abstract：:Specific cleavage of BK virus (MM) DNA with restriction endonuclease MboI gives rise to 10 fragments. Two techniques were used to determine the location of these fragments on the viral genome with respect to the three known sites for HindIII cleavage. In the first method, reciprocal digestion, individual MboI fragment...

journal_title：Journal of virology

authors： Yang RC,Wu R

更新日期：1978-09-01 00:00:00

abstract：:The involvement of the mouse mammary tumor virus (MTV) in spontaneous and hormone-induced mammary tumors in low-mammary-tumor mouse strains was studied by comparing the amounts of MTV RNA and MTV DNA sequences in mammary tumors and other tissues of mice with an without hormonal treatments. The following results were o...

journal_title：Journal of virology

authors： Michalides R,van Deemter L,Nusse R,Röpcke G,Boot L

更新日期：1978-09-01 00:00:00

abstract：:The St-1 genome is about 6,050 base pairs in size, approximately 10% larger than phiX174 (5,375 base pairs). The DNA fragments obtained by HincII, HaeIII, and EcoRI digestion were ordered and aligned into a colinear map, and the single BglI cleavage site was located. ...

journal_title：Journal of virology

authors： Grindley JN,Godson GN

更新日期：1978-09-01 00:00:00

abstract：:Inhibition of RNA synthesis of the LH strain of type 3 poliovirus at the restrictive temperature occurs concurrently with the breakdown of noncapsid virus-specific peptide 2. This finding, along with other reported data (B.D. Korant, In Proteases and Biological Control, p. 621-644, 1975), suggests that noncapsid virus...

journal_title：Journal of virology

authors： Bowles SA,Tershak DR

更新日期：1978-08-01 00:00:00

abstract：:Infection of monkey cells with human adenovirus (Ad) is abortive, but the infection can be enhanced by coinfecting with simian virus 40 (SV40). However, in the coinfected monkey cells, Ad interferes strongly with SV40 DNA biosynthesis. This interference was found to be a reproducible, delicately controlled phenomenon ...

journal_title：Journal of virology

authors： van Roy F,Fiers W

更新日期：1978-08-01 00:00:00

abstract：:Type C RNA virus(es) was readily released from primary lymphosarcoma cell cultures of WH/J rabbits after induction with halogenated pyrimidines. The virus contained an RNA-directed DNA polymerase and the p30 structural protein. The rabbit virus RNA-directed DNA polymerase and p30 protein shared antigenic homologies wi...

journal_title：Journal of virology

authors： Bedigian HG,Fox RR,Meier H

更新日期：1978-08-01 00:00:00

abstract：:Treatment of polyoma virions with ethyleneglycol-bil-N,N'-tetraacetic acid (EGTA) and dithiothreitol (DTT) at pH 8.5 resulted in the dissociation of the virions into a DNA-protein complex and individual structural capsomere subunits. The sedimentation value of the DNA-protein complex in sucrose gradients was approxima...

journal_title：Journal of virology

authors： Brady JN,Winston VD,Consigli RA

更新日期：1978-07-01 00:00:00

abstract：:Treatment of influenza virus and its purified hemagglutining with glycosidases from Diplococcus pneumoniae, which included beta-galactosidase, beta-N-acetylglucosminidase, and endoglycosidase D, released amino and neutral sugars from the virus and these as well as large oligosaccharides from the purified hemagglutinin...

journal_title：Journal of virology

authors： Collins JK,Knight CA

更新日期：1978-07-01 00:00:00

abstract：:Escherichia coli K-12 wild type and a uvrA mutant derivative were used to construct isogenic strains bearing one, two, three, or more phage lambda cI genomes and containing increasing concentration of lambda repressor as measured by in vitro operator DNA-binding assays. The survival and phage induction in response to ...

journal_title：Journal of virology

authors： Baluch J,Sussman R

更新日期：1978-06-01 00:00:00

abstract：:The sodium dodecyl sulfate (SDS) complex of the major glycoprotein of avian myeloblastosis virus exhibited an anomalously low free electrophoretic mobility compared with those of non-glycosylated protein standards. The apparent molecular weight of the glycoprotein calculated from the relation between log molecular wei...

