De novo initiation of RNA synthesis by the arterivirus RNA-dependent RNA polymerase.

abstract：:To combat emerging coronaviruses, developing safe and efficient platforms to evaluate viral protease activities and the efficacy of protease inhibitors is a high priority. Here, we exploit a biosafety level 2 (BSL-2) chimeric Sindbis virus system to evaluate protease activities and the efficacy of inhibitors directed ...

journal_title：Journal of virology

authors： Deng X,Agnihothram S,Mielech AM,Nichols DB,Wilson MW,StJohn SE,Larsen SD,Mesecar AD,Lenschow DJ,Baric RS,Baker SC

更新日期：2014-10-01 00:00:00

abstract：:The papillomavirus E2 protein is a critical viral regulatory protein with transcription, DNA replication, and genome maintenance functions. We have previously identified the cellular bromodomain protein Brd4 as a major E2-interacting protein and established that it participates in tethering bovine papillomavirus type ...

journal_title：Journal of virology

authors： Schweiger MR,Ottinger M,You J,Howley PM

更新日期：2007-09-01 00:00:00

abstract：:An E1-E3-deleted recombinant adenovirus vector expressing the hybrid protein TetR-KRAB has been produced. In this virus, AdTG9562, the E2 transcription is regulated by TetR-KRAB and tetO sequences inserted in cis. In the absence of tetracycline, a strong reduction in E2A gene expression, viral DNA replication, and lat...

journal_title：Journal of virology

authors： Rittner K,Schultz H,Pavirani A,Mehtali M

更新日期：1997-04-01 00:00:00

abstract：:Phosphonoformate (foscarnet) is a pyrophosphate (PP(i)) analogue and a potent inhibitor of human immunodeficiency virus type 1 (HIV-1) reverse transcriptase (RT), acting through the PP(i) binding site on the enzyme. HIV-1 RT can unblock a chain-terminated DNA primer by phosphorolytic transfer of the terminal residue t...

journal_title：Journal of virology

authors： Meyer PR,Matsuura SE,Zonarich D,Chopra RR,Pendarvis E,Bazmi HZ,Mellors JW,Scott WA

更新日期：2003-06-01 00:00:00

abstract：:Region 1 DNA sequences (map positions 0 to 11% on the linear adenovirus 2 genome) are expressed both early and late in lytic infection and are required for transformation by the virus. During productive infection six distinct cytoplasmic RNAs are synthesized from this region. These RNAs comprise two families, each con...

journal_title：Journal of virology

authors： Halbert DN,Spector DJ,Raskas HJ

更新日期：1979-09-01 00:00:00

abstract：:Vaccinia virus does not grow in Chinese hamster ovary (CHO-K1) cells in the absence of a viral host range factor, cowpox protein CP77. In this study, CP77 was fused to the C terminus of green fluorescence protein (GFP-CP77) and a series of nested deletion mutants of GFP-CP77 was constructed for insertion into a vaccin...

journal_title：Journal of virology

authors： Hsiao JC,Chao CC,Young MJ,Chang YT,Cho EC,Chang W

更新日期：2006-08-01 00:00:00

abstract：:A sequence of polyadenylic acid, homogeneous in composition but heterogeneous in length, was isolated from complete pancreatic RNase digests of both middle and bottom RNAs of cowpea mosaic virus. The polyadenylic acid was 3'-terminal and occurred once per molecule. A fragment consisting of the polyadenylic acid and ap...

journal_title：Journal of virology

authors： Steele KP,Frist RH

更新日期：1978-05-01 00:00:00

abstract：:The smallpox vaccine is the prototypic vaccine, yet the viral targets critical for vaccine-mediated protection remain unclear in humans. We have produced protein microarrays of a near-complete vaccinia proteome and used them to determine the major antigen specificities of the human humoral immune response to the small...

journal_title：Journal of virology

authors： Davies DH,McCausland MM,Valdez C,Huynh D,Hernandez JE,Mu Y,Hirst S,Villarreal L,Felgner PL,Crotty S

更新日期：2005-09-01 00:00:00

abstract：:The synthesis of membrane protein after infection with bacteriophage T4 was examined. Protein constituents of both the cytoplasmic and outer membrane are made during the infective cycle. In addition, newly synthesized membrane protein is found in material which has a buoyant density greater than that of either of the ...

journal_title：Journal of virology

authors： Fletcher G,Wulff JL,Earhart CF

更新日期：1974-01-01 00:00:00

abstract：:We have selected neutralization escape mutants by using a monoclonal antibody (nt-MAb) against a sequential epitope between amino acids 93 through 104 (neutralization antigenic site I) of poliovirus type 1 Mahoney. The majority of mutants were also resistant against five strain-specific nt-MAbs which recognized confor...

