Sequence and uptake specificity of cloned sonicated fragments of Haemophilus influenzae DNA
نویسندگان
چکیده
منابع مشابه
Uptake of heterologous DNA by Haemophilus influenzae.
With the use of highly competent Haemophilus influenzae cells, it was possible to demonstrate the uptake of heterologous DNAs. However, these DNAs, as expected, were only 1% or less as effective when competing for uptake with Haemophilus DNA. Escherichia coli DNA was removed from solution by competent cells to the extent expected if all the E. coli DNA particles contained at least one uptake re...
متن کاملDefining the DNA uptake specificity of naturally competent Haemophilus influenzae cells
Some naturally competent bacteria exhibit both a strong preference for DNA fragments containing specific 'uptake sequences' and dramatic overrepresentation of these sequences in their genomes. Uptake sequences are often assumed to directly reflect the specificity of the DNA uptake machinery, but the actual specificity has not been well characterized for any bacterium. We produced a detailed ana...
متن کاملImmunogenicity and Efficacy of Different Haemophilus influenzae type b Vaccines
Haemophilus influenzae, a major cause of meningitis in young children leading to death and other neurological sequelae. The disease leaves 15 to 35% of the survivors with permanent disabilities, such as, mental retardation or deafness. Despite the availability of new and more powerful antibiotics children with Hib meningitis still suffer from high mortality or morbidity. The emergence of multir...
متن کاملHaemophilus Influenzae B
یکی از شایع ترین مننژیت باکتریایی در شیرخواران، هموفیلوس آنفلوانزا از نوع B (HIB) می باشد. به منظور تهیه و عرضه واکسنی جهت حفظ کودکان در مقابل این بیماری به بازار جهانی، تحقیقاتی انجام و نوعی واکسن در بخش تحقیقاتی آکسفورد مورد آزمایش و ارزیابی قرار گرفت تا در صورت تمایل والدین و کارکنان بهداشتی، تجویز همزمان آن با واکسن سه گانه و فلج اطفال عملی گردد.
متن کاملSimple sequence repeats in Haemophilus influenzae
Simple sequence repeat (SSRs) of DNA are subject to high rates of mutation and are important mediators of adaptation in Haemophilus influenzae. Previous studies of the Rd KW20 genome identified the primacy of tetranucleotide SSRs in mediating phase variation (the rapid reversible switching of gene expression) of surface exposed structures such as lipopolysaccharide. The recent sequencing of the...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1990
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.172.10.5924-5928.1990