منابع مشابه
Genetics of bacteriophage P22. II. Gene order and gene function.
Although large numbers of temperate phages are known to exist in nature, only a small number of these have been examined in much detail. Foremost among these is the coliphage ~, which has been studied in great depth over the past two decades. However, it is already quite clear that phage ~ represents only one alternative among many with respect to any of its interesting properties. Most other t...
متن کاملPneumoviruses: Molecular Genetics and Reverse Genetics
Pneumoviruses are responsible for significant respiratory disease in their hosts and represent a major problemfor human and animal health. Pneumoviruses are members of the family Paramyxoviridae, subfamilyPneumovirinae and the virus particles consist of a negative-sense, nonsegmented RNA genome within a helical nucleocapsid structure enveloped in a lipid membrane derived from the ho...
متن کاملGenetics of bacteriophage P22. I. Isolation of prophage deletions which affect immunity to superinfection.
Two kinds of prophage deletions of the Salm.onella phage P22 were isolated. One type of deletion was isolated by simultaneously selecting for loss of a host gene (pro) adjacent to the integrated prophage and for survival at the nonpermissive temperature of a temperature-inducible (tse2) lysogen. The second type of deletion was isolated by transduction to tetracycline resistance using high-frequ...
متن کاملGenetic analysis of bacteriophage P22 lysozyme structure.
The suppression patterns of 11 phage P22 mutants bearing different amber mutations in the gene encoding lysozyme (19) were determined on six different amber suppressor strains. Of the 60 resulting single amino acid substitutions, 18 resulted in defects in lysozyme activity at 30 degrees; an additional seven were defective at 40 degrees. Revertants were isolated on the "missuppressing" hosts fol...
متن کاملEcoRI analysis of bacteriophage P22 DNA packaging.
Bacteriophage P22 linear DNA molecules are a set of circularly permuted sequences with ends located in a limited region of the physical map. This mature form of the viral chromosome is cut in headful lengths from a concatemeric precursor during DNA encapsulation. Packaging of P22 DNA begins at a specific site, which we have termed pat, and then proceeds sequentially to cut lengths of DNA slight...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Microbiological Reviews
سال: 1978
ISSN: 0146-0749
DOI: 10.1128/mmbr.42.2.385-413.1978