journal_title：Journal of virology

authors： Marciani DJ,Papamatheakis JD

更新日期：1978-06-01 00:00:00

abstract：:The RNAs of replication-defective murine and primate type C transforming viruses were analyzed for the presence of nucleotide sequences homologous to the genomes of their respective helper type C viruses by using DNAs complementary (cDNA) to either the 5'-terminal (cDNA5') or total (cDNAtotal) nucleotide sequences of ...

journal_title：Journal of virology

authors： Tronick SR,Cabradilla CD,Aaronson SA,Haseltine WA

更新日期：1978-06-01 00:00:00

abstract：:FMR antigens are found on the surface of cells infected with Friend, Moloney, and Rauscher murine leukemia viruses (MuLV). These antigens are serologically distinct from the G cell surface antigens that are found on cells infected with endogenous MuLV (AKR and Gross virus). Cell surface antigens of both virus groups a...

journal_title：Journal of virology

authors： Nowinski RC,Emery S,Ledbetter J

更新日期：1978-06-01 00:00:00

abstract：:We have studied the unintegrated infectious DNA of Harvey sarcoma virus (Ha-SV) and Moloney leukemia virus (Mo-MuLV). The source of infectious viral DNA was the Hirt supernatant fraction from cells acutely infected with Ha-SV and Mo-MuLV. To obtain a direct quantitative assay for infectious viral DNA, recipient mouse ...

journal_title：Journal of virology

authors： Lowy DR,Rands E,Scolnick EM

更新日期：1978-05-01 00:00:00

abstract：:Hemagglutinin from influenza A/PR8 virus was purified after treatment of the virus with sodium deoxycholate followed by extraction with tri-n-butyl phosphate. This fully disrupted the virus while preserving hemagglutinating activity. The hemagglutinin was obtained in the form of small aggregates that could be separate...

journal_title：Journal of virology

authors： Collins JK,Knight CA

更新日期：1978-05-01 00:00:00

abstract：:Lymphomas induced by pure HIX murine leukemia virus in two mouse strains contained large amounts of virus with amphotropic properties. Analysis of tumor derived virus purified by limiting dilution techniques indicated that its interference and neutralization spectra were essentially identical to parental HIX virus and...

journal_title：Journal of virology

authors： Fischinger PJ,Dunlop NM,Blevins CS

更新日期：1978-05-01 00:00:00

abstract：:Poliovirus inactivation by ammonia causes a slight reduction in the sedimentation coefficients of viral particles, but has no detectable effect on either the electrophoretic pattern of viral capsid proteins or the isoelectric points of inactivated particles. These virions still attach to cells, but are unable to repre...

journal_title：Journal of virology

authors： Ward RL

更新日期：1978-05-01 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：:Cells infected by Rous-associated virus 61 (RAV-61) contained a precursor-like protein, pr90, that was specifically precipitated by antiserum directed against envelope glycoproteins, gp85 and gp35. Tryptic peptide mapping showed that pr90 contained tryptic sequences of both gp85 and gp35. Pactamycin mapping experiment...

journal_title：Journal of virology

authors： Shealy DJ,Rueckert RR

更新日期：1978-05-01 00:00:00

abstract：:Virus-like particles were purified from stools of patients in an epidemic of hepatitis A in Germany. When reference MS-1 chimpanzee pre-inoculation and convalescent sera were used, the close serological relationship of the purified particles to well-known isolates of hepatitis A could be established. On the other hand...

journal_title：Journal of virology

authors： Siegl G,Frösner GG

更新日期：1978-04-01 00:00:00

abstract：:Rolling circle-type molecules were found in polyoma virus-infected cells after inhibition of DNA synthesis with 2'-deoxy-2'-azidocytidine. The circular DNA molecules were always relaxed and of polyoma length. Most of the attached tails were less than two times the length of the polyoma genome, but tails with a length ...

journal_title：Journal of virology

authors： Bjursell G

更新日期：1978-04-01 00:00:00

abstract：:A Sepharose 4B chromatographic method for purification of retroviruses is described which was less time consuming, increased purified virus yields, conserved viral glycoprotein, and increased recovery of biological infectivity in comparison with conventional sucrose gradient ultracentrifugation techniques. ...

