه ژنی ires-egfp با آنزیمهای bgl ll/not1 از ناقل pires2-egfp جدا و با klenow کور (blunt) گردید. ناقل لنتی ویروسی pnl-egfp/cmv/wpredu3 با آنزیمهای nhe1/ xho1 برش و دو سر آن کور شد. قطعه ژنی ایزوله شده به این ناقل منتقل شد تا سازه لنتی ویروسی (i) بهوجود آید. سپس ژن nurr1 با آنزیمهای ...
Tg(PrP-EGFP) mice express an enhanced green fluorescent protein (EGFP)-tagged version of the prion protein (PrP) that behaves like endogenous PrP in terms of its posttranslational processing, anatomical localization, and functional activity. In this study, we describe experiments in which Tg(PrP-EGFP) mice were inoculated intracerebrally with scrapie prions. Although PrP-EGFP was incapable of s...
The efficient production of transgenic (Tg) piglets has remained a challenge in the field domestic animal studies. Unlike mice, pronuclei pig zygotes cannot be easily studied because abundance lipid droplets. Therefore, must briefly centrifuged before pronuclear injection (PNI) to move droplets periphery zygote for PNI-mediated Tg piglets. However, this procedure is temporal return original spa...
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