Specificity of bipartite geminivirus movement proteins.

abstract：:Bacteriophage phi 29 DNA polymerase is sensitive to aphidicolin (APH). DNA polymerase of the APH-resistant mutant, APHr71, was more sensitive to phosphonoacetic acid and butylphenyldeoxyguanosine 5'triphosphate than the wild type. Nucleotide sequence analysis revealed a single transition of G at nucleotide 562 to A in...

journal_title：Virology

authors： Matsumoto K,Kim CI,Kobayashi H,Kanehiro H,Hirokawa H

更新日期：1990-09-01 00:00:00

abstract：:HIV-1 Vpu antagonizes the block to particle release mediated by CD317 (BST-2/HM1.24/Tetherin) via incompletely understood mechanisms. Vpu and CD317 partially reside in cholesterol-rich lipid rafts where HIV-1 budding preferentially occurs. Here we find that lipid raft association of ectopically expressed or endogenous...

journal_title：Virology

authors： Fritz JV,Tibroni N,Keppler OT,Fackler OT

更新日期：2012-03-01 00:00:00

abstract：:Recently, we reported that in vitro and in vivo persistent infection of neurons by lymphocytic choriomeningitis virus (LCMV) downregulated GAP43 expression, a protein involved in neuronal plasticity associated with learning and memory. Here, we investigated the transcriptional and posttranscriptional events involved. ...

journal_title：Virology

authors： Cao W,Oldstone MB,De La Torre JC

更新日期：1997-04-14 00:00:00

abstract：:Tobacco plants transformed with the P1 and P2 replicase genes of alfalfa mosaic virus (AIMV) have been shown to produce functional replicase proteins, permitting their infection with AIMV inocula lacking the genome segments encoding P1 and P2, respectively. To see whether expression of a mutant P2 protein would interf...

journal_title：Virology

authors： Brederode FT,Taschner PE,Posthumus E,Bol JF

更新日期：1995-03-10 00:00:00

abstract：:Neutralizing antibodies (Nabs) are thought to play an important role in prevention and control of HIV-1 infection and should be targeted by an AIDS vaccine. It is critical to understand how HIV-1 induces Nabs by analyzing viral sequences in both tested viruses and sera. Neutralization susceptibility to antibodies in a...

journal_title：Virology

authors： Kirchherr JL,Hamilton J,Lu X,Gnanakaran S,Muldoon M,Daniels M,Kasongo W,Chalwe V,Mulenga C,Mwananyanda L,Musonda RM,Yuan X,Montefiori DC,Korber BT,Haynes BF,Gao F

更新日期：2011-01-20 00:00:00

abstract：:The trans-activation-responsive (TAR) element located within the 5' untranslated region of HIV-1 mRNA is the cis-responsive element for Tat, the viral trans-activator protein. Several TAR RNA binding proteins (TRBPs) have been identified in the nuclear extract from HeLa cells as cellular factors required for a full Ta...

journal_title：Virology

authors： Masuda T,Harada S

更新日期：1993-02-01 00:00:00

abstract：:The pathogenesis of two Californian strains of myxoma virus (MSW and MSD) was examined in European rabbits (Oryctolagus cuniculus) that were either susceptible to myxomatosis (laboratory rabbits) or had undergone natural selection for genetic resistance to myxomatosis (Australian wild rabbits). MSW was highly lethal f...

journal_title：Virology

authors： Silvers L,Inglis B,Labudovic A,Janssens PA,van Leeuwen BH,Kerr PJ

更新日期：2006-04-25 00:00:00

abstract：:Ovine pulmonary carcinoma, a contagious lung cancer of sheep, is caused by the oncogenic jaagsiekte sheep retrovirus (JSRV) that is closely related to a family of endogenous sheep retroviral sequences (ESRVs). By using exogenous virus-specific U3 oligonucleotide primers, the entire JSRV proviral genome or its 3' part ...

journal_title：Virology

authors： Bai J,Bishop JV,Carlson JO,DeMartini JC

更新日期：1999-06-05 00:00:00

abstract：:Within the family of Poxviridae, the entomopoxviruses are the most distant relatives of the more well-known and intensively studied orthopoxviruses (vaccinia and variola). The growth of the entomopoxvirus from Amsacta moorei (AmEPV) has been characterized in cell culture and compared to that of vaccinia virus (VV), th...

journal_title：Virology

authors： Winter J,Hall RL,Moyer RW

更新日期：1995-08-20 00:00:00

abstract：:The measles virus (MV) phosphoprotein (P) gene encodes three proteins, P, C, and V. The V protein is synthesized by pseudo-templated transcription, also designated as RNA editing: during P gene transcription one G residue is inserted at a defined position in about 50% of the mRNAs. To study the importance of sequence ...

