Amino acid 226 in the hemagglutinin of H9N2 influenza viruses determines cell tropism and replication in human airway epithelial cells.

abstract：:Luteoviruses avoid degradation in the hemolymph of their aphid vector by interacting with a GroEL homolog from the aphid's primary endosymbiotic bacterium (Buchnera sp.). Mutational analysis of GroEL from the primary endosymbiont of Myzus persicae (MpB GroEL) revealed that the amino acids mediating binding of Potato l...

journal_title：Journal of virology

authors： Hogenhout SA,van der Wilk F,Verbeek M,Goldbach RW,van den Heuvel JF

更新日期：2000-05-01 00:00:00

abstract：:The gene coding for the S protein, the smaller of the two envelope antigens of the duck hepatitis B virus (DHBV), is transcribed from a TATA-less promoter. In this study, we localized the promoter to a 245-bp segment of the genome that was capable of efficiently driving expression of a linked reporter gene upon transi...

journal_title：Journal of virology

authors： Welsheimer T,Newbold JE

更新日期：1996-12-01 00:00:00

abstract：:To analyze the association of the human immunodeficiency virus type 1 integrase (IN) protein with DNA substrates, we applied a shortwave UV cross-linking method to the in vitro integration system. Three photoadduct bands were detected on sodium dodecyl sulfate-polyacrylamide gels. The appearances of these photoadducts...

journal_title：Journal of virology

authors： Yoshinaga T,Kimura-Ohtani Y,Fujiwara T

更新日期：1994-09-01 00:00:00

abstract：:Vaccine-induced memory is necessary for protective immunity to pathogens, but many viruses induce a state of transient immune suppression that might contribute to the inability of a vaccine to elicit immunity. We evaluated here the fate of bystander T cells activated by third party cognate antigens during acute viral ...

journal_title：Journal of virology

authors： Marshall HD,Urban SL,Welsh RM

更新日期：2011-06-01 00:00:00

abstract：:Deletion of the terminal repeats (TR) from herpesvirus saimiri (HVS) renders it unable to produce infectious virus or generate plaques. However, a TR-deleted HVS bacterial artificial chromosome can form replication compartments. Complementation of this mutant shows that one copy of the TR, plus the right junction of t...

journal_title：Journal of virology

authors： White RE,Carline L,Allday MJ

更新日期：2007-06-01 00:00:00

abstract：:Viral infectivity factor (Vif) is one of the human immunodeficiency virus (HIV) accessory proteins and is conserved in the primate lentivirus group. This protein is essential for viral replication in vivo and for productive infection of nonpermissive cells, such as peripheral blood mononuclear cells (PBMC). Vif counte...

journal_title：Journal of virology

authors： Ribeiro AC,Maia e Silva A,Santa-Marta M,Pombo A,Moniz-Pereira J,Goncalves J,Barahona I

更新日期：2005-01-01 00:00:00

abstract：:Vaccine-elicited immunoglobulin G (IgG) has been shown to be important for protection against simian-human immunodeficiency virus (SHIV) infection in rhesus monkeys. However, it remains unclear whether vaccine-elicited IgA responses are beneficial or detrimental for protection. In this study, we evaluated the kinetics...

journal_title：Journal of virology

authors： Kang ZH,Bricault CA,Borducchi EN,Stephenson KE,Seaman MS,Pau M,Schuitemaker H,van Manen D,Wegmann F,Barouch DH

更新日期：2018-07-17 00:00:00

abstract：:Rift Valley fever virus (RVFV) is an arbovirus that causes disease in livestock and humans in Africa and the Middle East. While human disease is typically mild and self-limiting, some individuals develop severe manifestations, such as hepatitis, hemorrhagic fever, or encephalitis. Encephalitis occurs 2 to 3 weeks afte...

journal_title：Journal of virology

authors： Harmon JR,Spengler JR,Coleman-McCray JD,Nichol ST,Spiropoulou CF,McElroy AK

更新日期：2018-11-27 00:00:00

abstract：:The proteolytic enzyme, thermolysin, degraded the external segment of the membrane glycoprotein of intact vesicular stomatitis (VS) virions but left behind a small nonglycosylated fragment, presumably embedded in the virion membrane. Other proteases generated membrane-associated glycoprotein fragments differing somewh...

journal_title：Journal of virology

authors： Schloemer RH,Wagner RR

更新日期：1975-08-01 00:00:00

abstract：:The vast majority of people already have preexisting immune responses to influenza viruses from one or more subtypes. However, almost all preclinical studies evaluate new influenza vaccine candidates in immunologically naive animals. Recently, our group demonstrated that priming naive ferrets with broadly reactive H1 ...

