Tail Sheath and Tail Tube Genes of the Temperate Coliphage 186
نویسندگان
چکیده
منابع مشابه
Genes for the establishment and maintenance of lysogeny by the temperate coliphage 186.
To identify the genes in coliphage 186 that are required for lysogeny, we isolated clear-plaque mutants. Complementation studies and DNA sequencing identified two genes, the cI gene for the immunity maintenance repressor and the cII gene, which is required only for the establishment of lysogeny. One mutant carried a change in the LexA-binding site controlling expression of the antirepression pr...
متن کاملEstablishing lysogenic transcription in the temperate coliphage 186.
A single-copy chromosomal reporter system was used to measure the intrinsic strengths and interactions between the three promoters involved in the establishment of lysogeny by coliphage 186. The maintenance lysogenic promoter p(L) for the immunity repressor gene cI is intrinsically approximately 20-fold weaker than the lytic promoter p(R). These promoters are arranged face-to-face, and transcri...
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Background ISTS defect in which sperm tail is short and fibrous sheath and axoneme are disorganized, is one of the syndromes that cause male infertility. Although a few studies have been done in this regard, its exact etiology in human is unclear yet. Four candidate genes causing ISTS are SPEF2, RABL2B, and A-kinas anchoring proteins genes (AKAP3 and AKAP4). Proteins which coded by SPEF2 and RA...
متن کاملThe Tum protein of coliphage 186 is an antirepressor.
The tum gene of coliphage 186, encoded on a LexA controlled operon, is essential for UV induction of a 186 prophage. Primer extension analysis is used to confirm that Tum is the sole phage function required for prophage induction and that it acts against the maintenance repressor, CI, to relieve repression of the lytic promoters, pR and pB, and thereby bring about lytic development. In vitro ex...
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In portfolio theory, it is well-known that the distributions of stock returns often have non-Gaussian characteristics. Therefore, we need non-symmetric distributions for modeling and accurate analysis of actuarial data. For this purpose and optimal portfolio selection, we use the Tail Mean-Variance (TMV) model, which focuses on the rare risks but high losses and usually happens in the tail of r...
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ژورنال
عنوان ژورنال: Virology
سال: 1995
ISSN: 0042-6822
DOI: 10.1006/viro.1995.1471