journal_title：Journal of virology

authors： McGrath M,Witte O,Pincus T,Weissman IL

更新日期：1978-03-01 00:00:00

abstract：:Cytoplasmic virus-specific RNA and polyribosomes from a chronically infected feline thymus tumor cell line, F-422, were analyzed by using in vitro-synthesized feline leukemia virus (Rickard strain) (R-FeLV) complementary DNA (cDNA) probe. By hybridization kinetics analysis, cytoplasmic, polyribosomat, and nuclear RNAs...

journal_title：Journal of virology

authors： Conely AJ,Velicer LF

更新日期：1978-03-01 00:00:00

abstract：:Measles virus has two glycoproteins. The larger glycoprotein (HA) is composed of 76,000-dalton subunits that are bound by disulfide bonds. The smaller glycoprotein (F) appears to contain a glucosamine-rich portion that is linked to an unglycosylated protein by disulfide bonds. ...

journal_title：Journal of virology

authors： Hardwick JM,Bussell RH

更新日期：1978-02-01 00:00:00

abstract：:Polyoma virus complementary RNA, synthesized in vitro by using highly purified Escherichia coli RNA polymerase and nondefective form I polyoma DNA, was translated in a wheat germ cell-free system. Polypeptides were synthesized that comigrated on sodium dodecyl sulfate-polyacrylamide gels with the polyoma capsid protei...

journal_title：Journal of virology

authors： Mangel WF,Hewick RM,Bayley ST,Wheeler T,Harvey R,Waterfield MD,Smith AE

更新日期：1978-02-01 00:00:00

abstract：:The localization of H-1 viral replicative-form double-stranded DNA and progeny single-stranded DNA replication in parasynchronously infected, simian virus 40-transformed newborn human kidney cells was studied with high-resolution electron microscope autoradiography (80-nm silver grains). We analyzed wild-type H-1 and ...

journal_title：Journal of virology

authors： Singer II,Rhode SL 3rd

更新日期：1978-01-01 00:00:00

abstract：:Transfection has been found and characterized in pneumococcus. For replicating omega3 phage DNA extracted from infected cells, transfection was relatively efficient and rose linearly with DNA concentration and quadratically with time, according to T(T - 3.5) min(2). For mature DNA extracted from phage particles, trans...

journal_title：Journal of virology

authors： Porter RD,Guild WR

更新日期：1978-01-01 00:00:00

abstract：:Cells of the established MvlLu mink line spontaneously released a reverse transcriptase-containing virus after long-term passage in tissue culture. By molecular hybridization, DNA of normal mink cells was found to possess extensive nucleotide sequence homology with a reverse-transcription product of the viral genome, ...

journal_title：Journal of virology

authors： Barbacid M,Tronick SR,Aaronson SA

更新日期：1978-01-01 00:00:00

abstract：:Synthesis of polynucleotide 5'-triphosphatase, which is presumably involved in the initial modification in the series of reactions by which 5'-termini of vaccinia mRNA become capped and methylated, has been demonstrated in vaccinia virus infected HeLa cells. Synthesis of the enzyme is prevented by actinomycin D and cy...

journal_title：Journal of virology

authors： Tutas DJ,Paoletti E

更新日期：1978-01-01 00:00:00

abstract：:In this paper, we report that the DNA of bovine mammillitis virus (BMV) consists of two covalently linked components that are 71.5 x 10(6) and 15.7 x 10(6) in molecular weight and designated L and S, respectively. We further report that the BMV DNA consists of four equimolar populations differing only in the orientati...

journal_title：Journal of virology

authors： Buchman TG,Roizman B

更新日期：1978-01-01 00:00:00

abstract：:A specific endoribonucleolytic activity was detected when detergent-lysed vesicular stomatitis of Sendai virus was incubated with the precursor to Escherichia coli tRNA Tyr. The cleavage products produced and the characteristics of the reaction were similar to those previously reported for human KB cell RNase NU. Like...

journal_title：Journal of virology

authors： Kolakofsky D,Altman S

更新日期：1978-01-01 00:00:00

abstract：:A novel species of 30S RNA has been detected in a variety of mouse cell lines. The 30S RNA is specifically packaged by helper-independent type C viruses propagated in such cells. Nucleic acid hybridization detects no homology between the 30SRNA and the genomic RNA of helper-independent mouse type C viruses. The proper...

