16S rRNA, 18S rRNA, 70S and 80S Ribosomes: What Does the “S” Stand For?
نویسندگان
چکیده
منابع مشابه
Probing the conformational changes in 5.8S, 18S and 28S rRNA upon association of derived subunits into complete 80S ribosomes.
The participation of 18S, 5.8S and 28S ribosomal RNA in subunit association was investigated by chemical modification and primer extension. Derived 40S and 60S ribosomal subunits isolated from mouse Ehrlich ascites cells were reassociated into 80S particles. These ribosomes were treated with dimethyl sulphate and 1-cyclohexyl-3-(morpholinoethyl) carbodiimide metho-p-toluene sulfonate to allow s...
متن کاملSedimentation coefficients of RNA from 70S and 80S ribosomes.
It has been shown' previously that the corrected sedimentation coefficients (820 W) of the ribosomes from 25 species of fungi and 25 species of bacteria, respectively, range from 76.5 to 84.5 Svedberg units (S) and from 63.8 to 72.1S, and that the difference between the arithmetic means, 81.3 and 68.4S, of these two frequency distributions is significant. Since the ribosomes from other eucaryot...
متن کاملfrom 18S rRNA Sequences
Several families in the beetle suborder Adephaga have an aquatic life style and are commonly grouped in the “Hydradephaga,” but their monophyly is contentious and relationships between and within these families are poorly understood. Here we present fulllength 18S rRNA sequence for 84 species of Hydradephaga, including representatives of most major groups down to the tribal level, and a total o...
متن کاملDetection of fungal 18S rRNA sequences in conjunction with marine nematode 18S rRNA amplicons
Free-living nematodes constitute an important component of estuarine and marine benthic ecosystems. Some marine and soil nematodes are known to harbor microbes, including symbiotic bacteria and fungi, in their external cuticle as well as internally. While assessing diversity of marine nematodes from southwest England using molecular approaches, we found evidence of coamplification of fungal 18S...
متن کاملConserved bacterial RNase YbeY plays key roles in 70S ribosome quality control and 16S rRNA maturation.
Quality control of ribosomes is critical for cellular function since protein mistranslation leads to severe physiological consequences. We report evidence of a previously unrecognized ribosome quality control system in bacteria that operates at the level of 70S to remove defective ribosomes. YbeY, a previously unidentified endoribonuclease, and the exonuclease RNase R act together by a process ...
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ژورنال
عنوان ژورنال: Microbe Magazine
سال: 2015
ISSN: 1558-7452,1558-7460
DOI: 10.1128/microbe.11.450.1