journal_title：Virology

authors： Schneider H,Kaelin K,Billeter MA

更新日期：1997-01-20 00:00:00

abstract：:The 682-nt satellite DNA (sat-DNA) of Tomato leaf curl virus (TLCV) depends on the helper virus for its replication. In contrast to the strict specificity that exists in each geminivirus for its cognate replication associated protein (Rep), TLCV sat-DNA can utilize Rep encoded by distinct geminiviruses. We have used a...

journal_title：Virology

authors： Lin B,Akbar Behjatnia SA,Dry IB,Randles JW,Rezaian MA

更新日期：2003-01-20 00:00:00

abstract：:To better understand the role of specific residues within the duck hepatitis B virus (DHBV) pre-S protein in neutralization and infectivity, we have selected and identified pre-S variants which escape neutralization. A highly neutralizing monoclonal antibody (Mab 900) which recognizes an epitope 83IPQPQWTP90 localized...

journal_title：Virology

authors： Sunyach C,Chassot S,Jamard C,Kay A,Trepo C,Cova L

更新日期：1997-08-04 00:00:00

abstract：:High-risk human papillomaviruses (HPVs) are etiologically implicated in human cervical cancer. Two viral genes, E6 and E7, are commonly found expressed in these cancer cells. We have previously shown that mice transgenic for the HPV-16 E6 gene or E7 gene, in which the E6 or E7 was expressed in the basal layer of epith...

journal_title：Virology

authors： Song S,Liem A,Miller JA,Lambert PF

更新日期：2000-02-15 00:00:00

abstract：:The prototypic macrophage-tropic HIV-1 isolate, HIV-1BaL, cannot replicate in the monocytoid cell line THP-1. After induction of differentiation by a phorbol diester, a fraction of THP-1 cells became permissive to HIV-1BaL. In contrast, this treatment decreased permissiveness for the lymphotropic isolate HIV-1LAI. Vir...

journal_title：Virology

authors： Meylan PR,Spina CA,Richman DD,Kornbluth RS

更新日期：1993-03-01 00:00:00

abstract：:To further our understanding of structure-function relationships within the multifunctional adenovirus DNA binding protein (DBP) a more diverse collection of mutants is necessary. DBP-expressing cell lines (gmDBP) were previously constructed that complemented DBP-negative mutants for viral growth. However, they did no...

journal_title：Virology

authors： Brough DE,Cleghon V,Klessig DF

更新日期：1992-10-01 00:00:00

abstract：:The X protein (pX) of hepatitis B virus (HBV) is a general transcription regulator and directly associated with the transcription machinery. pX cannot bind DNA directly but interacts with cellular factors that bind the regulatory elements. There is an accumulation of evidence concerning different activities exerted by...

journal_title：Virology

authors： de-Medina T,Haviv I,Noiman S,Shaul Y

更新日期：1994-07-01 00:00:00

abstract：:We have cloned an infectious genome of the Junonia coenia densonucleosis virus (JcDNV) into the bacterial plasmid pBR322. The viral genome could be rescued from the recombinant plasmid pBRJ by transfection of pBRJ DNA to sensitive Spodoptera littoralis larvae. pBRJ DNA produced a typical viral infection and a comparab...

journal_title：Virology

authors： Jourdan M,Jousset FX,Gervais M,Skory S,Bergoin M,Dumas B

更新日期：1990-11-01 00:00:00

abstract：:cDNA clones encoding the envelope glycoprotein E1 of rubella virus (RV) were altered by site-directed mutagenesis at consensus sites for addition of N-linked glycans. The resulting plasmids were introduced into COS cells and the mutant E1 proteins were analyzed by indirect immunofluorescence, radioimmunoprecipitation,...

journal_title：Virology

authors： Hobman TC,Qiu ZY,Chaye H,Gillam S

更新日期：1991-04-01 00:00:00

abstract：:To better understand the evolution of the viral envelope glycoproteins (Env) in HIV-1 infected individuals who progress to AIDS maintaining an exclusive CCR5-using (R5) virus population, we cloned and sequenced the env gene of longitudinally obtained primary isolates. A shift in the electrostatic potential towards an ...

journal_title：Virology

authors： Repits J,Sterjovski J,Badia-Martinez D,Mild M,Gray L,Churchill MJ,Purcell DF,Karlsson A,Albert J,Fenyö EM,Achour A,Gorry PR,Jansson M

更新日期：2008-09-15 00:00:00

abstract：:The bottom component B1a of TYMV with a buoyant density of 1.42-1.43 g/ml, is converted to a more dense particle B2a following CsCI density gradient centrifugation. This conversion is complete after a prior incubation of the virus in the CsCl solution at elevated temperatures. It is shown that the formation of B28 is ...

journal_title：Virology

authors： Noort A,van den Dries CL,Pleij CW,Jaspars EM,Bosch L

更新日期：1982-07-30 00:00:00

abstract：:The mechanism of intracellular retention for the large surface protein (L) of duck hepatitis B virus (DHBV) was analyzed by examination of the transmembrane topologies and secretory properties of a collection of DHBV L mutants and compared with that of human hepatitis B virus (HBV) L. Our results demonstrate that, in ...