journal_title：Journal of virology

authors： Howk RS,Troxler DH,Lowy D,Duesberg PH,Scolnick EM

更新日期：1978-01-01 00:00:00

abstract：:The proteins of purified avian oncoviruses were analyzed by sodium dodecyl sulfate (SDS)-polyacrylamide gel electrophoresis and isoelectric focusing. Certain members of the avian leukosis-sarcoma viruses (ALSV) had group-specific antigens with altered electrophoretic properties. (i) The p27 protein of Rous-associated ...

journal_title：Journal of virology

authors： Rettenmier CW,Hanafusa H

更新日期：1977-12-01 00:00:00

abstract：:The genome of the simian virus 40 (SV40) temperature-sensitive (ts) mutant tsD202 rescued by passage on transformed permissive monkey lines (see accompanying paper [Y. Gluzman et al., J. Virol. 24:534-540, 1977]) was analyzed by restriction endonuclease cleavage mapping to obtain biochemical evidence that the rescue o...

journal_title：Journal of virology

authors： Vogel T,Gluzman Y,Winocour E

更新日期：1977-11-01 00:00:00

abstract：:Tryptic digests of four polypeptides found in Kunjin virus-infected Vero cells, NV5, NV4, V3, and NV3, were compared by peptide mapping. The polypeptides to be analyzed were labeled with radioactive methionine and separated by electrophoresis through polyacrylamide gels containing sodium dodecyl sulfate. Because infec...

journal_title：Journal of virology

authors： Wright PJ,Bowden DS,Westaway EG

更新日期：1977-11-01 00:00:00

abstract：:Virions produced by cells in the presence of actinomycin D (Act D virions) contain reverse transcriptase but are deficient in 70S genomic RNA. To assess the role of genomic RNA in encapsidation of a functional reverse transcriptase and to study the interaction of the enzyme and its template in the cores of intact viri...

journal_title：Journal of virology

authors： Gerwin BI,Levin JG

更新日期：1977-11-01 00:00:00

abstract：:The nucleoprotein of the WSN strain of influenza was found to be phosphorylated in vitro. The phosphate-protein bond was stable to hot trichloroacetic acid, RNase, DNase, succinic acid, and succinic acid-hydroxylamine, but sensitive to hydrolysis by bacterial alkaline phosphatase. This suggested that the nucleoprotein...

journal_title：Journal of virology

authors： Privalsky ML,Penhoet EE

更新日期：1977-10-01 00:00:00

abstract：:Techniques are described for the growth and rapid purification of the avian coronavirus infectious bronchitis virus (IBV). Purified IBV has a sedimentation coefficient of 320S and a buoyant density of 1.22 g/ml in sucrose-deuterium oxide equilibrium gradients. IBV RNA extracted by proteinase K in the presence of sodiu...

journal_title：Journal of virology

authors： Lomniczi B,Kennedy I

更新日期：1977-10-01 00:00:00

abstract：:Most of the viral DNA extracted from simian virus 40 (SV40)-infected African green monkey kidney cells consists of circular molecules about 5.3 kilobases in contour length. However, about 1% of the viral DNA was found to occur as closed circular dimers that appeared to be formed, preferentially, late in infection. The...

journal_title：Journal of virology

authors： Goff SP,Berg P

更新日期：1977-10-01 00:00:00

abstract：:The genetic basis for the distinctive capacity of influenza A/WSN/33 (H0N1) virus (WSN virus) to produce plaques on bovine kidney (MDBK) cells was found to be related to virus neuraminidase. Recombinant viruses that derived only the neuraminidase of WSN virus were capable of producing plaques, whereas recombinant viru...

journal_title：Journal of virology

authors： Schulman JL,Palese P

更新日期：1977-10-01 00:00:00

abstract：:This paper is concerned with the physiological role(s) of T4 phage-coded dihydrofolate reductase, which functions both in DNA precursor metabolism and as a virion protein. (i) We have detected enzyme activity in noninfectious particles produced under restrictive conditions by gene 11 mutants. This supports the conclus...

journal_title：Journal of virology

authors： Mosher RA,DiRenzo AB,Mathews CK

更新日期：1977-09-01 00:00:00