نتایج جستجو برای: ناحیه HVR1

تعداد نتایج: 24253  

ژورنال: :پژوهش در نشخوارکنندگان 0
زهرا سجادی زرجانی دانشگاه یاسوج محمد رضا بحرینی بهزادی استادیار رشته علوم دامی دانشگاه یاسوج مجید فردایی دانشیار گروه ژنتیک پزشکی دانشگاه شیراز

سابقه و هدف: به دلیل تعداد افراد کم در جمعیت های گوسفند بومی موجود در نقاط مختلف ایران، حفظ تنوع ژنتیکی این جمعیت ها برای انجام برنامه های اصلاح نژادی بسیار مهم است. همچنین این نکته را باید متذکر شد که نژادهای گوسفند بومی به عنوان سرمایه ملی کشور محسوب می شوند و حفظ تنوع ژنتیکی آن ها بسیار ضروری می باشد. بررسی ژنوم میتوکندری شاخصی مناسب برای نشان دادن میزان تنوع ژنتیکی در جمعیت های مختلف دامی ا...

Journal: :Journal of virology 1995
L J van Doorn I Capriles G Maertens R DeLeys K Murray T Kos H Schellekens W Quint

Sequence evolution of the hypervariable region 1 (HVR1) in the N terminus of E2/NS1 of hepatitis C virus (HCV) was studied retrospectively in six chimpanzees inoculated with the same genotype 1b strain, containing a unique predominant HVR1 sequence. Immediately after inoculation, all animals contained the same HVR predominant sequence. Two animals developed an acute self-limiting infection. Ant...

Journal: :Journal of virology 1994
N Kato Y Ootsuyama H Sekiya S Ohkoshi T Nakazawa M Hijikata K Shimotohno

The hypervariable region 1 (HVR1) of the putative second envelope glycoprotein (gp70) of hepatitis C virus (HCV) contains a sequence-specific immunological B-cell epitope that induces the production of antibodies restricted to the specific viral isolate, and anti-HVR1 antibodies are involved in the genetic drift of HVR1 driven by immunoselection (N. Kato, H. Sekiya, Y. Ootsuyama, T. Nakazawa, M...

ژورنال: علوم دامی ایران 2019

بزهای بومی ایران به­عنوان یکی از ذخایر ژنتیکی ارزشمند محسوب می­شوند و حفظ تنوع ژنتیکی آنها حائز اهمیت است. ژنوم میتوکندری در یک اکوتیپ و مقایسه آن با سایر اکوتیپ­ها می­تواند شاخص مناسبی از میزان تنوع موجود در آن جمعیت را ارائه دهد. هدف از پژوهش اخیر بررسی ساختار ژنتیکی و ترسیم روابط فیلوژنتیکی ناحیه HVR1 میتوکندری چهار توده جمعیتی بز­های بومی ایران شامل سیستانی، پاکستانی، عدنی و سیاه لری (هر کد...

2011
Gabrielle Vieyres Jean Dubuisson Arvind H. Patel

The hypervariable region 1 (HVR1) comprising the first 27 aa of E2 glycoprotein is a target for neutralizing antibodies against hepatitis C virus (HCV), but the mechanisms of this neutralization in the cell-culture-infectious genotype 2a strain JFH1 HCV virus (HCVcc) system are unknown. Two rabbit polyclonal sera, R1020 and R140, recognizing the HVR1 of the genotype 1a isolates H77c and Glasgow...

Journal: :Journal of virology 2001
F Penin C Combet G Germanidis P O Frainais G Deléage J M Pawlotsky

Chronic hepatitis C virus (HCV) infection is a major cause of liver disease. The HCV polyprotein contains a hypervariable region (HVR1) located at the N terminus of the second envelope glycoprotein E2. The strong variability of this 27-amino-acid region is due to its apparent tolerance of amino acid substitutions together with strong selection pressures exerted by anti-HCV immune responses. No ...

2012
David S. Campo Zoya Dimitrova Jonny Yokosawa Duc Hoang Nestor O. Perez Sumathi Ramachandran Yury Khudyakov

Vaccine development against hepatitis C virus (HCV) is hindered by poor understanding of factors defining cross-immunoreactivity among heterogeneous epitopes. Using synthetic peptides and mouse immunization as a model, we conducted a quantitative analysis of cross-immunoreactivity among variants of the HCV hypervariable region 1 (HVR1). Analysis of 26,883 immunological reactions among pairs of ...

Journal: :The EMBO journal 1998
G Puntoriero A Meola A Lahm S Zucchelli B B Ercole R Tafi M Pezzanera M U Mondelli R Cortese A Tramontano G Galfre' A Nicosia

The hypervariable region 1 (HVR1) of the putative envelope protein E2 of hepatitis C virus (HCV) is the most variable antigenic fragment in the whole viral genome and is mainly responsible for the large inter-and intra-individual heterogeneity of the infecting virus. It contains a principal neutralization epitope and has been proposed as the major player in the mechanism of escape from host imm...

Journal: :Journal of clinical microbiology 2003
Catherine Gaudy Alain Moreau Pascal Veillon Stephanie Temoin Francoise Lunel Alain Goudeau

The heterogeneity of hypervariable region 1 (HVR1), located at the amino terminus of the E2 envelope, may be involved in resistance to alpha interferon (IFN-alpha) treatment. We investigated whether peculiar HVR1 domain profiles before treatment were associated with the maintenance of sensitivity or the appearance of resistance to treatment. Fifteen patients infected with hepatitis C virus geno...

Journal: :Journal of biomolecular screening 2002
David G Witte Steven C Cassar Jeffrey N Masters Timothy Esbenshade Arthur A Hancock

The cloned vanilloid receptor 1 (VR1) is a ligand-gated calcium channel that is believed to be the capsaicin-activated vanilloid receptor found in native tissues, based on similarities regarding molecular mass, tissue distribution, and electrophysiological properties. Using a Fluorescent Imaging Plate Reader (FLIPR), along with Fluo-3 to signal intracellular calcium levels ([Ca(++)](i)), rat VR...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید