Abstract:
:Some differences were established between mopyridone-sensitive (MCU-s) wild strain and mopyridone-resistant (MCU-r) mutant progenies of influenza virus A/Hong Kong/1/68 (H3N2). The virions of MCU-r mutant had a lower buoyant density in linear sucrose gradient as compared to those of MCU-s strain, and an increased ability of aggregation as well. HA content (HAU/micrograms protein) in the purified virions of MCU-r mutant was twice lower as compared to MCU-s strain. The surface glycoproteins of MCU-r mutant were solubilized by octylglucoside faster than those of MCU-s strain. No differences were found between MCU-r strain and MCU-s mutant-induced red blood cell lysis at acid pH, and mopyridone did not influence this phenomenon. MCU-r mutant showed a lower thermostability as compared with MCU-s strain, but similar UV-inactivation curves for both viruses were observed. The quantity of the purified HA-NA complex and M1 protein incorporated into multilamellar liposomes was greater in the case of MCU-s mutant. Electron microscopy examination of liposomes which contained M1 protein from MCU-r mutant manifested pleomorphism with unusual gigantic forms tending to aggregate, whereas MCU-s M1 protein-containing liposomes were uniform and did not form aggregates. No morphological differences were found between the two viruses in HA-NA complex containing liposomes. These data indicate changes in the protein-lipid interactions in MCU-r mutant virions. Amino acid analysis of M1 protein revealed significantly lower content of asparagine, glutamine and serine, and a higher one oof hisitidine in MCU-r mutant as compared to MCU-s wild strain.
journal_name
Acta Viroljournal_title
Acta virologicaauthors
Wassilewa L,Uzunov S,Galabov AS,Simonov AN,Markushin S,Alexandrov Msubject
Has Abstractpub_date
1995-04-01 00:00:00pages
79-84issue
2eissn
0001-723Xissn
1336-2305journal_volume
39pub_type
杂志文章相关文献
ACTA VIROLOGICA文献大全abstract::The first confirmed evidence of scrapie in Slovakia was demonstrated in one sheep of the autochthonous Merino breed from the southeastern part of the country. The reported scrapie was diagnosed during compulsory transmissible spongiform encephalitis (TSE) screening of sheep over 9 months of age assigned for consumptio...
journal_title:Acta virologica
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00
abstract::Human papillomavirus (HPV) E6 and E7 gene products play a central role in the induction of benign proliferation and malignant transformation by interacting with several cellular regulatory proteins such as p53, p16(INK4a), and nuclear factor kappaB (NF-kappaB). In this study, HPV DNA was detected by in situ hybridizat...
journal_title:Acta virologica
pub_type: 杂志文章
doi:10.4149/av_2009_01_43
更新日期:2009-01-01 00:00:00
abstract::An indirect enzyme-linked immunosorbent assay (ELISA) was developed for the detection of antibodies against equine herpesvirus type 2 (EHV-2) in equine sera. The optimal conditions of antigen concentration, and serum and conjugate dilutions were established by chequerboard titrations. When the standard ELISA test was ...
journal_title:Acta virologica
pub_type: 杂志文章
doi:
更新日期:1987-11-01 00:00:00
abstract::Gamma irradiation is a non-thermal processing technique used to disinfect harmful microorganisms in agriculture. This technology has been shown to be an effective method to control bacterial and fungal plant pathogens. However, its effect on viral plant pathogen is less understood. Gamma irradiation was evaluated for ...
journal_title:Acta virologica
pub_type: 杂志文章
doi:10.4149/av_2017_02_14
更新日期:2017-01-01 00:00:00
abstract::In the blood of patients with rheumatoid arthritis and/or sclerodermia systematica usually acid-labile interferon-alpha (IFN-alpha) was found. Blood leukocytes cannot be considered the source of its production as they spontaneously produce IFN-gamma identified with specific antiserum. Blood leukocytes of tested patien...
journal_title:Acta virologica
pub_type: 杂志文章
doi:
更新日期:1993-02-01 00:00:00
abstract::Transfer factor specific for herpes simplex virus (HSV) type 1 (TFHSV-1) was prepared from splenic cells of HSV-1 immunized mice. Protection was transferred with TFHSV-1 to nonimmune mouse recipients. The TFHSV-1 injected mice had a higher survival rate after lethal HSV-1 challenge as compared to mice injected with a ...
journal_title:Acta virologica
pub_type: 杂志文章
doi:
更新日期:1987-11-01 00:00:00
abstract::Red clover mottle virus was kept in 0.1 M phosphate buffer, pH 7.0, at 4, --20 and --60 degrees C for 1 and 4 weeks and 3 months. The degree of virion disintegration was the highest at --20 degrees C and the lowest at 4 degrees C. Two cycles of freezing and thawing destroyed the virions. In frozen samples (at both --2...