journal_title：Journal of virology

authors： Allen JD,Jang H,DiNapoli J,Kleanthous H,Ross TM

更新日期：2019-01-17 00:00:00

abstract：:Small interfering RNAs (siRNAs) processed from double-stranded RNA (dsRNA) of virus origins mediate potent antiviral defense through a process referred to as RNA interference (RNAi) or RNA silencing in diverse organisms. In the simple invertebrate Caenorhabditis elegans, the RNAi process is initiated by a single Dicer...

journal_title：Journal of virology

authors： Guo X,Zhang R,Wang J,Lu R

更新日期：2013-10-01 00:00:00

abstract：:3-O-(3',3'-dimethylsuccinyl)betulinic acid (PA-457 or bevirimat) potently inhibits human immunodeficiency virus type 1 (HIV-1) maturation by blocking a late step in the Gag processing pathway, specifically the cleavage of SP1 from the C terminus of capsid (CA). To gain insights into the mechanism(s) by which HIV-1 cou...

journal_title：Journal of virology

authors： Adamson CS,Ablan SD,Boeras I,Goila-Gaur R,Soheilian F,Nagashima K,Li F,Salzwedel K,Sakalian M,Wild CT,Freed EO

更新日期：2006-11-01 00:00:00

abstract：:Poliovirus-specific T lymphocytes were isolated from virus-immunized mice of different H-2 haplotypes. Immunological characterization of this population indicates that the effector population involved in the observed poliovirus-specific proliferative response was that of CD4-positive T-helper cells. Proliferative resp...

journal_title：Journal of virology

authors： Kutubuddin M,Simons J,Chow M

更新日期：1992-05-01 00:00:00

abstract：:A human lymphoid cell line (F172-D8) excreting a human immunodeficiency virus type 1 (HIV-1) anti-gp41 monoclonal antibody was used to construct a plasmid containing the cDNA of the single-chain variable fragment (scFvD8) corresponding to this antibody. A stable human osteosarcoma cell line was obtained which expresse...

journal_title：Journal of virology

authors： Legastelois I,Desgranges C

更新日期：2000-06-01 00:00:00

abstract：:Apoptosis of infected cells is critically involved in antiviral defense. Apoptosis, however, may also support the release and spread of viruses. Although the elimination of infected hepatocytes is required to combat hepatitis B virus (HBV) infection, it is still unknown which consequences hepatocyte apoptosis has for ...

journal_title：Journal of virology

authors： Arzberger S,Hösel M,Protzer U

更新日期：2010-11-01 00:00:00

abstract：:Oligomer formation of the gB glycoprotein of herpes simplex virus type 1 was studied by sedimentation analysis of radioactively labeled infected cell and virion lysates. Fractions from sucrose gradients were precipitated with a pool of gB-specific monoclonal antibodies and analyzed by sodium dodecyl sulfate-polyacryla...

journal_title：Journal of virology

authors： Highlander SL,Goins WF,Person S,Holland TC,Levine M,Glorioso JC

更新日期：1991-08-01 00:00:00

abstract：:A vigorous expansion of antigen-specific CD8(+) T cells lacking apparent effector function was observed in a rhesus macaque acutely infected with the simian immunodeficiency virus (SIV) strain SIVmac239. Antigen-specific CD8(+) T cells were identified using antigenic-peptide class I major histocompatibility complex te...

journal_title：Journal of virology

authors： Xiong Y,Luscher MA,Altman JD,Hulsey M,Robinson HL,Ostrowski M,Barber BH,MacDonald KS

更新日期：2001-03-01 00:00:00

abstract：:Strains of Theiler's murine encephalomyelitis virus (TMEV) are divided into two subgroups, TO and GDVII. TMEV strains show subgroup-specific virus growth and cell tropism and induce subgroup-specific diseases. Using site-directed mutagenesis, we demonstrated that the amino acid at position 57 of the leader protein (L(...

journal_title：Journal of virology

authors： Takano-Maruyama M,Ohara Y,Asakura K,Okuwa T

更新日期：2006-12-01 00:00:00

abstract：:Amphiphilic fatty acid derivatives having a 14- to 20-carbon cis-unsaturated alkyl chain were found to be potent inhibitors of the entry process of the lipid-containing bacteriophage PR4. ...

journal_title：Journal of virology

authors： Sands JA,Reinhardt A,Auperin D,Landin P

更新日期：1979-01-01 00:00:00

abstract：:Human cytomegalovirus (HCMV) encodes four putative G protein-coupled receptors, including pUL78, whose rodent orthologues are known to be important for replication and spread in their hosts. To investigate the mechanism by which pUL78 contributes to viral replication and pathogenesis, we generated a derivative of the ...