journal_title：Journal of virology

authors： Wiegers K,Uhlig H,Dernick R

更新日期：1988-05-01 00:00:00

abstract：:The two canine adenoviruses, infectious canine hepatitis (ICH) virus and infectious canine laryngotracheitis (ICL) virus (also designated as Toronto A26/61 virus), were studied with respect to their morphology and the biological properties of their soluble components. The two viruses were found to be composed of solub...

journal_title：Journal of virology

authors： Marusyk RG,Norrby E,Lundqvist U

更新日期：1970-04-01 00:00:00

abstract：:Coupling of G proteins to ligand-engaged chemokine receptors is the paramount event in G-protein-coupled receptor signal transduction. Previously, we have demonstrated that the human cytomegalovirus-encoded chemokine receptor US28 mediates human vascular smooth muscle cell (SMC) migration in response to either RANTES ...

journal_title：Journal of virology

authors： Melnychuk RM,Streblow DN,Smith PP,Hirsch AJ,Pancheva D,Nelson JA

更新日期：2004-08-01 00:00:00

abstract：:Fusion of the membrane of the Moloney murine leukemia virus (Mo-MLV) Env protein is facilitated by cleavage of the R peptide from the cytoplasmic tail of its TM subunit, but the mechanism for this effect has remained obscure. The fusion is also controlled by the isomerization of the intersubunit disulfide of the Env S...

journal_title：Journal of virology

authors： Löving R,Li K,Wallin M,Sjöberg M,Garoff H

更新日期：2008-03-01 00:00:00

abstract：:Many replication events are involved in the influenza A virus life cycle, and they are accomplished by different virus proteins with specific functions. However, because the size of the influenza virus genome is limited, the virus uses different mechanisms to express multiple viral proteins from a single gene segment....

journal_title：Journal of virology

authors： Muramoto Y,Noda T,Kawakami E,Akkina R,Kawaoka Y

更新日期：2013-03-01 00:00:00

abstract：:The natural life cycle of alphaviruses, a group of plus-strand RNA viruses, involves transmission to vertebrate hosts via mosquitoes. Chronic infections are established in mosquitoes (and usually in mosquito cell cultures), but infection of susceptible vertebrate cells typically results in rapid shutoff of host mRNA t...

journal_title：Journal of virology

authors： Frolov I,Agapov E,Hoffman TA Jr,Prágai BM,Lippa M,Schlesinger S,Rice CM

更新日期：1999-05-01 00:00:00

abstract：:A human cell line (293) transformed by adenovirus type 5 encodes mRNA's and proteins from the early region 1 (E1) of the viral genome. These products correspond to those synthesized early after adenovirus infection of normal cells. This pattern of expression is different from that observed at later times in the lytic ...

journal_title：Journal of virology

authors： Spector DJ,Halbert DN,Raskas HJ

更新日期：1980-12-01 00:00:00

abstract：:Humoral immune responses to influenza virus vaccines in elderly individuals are poorly adapted toward new antigenically drifted influenza virus strains. Instead, older individuals respond in an original antigenic sin fashion and produce much more cross-reactive but less potent antibodies. Here, we investigated four in...

journal_title：Journal of virology

authors： Kirkpatrick E,Henry C,McMahon M,Jiang K,Strohmeier S,van Bakel H,Wilson PC,Krammer F

更新日期：2020-11-09 00:00:00

abstract：:Human keratinocytes immortalized by full-length or early-region simian virus 40 (SV40) DNA grow in agarose and form tumors in nude mice, in contrast to keratinocytes immortalized by the E6/E7 genes of human papillomaviruses. To determine the molecular basis for this biological difference in growth, we have used the in...

journal_title：Journal of virology

authors： Yuan H,Veldman T,Rundell K,Schlegel R

更新日期：2002-11-01 00:00:00

abstract：:Cell-free translation of the RNA of encephalomyocarditis virus was examined after hybridization of chemically synthesized cDNA fragments to different sites of the 5' noncoding region of the viral RNA. The following results were obtained. The binding of cDNA fragments to the first 41 nucleotides, to the poly(C) tract (...

journal_title：Journal of virology

authors： Shih DS,Park IW,Evans CL,Jaynes JM,Palmenberg AC

更新日期：1987-06-01 00:00:00

abstract：:The Kaposi's sarcoma-associated herpesvirus nuclear egress complex is composed of two proteins, ORF67 and ORF69. In this study, we have recapitulated the KSHV complex by coexpression of these two proteins in insect cells using expression from recombinant baculoviruses. The proteins form a complex at the nuclear membra...

