نتایج جستجو برای: ژن ppri

تعداد نتایج: 15815  

زمینه و اهداف: ژن PprI یکی از ژن‌های جدید شناخته‌شده در باکتری داینوکوکوس رادیودورانس می‌باشد که نقش اساسی در ترمیم DNA و مقاومت این باکتری نسبت به اشعه ماورای بنفش دارد. هدف این مطالعه کلون، بیان و بررسی خصوصیات ژن PprI در اشریشیاکلی می‌باشد. مواد و روش کار: ژن PprI باکتری داینوکوکوس رادیودورانس در حامل کلونینگ pGEM به‌صورت سنتتیک ساخته‌شده و در وکتور pET21a ساب کلون گردید. حامل پلاسمید بیان...

ژورنال: :مجله میکروب شناسی پزشکی ایران 0
امیر میرزایی amir mirzaie department of biology, faculty of basic sciences, science and research branch, islamic azad university, tehran, iran1. گروه زیست شناسی، دانشکده علوم پایه، دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران، تهران ایران. جلیل فلاح مهرآبادی jalil fallah mehrabadi science and research university2. گروه علوم زیستی و فن آوری تکنولوژی، دانشگاه صنعتی مالک اشتر، تهران، ایران. نور امیرمظفری noor amirmozafari tehran university of medical sciencesدانشگاه علوم پزشکی ایران طاهر نژادستاری taher nejadsattari science and research universityدانشگاه آزاد علوم و تحقیقات

زمینه و اهداف: ژن ppri یکی از ژن های جدید شناخته شده در باکتری داینوکوکوس رادیودورانس می باشد که نقش اساسی در ترمیم dna و مقاومت این باکتری نسبت به اشعه ماورای بنفش دارد. هدف این مطالعه کلون، بیان و بررسی خصوصیات ژن ppri در اشریشیاکلی می باشد. مواد و روش کار: ژن ppri باکتری داینوکوکوس رادیودورانس در حامل کلونینگ pgem به صورت سنتتیک ساخته شده و در وکتور pet21a ساب کلون گردید. حامل پلاسمید بیانی ...

2017
Ting-ting Chen Wei Hua Xi-zhi Zhang Bu-hai Wang Zhan-shan Yang

The role of the pprI gene from Deinococcus radiodurans R1 in therapy of acute radiation injury of a mammalian host was investigated. We injected a plasmid containing the pprI gene into the muscle of mice exposed to total 6Gy of 60Co γ-ray radiation. After injection, we used in vivo gene electroporation technology to transfer the pprI gene into the cell. We found the PprI protein was expressed s...

2015
Xiangrong Dong Bing Tian Shang Dai Tao Li Linna Guo Zhongfang Tan Zhen Jiao Qingsheng Jin Yanping Wang Yuejin Hua Paul Jaak Janssen

PprI is a general switch protein that regulates the expression of certain proteins involved in pathways of cellular resistance in the extremophilic bacterium Deinococcus radiodurans. In this study, we transformed pprI into Lactococcus lactis strain MG1363 using the lactococcal shuttle vector pMG36e and investigated its effects on the tolerance and lactic acid production of L. lactis while under...

2015
Sabine Vogler Nina Zimmermann Kees De Joncheere

Policy-makers throughout Europe and beyond have been working to develop and implement, and further adjust, the most appropriate mix of policy measures in pharmaceutical pricing and reimbursement to ensure equitable access to medicines despite limited budgets. The experience with policies in other countries is highly valuable information for them. In order to support policy-makers, the Pharmaceu...

2016
Ling Wen Ling Yue Yi Shi Lili Ren Tingting Chen Na Li Shuyu Zhang Wei Yang Zhanshan Yang

PprI accelerates radiation-induced DNA damage repair via regulating the expression of DNA repair genes and enhances antioxidative enzyme activity in Deinococcus radiodurans after radiation. The main aim of our study was to determine whether the expression of pprI gene could fulfil its DNA repair function in eukaryotes and enhance the radioresistance of eukaryotic organism or not. In this study,...

Journal: :Molecular & cellular proteomics : MCP 2009
Huiming Lu Guanjun Gao Guangzhi Xu Lu Fan Longfei Yin Binghui Shen Yuejin Hua

Preliminary findings indicate that PprI is a regulatory protein that stimulates transcription and translation of recA and other DNA repair genes in response to DNA damage in the extremely radioresistant bacterium Deinococcus radiodurans. To define the repertoire of proteins regulated by PprI and investigate the in vivo regulatory mechanism of PprI in response to gamma radiation, we performed co...

2016
Yi Shi Wei Wu Huiping Qiao Ling Yue Lili Ren Shuyu Zhang Wei Yang Zhanshan Yang

Severe acute radiation injuries are both very lethal and exceptionally difficult to treat. Though the radioresistant bacterium D. radiodurans was first characterized in 1956, genes and proteins key to its radioprotection have not yet to be applied in radiation injury therapy for humans. In this work, we express the D. radiodurans protein PprI in Pichia pastoris yeast cells transfected with the ...

2015
Yunguang Wang Qiang Xu Huiming Lu Lin Lin Liangyan Wang Hong Xu Xianyan Cui Hui Zhang Tingting Li Yuejin Hua

The extremophilic bacterium Deinococcus radiodurans exhibits an extraordinary resistance to ionizing radiation. Previous studies established that a protein named PprI, which exists only in the Deinococcus-Thermus family, acts as a general switch to orchestrate the expression of a number of DNA damage response (DDR) proteins involved in cellular radio-resistance. Here we show that the regulatory...

Journal: :Tumori 2007
Luca Ostacoli Massimo Costantini Monica Beccaro Monica Dellai Gabriella Gorzegno Rocco Luigi Picci Erica Sguazzotti Alfredo Berruti Riccardo Torta Pier Maria Furlan

BACKGROUND The quality of the relationship between patient and medical staff is crucial in oncological settings. We have developed and validated a short, self-administered questionnaire to measure patients' satisfaction with their relationship with the physician: the Patient-Physician Relationship Index (PPRI). MATERIALS AND METHODS Content validity was evaluated by a two-stage (development a...

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