journal_title：Journal of virology

authors： O'Connor CM,Shenk T

更新日期：2012-11-01 00:00:00

abstract：:A panel of seven monoclonal antibodies against the relatively conserved CD4-binding domain on human immunodeficiency virus type 1 (HIV-1) gp120 was generated by immunizing mice with purified gp120. These monoclonal antibodies reacted specifically with gp120 in an enzyme-linked immunosorbent assay and Western blots (im...

journal_title：Journal of virology

authors： Sun NC,Ho DD,Sun CR,Liou RS,Gordon W,Fung MS,Li XL,Ting RC,Lee TH,Chang NT

更新日期：1989-09-01 00:00:00

abstract：:Bacteriophages of the C3 morphotype, characterized by very long heads that exceed their width several times, are extremely rare among the Podoviridae family members and constitute only 0.5% of over 5,500 phages that have been examined by the electron microscope (H. W. Ackermann, Arch. Virol. 152:227-243, 2007; H. W. A...

journal_title：Journal of virology

authors： Li Y,Chen M,Tang F,Yao H,Lu C,Zhang W

更新日期：2012-12-01 00:00:00

abstract：:Measles virus (MV) isolated in B95a cells, a marmoset B-cell line, retains full pathogenicity for cynomolgus monkeys, while its derivative obtained by adaptation to the growth in Vero cells, a monkey kidney cell line, loses the pathogenic potential (F. Kobune, H. Sakata, and A. Sugiura, J. Virol. 64:700-705, 1990). He...

journal_title：Journal of virology

authors： Takeda M,Kato A,Kobune F,Sakata H,Li Y,Shioda T,Sakai Y,Asakawa M,Nagai Y

更新日期：1998-11-01 00:00:00

abstract：:Previous studies with a limited number of strains have indicated that there are two genotypes of yellow fever (YF) virus in Africa, one in west Africa and the other in east and central Africa. We have examined the prM/M and a portion of the E protein for a panel of 38 wild strains of YF virus from Africa representing ...

journal_title：Journal of virology

authors： Mutebi JP,Wang H,Li L,Bryant JE,Barrett AD

更新日期：2001-08-01 00:00:00

abstract：:Ten bacteriophages that attack and lyse saprophytic strains of Bdellovibrio bacteriovorus were isolated. Morphological, serological, and host-range studies revealed that there were four different bdellovibrio phages present among the isolates. One of the phages lysed a strain of B. bacteriovorus that requires the pres...

journal_title：Journal of virology

authors： Althauser M,Samsonoff WA,Anderson C,Conti SF

更新日期：1972-09-01 00:00:00

abstract：:Defective interfering (DI) RNAs of Tomato bushy stunt virus (TBSV), a plus-sense RNA virus, comprise four conserved noncontiguous regions (I through IV) derived from the viral genome. Region III, a 70-nucleotide-long sequence corresponding to a genomic segment located 378 nucleotides upstream of the 3' terminus of the...

journal_title：Journal of virology

authors： Ray D,White KA

更新日期：2003-01-01 00:00:00

abstract：:R325-beta TK+, a herpes simplex virus 1 mutant carrying a 500-base-pair deletion in the alpha 22 gene and the wild-type (beta) thymidine kinase (TK) gene, was previously shown to grow efficiently in HEp-2 and Vero cell lines. We report that in rodent cell lines exemplified by the Rat-1 line, plating efficiency was red...

journal_title：Journal of virology

authors： Sears AE,Halliburton IW,Meignier B,Silver S,Roizman B

更新日期：1985-08-01 00:00:00

abstract：:The sheep genome harbors approximately 20 endogenous retroviruses (enJSRVs) highly related to the exogenous Jaagsiekte sheep retrovirus (JSRV). One of the enJSRV loci, enJS56A1, acts as a unique restriction factor by blocking JSRV in a transdominant fashion at a late stage of the retroviral cycle. To better understand...

journal_title：Journal of virology

authors： Murcia PR,Arnaud F,Palmarini M

更新日期：2007-02-01 00:00:00

abstract：:Reverse transcription in hepatitis B viruses is initiated through a unique protein priming mechanism whereby the viral reverse transcriptase (RT) first assembles into a ribonucleoprotein (RNP) complex with its RNA template and then initiates DNA synthesis de novo using the RT itself as a protein primer. RNP formation ...

journal_title：Journal of virology

authors： Hu J,Anselmo D

更新日期：2000-12-01 00:00:00

abstract：:Kaposi sarcoma-associated herpesvirus (KSHV) is necessary but not sufficient for primary effusion lymphoma (PEL) development. Alterations in cellular signaling pathways are also a characteristic of PEL. Other B cell lymphomas have acquired an oncogenic mutation in the myeloid differentiation primary response 88 (MYD88...

journal_title：Journal of virology

authors： Seltzer J,Moorad R,Schifano JM,Landis JT,Dittmer DP

更新日期：2020-05-04 00:00:00