journal_title:Acta virologica
pub_type: 杂志文章
doi:
更新日期:1977-01-01 00:00:00
abstract:UNLABELLED:Influenza A (H1N1) virus is an important pathogen that can be transmitted in the enzootic cycle involved in influenza epidemics. In this study, we analyzed natural selection on the 260 sequences of subtype 1 hemagglutinin (HA1) gene of H1N1 viruses isolated from humans and swine in Asia. Nonsynonymous and sy...
journal_title:Acta virologica
pub_type: 杂志文章
doi:10.4149/av_2010_02_113
更新日期:2010-01-01 00:00:00
abstract::Acute isolates of Coxiella burnetii possess a 36-kbp plasmid termed QpH1. DNA hybridizations show that QpH1 contains approximately 6-kbp region of DNA which is not present in the QpRS plasmid from chronic isolates. This QpH1-specific region of DNA contains the contiguous EcoRI fragments G, E, and D. The GED region was...
journal_title:Acta virologica
pub_type: 杂志文章
doi:
更新日期:1991-11-01 00:00:00
abstract::A gene bank of Rickettsia prowazekii strain E constructed in the phage vector lambda EMBL4 was screened for antigen production with anti-R. prowazekii serum. One of the immunoreactive clones, grown at 37 degrees C exhibited the expression of at least two antigens of molecular weight (M(r)) 37 kD and 14 kD. Subcloning ...
journal_title:Acta virologica
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
abstract::Oral immunization of volunteers with a live tissue culture influenza A (H3N2) vaccine induced an increase in virus neutralizing (VN), haemagglutination inhibiting (HI) and neuraminidase inhibiting (NI) antibody. The dynamics of antibody and IgM and IgG immunoglobulin formation in the blood depended to a great extent o...
journal_title:Acta virologica
pub_type: 杂志文章
doi:
更新日期:1979-01-01 00:00:00
abstract::In September 2011, the leaf samples of hosta cultivar 'Sum and substance' were collected from the collection of Gryshko' National Botanical Garden in Kyiv. The leaves showed dark green streaking and puckering along the leaf veins. Transmission electron microscopy revealed the presence of filamentous viral particles 13...
journal_title:Acta virologica
pub_type: 杂志文章
doi:10.4149/av_2017_415
更新日期:2017-01-01 00:00:00
abstract::The human immunodeficiency virus (HIV) envelope, via a key extracellular amino acid sequence, may simulate the functionality of native undecapeptide substance P (SP) acting through the host's neurokinin 1 (SP preferring) receptor (NK-1R). Human monocytes and macrophages express both NK-1Rs and SP. In HIV/AIDS the NK-1...
journal_title:Acta virologica
pub_type: 杂志文章,评审
doi:10.4149/av_2019_302
更新日期:2019-01-01 00:00:00
abstract::Besides other factors, occurrence of plum pox virus (PPV)-caused spots and mosaic symptoms on leaves of stone fruits are known to influence important physiological functions including production of assimilates. Apricot (Prunus armeniaca L.) seedlings were used as a test material for typical manifestation of symptoms o...
journal_title:Acta virologica
pub_type: 杂志文章
doi:
更新日期:1998-09-01 00:00:00
abstract::The effect of Ribavirin treatment for the chemotherapy of several grapevine viruses was evaluated. Four grapevine cultivars were repeatedly treated with Ribavirin in two different concentrations and with three different lengths of treatment. Repeating the Ribavirin treatment always had a significant effect on the numb...
journal_title:Acta virologica
pub_type: 杂志文章
doi:10.4149/av_2016_04_400
更新日期:2016-01-01 00:00:00
abstract::The novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has undoubtedly created an emerging disease of topmost public health priority spilling throughout the globe. The diagnosis currently relies on a multiplex of criteria including the epidemiology, clinical manifestations and in vitro diagnostics. Pr...
journal_title:Acta virologica
pub_type: 杂志文章,评审
doi:10.4149/av_2020_402
更新日期:2020-01-01 00:00:00
abstract::The uses of the nonionic detergent Triton X-100 (TX-100) and the cationic cetyltrimethylammonium bromide (CTAB) for the production of tick-borne encephalitis (TBE) virus subunits were compared. TX-100 splitted the virus into haemagglutinating envelope components which contain the virion proteins V3 and V1 and into a l...
journal_title:Acta virologica
pub_type: 杂志文章
doi:
更新日期:1979-05-01 00:00:00
abstract::An abortive infection was induced in L cells by influenza virus A/Hong Kong/68 (H3N2). With the use of antibody and peroxidase-labelled protein A, the localization of virus protein synthesis but not the maturation of virus particles was demonstrated at the ultrastructural level. Five days after inoculation (p.i.), the...
journal_title:Acta virologica
pub_type: 杂志文章
doi:
更新日期:1981-11-01 00:00:00
abstract::Tick-borne encephalitis (TBE), a disease caused by tick-borne encephalitis virus (TBEV), represents a serious neural infection of humans in Europe and Asia. The main reservoir hosts of TBEV are ticks, rodents and insectivores, but domestic animals may also be infected with the virus. This review summarizes what is kno...