journal_title：Virology

authors： Gazina EV,Lin B,Gallina A,Milanesi G,Anderson DA

更新日期：1998-03-15 00:00:00

abstract：:HIV-1 variants resistant to small molecule CCR5 inhibitors such as vicriviroc (VVC) have modified Env complexes that can use both the inhibitor-bound and -free forms of the CCR5 co-receptor to enter target cells. However, entry via the inhibitor-CCR5 complex is inefficient in some, but not all, cell types, particularl...

journal_title：Virology

authors： Pugach P,Ray N,Klasse PJ,Ketas TJ,Michael E,Doms RW,Lee B,Moore JP

更新日期：2009-05-10 00:00:00

abstract：:Why some viruses establish chronic infections while others do not is poorly understood. One possibility is that the host's immune response is impaired during chronic infections and is unable to clear the virus from the host. In this report, we use a recently proposed framework to estimate the per capita killing effica...

journal_title：Virology

authors： Ganusov VV,Lukacher AE,Byers AM

更新日期：2010-09-15 00:00:00

abstract：:HIV infects macrophages and microglia in the central nervous system (CNS). Mechanisms that enhance HIV macrophage/microglial tropism are not well understood. Here, we identify an HIV Env variant in the V4 region of gp120, Asp 386 (D386), that eliminates an N-linked glycosylation site at position 386, enhances viral re...

journal_title：Virology

authors： Dunfee RL,Thomas ER,Wang J,Kunstman K,Wolinsky SM,Gabuzda D

更新日期：2007-10-10 00:00:00

abstract：:To investigate the role of Tobacco vein banding mosaic virus (TVBMV) 3'-UTR in virus systemic infection, three types of deletions were introduced into TVBMV infectious clone pCaTVBMV-GFP. Mutants with deletions at the nucleotide position 8-42, 43-141, or 163-174 in the 3'-UTR failed to cause systemic infection in N. b...

journal_title：Virology

authors： Wang Y,Yang ZY,Tian YP,Geng C,Yuan XF,Li XD

更新日期：2019-01-15 00:00:00

abstract：:Studies using transformed human cell lines suggest that most SIV strains use CCR5 as co-receptor. Our analysis of primary rhesus macaque CD4(+) T-cell clones revealed marked differences in susceptibility to SIV(mac)239 infection. We investigated whether different levels of CCR5 expression account for clonal difference...

journal_title：Virology

authors： Minang JT,Trivett MT,Barsov EV,Del Prete GQ,Trubey CM,Thomas JA,Gorelick RJ,Piatak M Jr,Ott DE,Ohlen C

更新日期：2011-01-05 00:00:00

abstract：:Callitrichid hepatitis (CH) is a highly fatal, rodent-borne zoonosis of New World primates (family Callitrichidae) caused by lymphocytic choriomeningitis virus (LCMV). It is unclear whether virulence in Callitrichidae is associated with specific genetic or phylogenetic markers of the virus as only a partial S RNA sequ...

journal_title：Virology

authors： Asper M,Hofmann P,Osmann C,Funk J,Metzger C,Bruns M,Kaup FJ,Schmitz H,Günther S

更新日期：2001-06-05 00:00:00

abstract：:The paramyxovirus fusion protein (F) promotes fusion of the viral envelope with the plasma membrane of target cells as well as cell-cell fusion. The plasma membrane is closely associated with the actin cytoskeleton, but the role of actin dynamics in paramyxovirus F-mediated membrane fusion is unclear. We examined cell...

journal_title：Virology

authors： Schowalter RM,Wurth MA,Aguilar HC,Lee B,Moncman CL,McCann RO,Dutch RE

更新日期：2006-07-05 00:00:00

abstract：:IL-17-producing (Th17) and regulatory T (Treg) cells have been well established in the pathogenesis of many inflammatory diseases. To assess whether Th17 and Treg were altered in acute virus-induced myocarditis (AVMC) mice, we assessed Th17/Treg functions on different levels in AVMC. It was shown that the expression o...

journal_title：Virology

authors： Xie Y,Chen R,Zhang X,Chen P,Liu X,Xie Y,Yu Y,Yang Y,Zou Y,Ge J,Chen H

更新日期：2011-12-05 00:00:00

abstract：:There is no effective vaccine for Marburg virus (MBGV) or any other filovirus, nor enough pertinent information to expedite rational vaccine development. To ascertain some of the minimal requirements for a MBGV vaccine, we determined whether whole inactivated MBGV, or a baculovirus-expressed virion subunit, could be u...

journal_title：Virology

authors： Hevey M,Negley D,Geisbert J,Jahrling P,Schmaljohn A

更新日期：1997-12-08 00:00:00