نتایج جستجو برای: 501
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The capsid proteins VP2 and VP3 of infectious bursal disease virus, a birnavirus, are derived from the processing of a large polyprotein: NH2-pVP2-VP4-VP3-COOH. Although the primary cleavage sites at the pVP2-VP4 and VP4-VP3 junctions have been identified, the proteolytic cascade involved in the processing of this polyprotein is not yet fully understood, particularly the maturation of pVP2. By ...
Treatment of the canine renal Na,K-ATPase with N-(2-nitro-4-isothiocyanophenyl)-imidazole (NIPI) results in irreversible loss of enzymatic activity. The reactivity of the protein toward the probe is about 10-fold greater in the E1.Na or sodium-bound form than when it is in the E2.K or potassium-bound form. Fully inactivated enzyme does not bind ATP but binds sodium and potassium and undergoes t...
We present the results of a spectral and temporal study of the complete set of BeppoSAX NFI (11) and WFC (71) observations of the BL Lac object Mkn 501. The WFC 2–28 keV data, reported here for the first time, were collected over a period of about five years, from September 1996 to October 2001. These observations, although not evenly distributed, show that Mkn 501, after going through a very a...
Recent observations of the TeV γ-ray spectra of the two closest active galactic nuclei (AGNs), Markarian 501 (Mrk 501) and Markarian 421 (Mrk 421), by the Whipple and HEGRA collaborations have stimulated efforts to estimate or limit the spectral energy density (SED) of extragalactic background light (EBL) which causes attenuation of TeV photons via pair-production when they travel cosmological ...
DIRECTIVE 82/501/EEC ANNEX VII B. De Marchi, S. Funtowicz EUR 15946 EN Published by the EUROPEAN COMMISSION Directorate-General Xlll Telecommunications, Information Market and Exploitation of Research L-2920 Luxembourg LEGAL NOTICE Neither the European Commission nor any person acting on behalf of the Commission is responsible for the use which might be made of the following information Catalog...
BACKGROUND A novel 2009 swine-origin influenza A H1N1 virus (S-OIV H1N1) has been transmitted among humans worldwide. However, the pathogenesis of this virus in human airway epithelial cells and mammals is not well understood. METHODOLOGY/PRINCIPAL FINDING In this study, we showed that a 2009 A (H1N1) influenza virus strain, A/Beijing/501/2009, isolated from a human patient, caused typical in...
The methyl-CpG binding domain 1 (MBD1) protein plays an important role for transcriptional regulation of gene expression. Polymorphisms and haplotypes of the MBD1 gene may have an influence on MBD1 activity on gene expression profiles, thereby modulating an individual's susceptibility to lung cancer. To test this hypothesis, we investigated the association of MBD1 -634G>A, -501delT (-501 T/T, T...
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