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  • 1
    ISSN: 1530-0358
    Keywords: Lynch syndrome II ; Cancer of the bile duct ; Urologic system ; Colon ; Endometrium ; Ovary
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract There are no premonitory physical signs or biomarkers which can identify the genotypic status in Lynch syndrome II. Diagnosis is therefore dependent on the pedigree, with attention to cancer of all anatomic sites, inclusive of those cardinal features of its natural history. The tumor spectrum in Lynch syndrome II has continued to expand commensurately with increasing interest in this disorder. We report a family showing the constant cancer features of this syndrome but, in addition, occurrences of carcinoma of the bile duct, urologic system, and extremely early-onset carcinoma of the pancreas, in patients in the direct genetic lineage who were considered to be candidates for having inherited the deleterious genotype. Diagnosis of Lynch syndrome II is crucial in targeting its surveillance and management.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Molecular genetics and genomics 209 (1987), S. 154-158 
    ISSN: 1617-4623
    Keywords: Recombination ; Plasmid ; Streptomyces ; Escherichia coli
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary An Escherichia coli-Streptomyces shuttle plasmid pIF132 containing two direct mel repeats was constructed. While pIF132 replicated relatively stably in E. coli (Rec+ or recA), its structure was unstable in S. lividans: recombination between the mel repeats resulted in a smaller plasmid, pIF138. Furthermore, pIF132 formed oligomers extensively in E. coli but not in S. lividans.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Molecular genetics and genomics 208 (1987), S. 211-218 
    ISSN: 1617-4623
    Keywords: Recombination ; Mutants ; Plasmid ; Streptomyces
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Plasmid pIF132 containing two direct repeats of the mel (melanin) sequence was used to monitor intraplasmid recombination. Five mutants of Streptomyces lividans TK64 deficient in intraplasmid recombination were isolated. Four contained additional defects in aerial mycelium formation, pigmentation, and nutrient requirements; among these two showed extensive amplification of chromosomal sequences. Mutant JT46 had no pleiotropic defects but had the most severe blockage in recombination. Only one of the mutants was slightly more sensitive to UV and two were slightly more sensitive to mitomycin C. Plasmid pWCL1 (containing pIJ702, pUC12, and HBVsAg sequences; Lee et al. 1986) could not stably replicate in TK64 without spontaneous deletions. In contrast the mutant JT46 maintained the integrity of pWCL1 much more stably.
    Type of Medium: Electronic Resource
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