journal_title：Journal of virology

authors： Desai PJ,Pryce EN,Henson BW,Luitweiler EM,Cothran J

更新日期：2012-01-01 00:00:00

abstract：UNLABELLED:During HIV-1 assembly, the Gag viral proteins are targeted and assemble at the inner leaflet of the cell plasma membrane. This process could modulate the cortical actin cytoskeleton, located underneath the plasma membrane, since actin dynamics are able to promote localized membrane reorganization. In additio...

journal_title：Journal of virology

authors： Thomas A,Mariani-Floderer C,López-Huertas MR,Gros N,Hamard-Péron E,Favard C,Ohlmann T,Alcamí J,Muriaux D

更新日期：2015-08-01 00:00:00

abstract：:Recombinant vaccinia viruses containing the 22-kilodalton protein (matrixlike or 22K protein) or phosphoprotein gene from respiratory syncytial virus were constructed. These recombinant viruses expressed proteins which were immunoprecipitated by appropriate respiratory syncytial virus antibodies and comigrated with au...

journal_title：Journal of virology

authors： Openshaw PJ,Anderson K,Wertz GW,Askonas BA

更新日期：1990-04-01 00:00:00

abstract：:A putative transcription factor, C/EBP, isolated from rat liver nuclei, has been shown to bind to at least two different sequence motifs: the CCAAT promoter domain and a core sequence [GTGG(T/A)(T/A)(T/A)G] common to many viral enhancers, including simian virus 40 and human hepatitis B virus. It has been proposed that...

journal_title：Journal of virology

authors： Pei DQ,Shih CH

更新日期：1990-04-01 00:00:00

abstract：:The Kaposi's sarcoma-associated herpesvirus (KSHV) K1 gene encodes a polypeptide bearing an immunoreceptor tyrosine-based activation motif (ITAM) that is constitutively active for ITAM-based signal transduction. Although ectopic overexpression of K1 in cultured fibroblasts can lead to growth transformation, in vivo th...

journal_title：Journal of virology

authors： Lagunoff M,Lukac DM,Ganem D

更新日期：2001-07-01 00:00:00

abstract：:Extracts from nodavirus-infected Drosophila cells contained detergent-labile 140S "young" particles much richer than mature virions in their content of protein alpha, a precursor of coat proteins beta and gamma. Incorporation studies in infected cells showed that most newly synthesized alpha protein was assembled into...

journal_title：Journal of virology

authors： Gallagher TM,Rueckert RR

更新日期：1988-09-01 00:00:00

abstract：:The poliovirus-encoded, membrane-associated VPg-precursor polypeptide 3AB has been implicated in the initiation of viral RNA synthesis. We have expressed 3AB and 3A polypeptides in eukaryotic cells and examined their localization using indirect immunofluorescence and a direct in vitro membrane-binding assay. Results p...

journal_title：Journal of virology

authors： Datta U,Dasgupta A

更新日期：1994-07-01 00:00:00

abstract：:Small amounts of infectious simian virus 40 (SV40) were recovered from parental cultures of SV40-transformed human embryonic lung (WI38 Va13A) cells, from 12 primary clones, from 17 secondary clones, and from 18 tertiary clones. The cloning experiments demonstrated that the capacity for spontaneous virus production is...

journal_title：Journal of virology

authors： Dubbs DR,Kit S

更新日期：1971-10-01 00:00:00

abstract：:Genetic conflicts between retroviruses and their receptors result in the evolution of novel host entry restrictions and novel virus envelopes, and such variants can influence trans-species transmission. We screened rodents and other mammals for sequence variation in the Xpr1 receptor for the mouse xenotropic or polytr...

journal_title：Journal of virology

authors： Yan Y,Liu Q,Wollenberg K,Martin C,Buckler-White A,Kozak CA

更新日期：2010-11-01 00:00:00

abstract：:A soluble system was developed that could support DNA replication in simian virus 40 (SV40) chromosomes. DNA synthesis in this system required the presence of purified SV40 large tumor antigen, SV40 chromosomes prepared from virus-infected monkey cells, a crude extract from HeLa cells, and several low-molecular-weight...

journal_title：Journal of virology

authors： Sugasawa K,Murakami Y,Miyamoto N,Hanaoka F,Ui M

更新日期：1990-10-01 00:00:00

abstract：:During paramyxovirus entry into a host cell, receptor engagement by a specialized binding protein triggers conformational changes in the adjacent fusion protein (F), leading to fusion between the viral and cell membranes. According to the existing paradigm of paramyxovirus membrane fusion, the initial activation of F ...

journal_title：Journal of virology

authors： Porotto M,Devito I,Palmer SG,Jurgens EM,Yee JL,Yokoyama CC,Pessi A,Moscona A

更新日期：2011-12-01 00:00:00