superinfection/tyrosine

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Phage phi80psu3+-directed tyrosine tRNA synthesis in Escherichia coli: effects of T4 phage superinfection on tyrosine suppressor-gene transcription.

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Isolation of a transformation-defective mutant of the McDonough strain of feline sarcoma virus exhibiting tyrosine kinase activity in vitro but not in vivo.

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NRK cells transformed by the McDonough strain of feline sarcoma virus (SM-FeSV) were mutagenized by the use of 5'-azacytidine. Four cell lines expressing different transformation-defective phenotypes were isolated. Superinfection of these cell lines with simian sarcoma-associated virus (SSAV) led in

Brujita Integrase: A Simple, Arm-Less, Directionless, and Promiscuous Tyrosine Integrase System.

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Mycobacteriophage Brujita is an unusual temperate phage in which establishment of superinfection immunity is dependent on chromosomal integration. Integration is mediated by a non-canonical tyrosine integrase (Int) lacking an N-terminal domain typically associated with binding to arm-type sites

Hypothesis of interference to superinfection between bovine spastic paresis and bovine spongiform encephalopathy; suggestions for experimentation, theoretical and practical interest.

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Sub-acute transmissible spongiform encephalopathies (TSEs) or prion diseases are diseases of little known etiology. The origin of these diseases would appear to be an abnormal protease-resistant prion protein (PrP(res)) which would be infectious by directly inducing its defective conformation to the

Downregulation of p56(lck) tyrosine kinase activity in T cells of squirrel monkeys (Saimiri sciureus) correlates with the nontransforming and apathogenic properties of herpesvirus saimiri in its natural host.

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Herpesvirus saimiri is capable of transforming T lymphocytes of various primate species to stable growth in culture. The interaction of the T-cellular tyrosine kinase p56(lck) with the transformation-associated viral protein Tip has been shown before to activate the kinase and provides one model for

Dermatological Toxicities of Bruton's Tyrosine Kinase Inhibitors

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The development of Bruton's tyrosine kinase (BTK) inhibitors represents a major breakthrough in the treatment of chronic lymphocytic leukemia and other B cell malignancies. The first-generation inhibitor ibrutinib works by covalent irreversible binding to BTK, a non-receptor tyrosine kinase of the

Alteration of Flt3-Ligand-dependent de novo generation of conventional dendritic cells during influenza infection contributes to respiratory bacterial superinfection.

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Secondary bacterial infections contribute to the excess morbidity and mortality of influenza A virus (IAV) infection. Disruption of lung integrity and impaired antibacterial immunity during IAV infection participate in colonization and dissemination of the bacteria out of the lungs. One key feature

Pathogenesis of Friend leukemia virus.

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Friend leukemia virus complex (FLV) consists of replication-defective, Friend spleen focus-forming virus (F-SFFV) and replication-competent, Friend murine leukemia virus (F-MuLV). We produced transgenic mice possessing F-SFFV gp55 gene and clarified that the gp55 glycoprotein encoded by F-SFFV

Analysis of glucocorticoid-inducible genes in wild-type and variant rat hepatoma cells.

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We present pharmacological and genetic evidence that regulation of different genes by glucocorticoid hormones in the rat hepatoma cell line, HTC, occurs in a coordinate manner. We have analyzed the responses of four different glucocorticoid-inducible proteins, tyrosine aminotransferase

Development of a yeast system to assay mutational specificity.

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We have developed a system wherein DNA alterations occurring in a target gene in the yeast Saccharomyces cerevisiae can be determined by DNA sequencing. The target gene, SUP4-o, an ochre suppressor allele of a yeast tyrosine tRNA gene, has been inserted into a shuttle vector (YCpMP2) which is

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