journal_title:Acta virologica
pub_type: 杂志文章
doi:10.4149/av_2020_212
更新日期:2020-01-01 00:00:00
abstract::RNA of partially purified Kemerovo virus sedimented in a relatively broad region in sucrose density gradient with a peak at 14 S. Approximately 65% of this RNA was resistant to the action of ribonuclease which indicates the double-stranded nature of Kemerovo virus RNA. ...
journal_title:Acta virologica
pub_type: 杂志文章
doi:
更新日期:1975-01-01 00:00:00
abstract::Avian infectious bronchitis virus (IBV) and avian pathogenic Escherichia coli (APEC) are two important respiratory pathogens in the chicken. The co-infection can lead to chronic complications and considerable economic losses in the poultry industry worldwide. In the present study, we compared differential transcriptio...
journal_title:Acta virologica
pub_type: 杂志文章
doi:10.4149/av_2020_413
更新日期:2020-01-01 00:00:00
abstract::Every year, the poultry industry experiences significant economic losses due to epidemics of Newcastle disease virus (NDV). Developing new vaccines by identifying and using the immunogenic hemagglutinin-neuraminidase (HN) protein can protect the poultry industry. In the present study, the full-length HN protein was ex...
journal_title:Acta virologica
pub_type: 杂志文章
doi:10.4149/av_2020_310
更新日期:2020-01-01 00:00:00
abstract::The influenza virus M2 protein has an ion channel activity that permits ions to enter the virion during its uncoating and also modulates pH of intracellular compartments. M2 protein is a homotetramer consisting of either a pair of disulfide-linked dimers or a disulfide-linked tetramer. The M2 trans-membrane domain pep...
journal_title:Acta virologica
pub_type: 杂志文章,评审
doi:
更新日期:1995-06-01 00:00:00
abstract::Differences in interfering activities were demonstrated between low-passage epidemic and thermosensitive cold-adapted strains of influenza viruses A and B in experiments on chick embryos inoculated on the chorioallantoic membranes and on white mice. At a high multiplicity of infection the thermosensitive variants show...
journal_title:Acta virologica
pub_type: 杂志文章
doi:
更新日期:1982-05-01 00:00:00
abstract::14C-labelled Lassa virus was purified by isopycnic centrifugation and split to subvirion fractions. The purified virus was treated with nonionic detergents Nonidet P-40 (NP-40) and with octylglycoside. After ultracentrifugation in urographin density gradient, two subvirion fractions with buoyant density of 1.24-1.26 a...
journal_title:Acta virologica
pub_type: 杂志文章
doi:
更新日期:1989-03-01 00:00:00
abstract::To investigate whether Epstein-Barr virus (EBV) is associated with ordinary gastric carcinoma and to determine its genotype, samples from ordinary gastric carcinoma from 65 patients (40 males, 20 females) and 21 endoscopic biopsies from 7 individuals with non-neoplastic mucosa were analysed using one-stage and nested ...
journal_title:Acta virologica
pub_type: 杂志文章
doi:
更新日期:1998-12-01 00:00:00
abstract::The effect of some cellular function inhibitors on adsorption and successive events of penetration of vesicular stomatitis virus to phylogenetically unrelated permissive cells was investigated. Treatment of HeLa, CER, EPC and Aedes albopictus cells with colcemide and cytochalasin D which affect cytoskeleton organizati...
journal_title:Acta virologica
pub_type: 杂志文章
doi:
更新日期:1988-11-01 00:00:00
abstract::An assay protocol based on exploiting the polymerase chain reaction (PCR) for the direct detection of influenza B virus in throat swabs is described. By the use of PCR with nested primers, it was possible to detect the virus in throat swabs. Dilution experiments showed that as little as 1 plaque forming unit of virus ...
journal_title:Acta virologica
pub_type: 杂志文章
doi:
更新日期:1992-05-01 00:00:00
abstract::Spleen cells from mice infected with human adenovirus type 6 (Ad6) showed defective interleukin 2 (IL2) production 3-5 days after the infection. The response of spleen cells to exogenous IL 2 was also deficient. The impaired capacity of concanavalin A--(Con A)-activated spleen cells from Ad6--infected mice to utilize ...
journal_title:Acta virologica
pub_type: 杂志文章
doi:
更新日期:1991-08-01 00:00:00
abstract::Nine samples of diseased Malvastrum coromandelianum plants collected from the fields in Yunnan province of China were found to be infected with Malvastrum yellow vein Yunnan virus (MYVYNV), when tested by PCR using specific primers. The results of PCR and Southern blot analysis showed that only 4 samples out of 9 were...
journal_title:Acta virologica
pub_type: 杂志文章
doi:10.4149/av_2010_01_21
更新日期:2010-01-01 00:00:00