Results 291 to 300 of about 134,692 (313)
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Conservation of primary structure in 16S ribosomal RNA
Nature, 1975THERE is no doubt that the large ribosomal RNAs play specific roles in ribosome function1. Yet the thrust of experimentation during the past 5 years indicates clearly that the biologist tends to view these roles as structural, function being reserved by and large for the ribosomal protein components2,3.
L. Bonen +8 more
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Comparative Anatomy of 16-S-like Ribosomal RNA
1985Publisher Summary This chapter examines the range of the variation of secondary structure among the 16-S-like rRNAs. This brings into a larger structural context a recent detailed analysis of the individual helical elements and provides a basis for an accurate alignment of the corresponding regions of different primary structures.
Harry F. Noller +3 more
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Chromosomal loci for 16S ribosomal RNA in Escherichia coli
Molecular and General Genetics MGG, 1972Genetic loci for 16S ribosomal RNA (rRNA) on the Escherichia coli chromosome were determined using the K-sequence, a characteristic oligonucleotide of strain K12, as a genetic marker. Oligonucleotide analyses of 16S rRNA from various recombinants between strain K12 and strain B(H) showed that the loci for 16S rRNA containing the K-sequence were near ...
M. Matsubara +2 more
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[11] 16 S ribosomal RNA cataloging
1988Publisher Summary This chapter discusses 16 S ribosomal RNA cataloging. Phylogenetic studies on cyanobacteria and chloroplasts using the 16 S ribosomal RNA (rRNA) cataloging approach as a tool have been done by two different methods: the traditional one which is generally not used anymore and the advanced technique which is presented in detail in ...
Wolfgang Ludwig, Erko Stackebrandt
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16S Mitochondrial Ribosomal RNA Degradation Is Associated with Apoptosis
Free Radical Biology and Medicine, 1997The use of mitochondrial RNA as an indicator of apoptosis was investigated. Exposure of HA-1 fibroblastic cells to 10 micromol H(2)O(2) per 10(7) cells induced nuclear fragmentation, cell shrinkage, and internucleosomal DNA fragmentation, all characteristics of apoptosis.
Joseph E. Mazurkiewicz +6 more
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Scanning tunnelling microscopy of 16S ribosomal RNA in water
Biochemical and Biophysical Research Communications, 1991The scanning tunnelling microscope has been used to image 16S ribosomal RNA molecules in water electrophoretically deposited on graphite surface. Two kinds of images have been obtained: images showing aggregates of 16S ribosomal RNA molecules similar to those obtained from DNA solutions and others showing individual 16S ribosomal RNA molecules.
Pierre-Jacques Flamion +4 more
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To Knot or Not to Knot? Examination of 16S Ribosomal RNA Models
Journal of Biomolecular Structure and Dynamics, 1998The presence of topological knots in large RNA structures is highly unlikely given that 1) no RNA structures determined thus far contain topological knots, 2) secondary structure maps for most RNA molecules are knot free, 3) there are no known RNA topoisomerases, and 4) it is difficult to imagine how knots could be formed specifically and uniquely ...
Margaret S. VanLoock +2 more
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Model for the three-dimensional folding of 16 S ribosomal RNA
Journal of Molecular Biology, 1988We have derived a model for the three-dimensional folding of Escherichia coli 16 S ribosomal RNA, using interactive computer graphic methods. It is based on (1) the secondary structure derived from comparative sequence analysis, (2) the three-dimensional co-ordinates for the centers of mass of the 30 S subunit proteins, and (3) the locations of sites ...
Seth Stern, Harry F. Noller, Bryn Weiser
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Complementary binding of oligonucleotides with 16S RNA and ribosomal ribonucleoproteins
Molecular Biology Reports, 1975The accessibility of single-stranded sequences in 16S RNA in free state and in ribonucleoprotein particles (RNP) to complementary binding with isoplith fractions of oligonucleotides was studied. RNP had different protein composition and corresponded to intermediate stages of E. coli 30S subunit assembly in vitro.
S. K. Vasilenko +3 more
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Images of 16S ribosomal RNA by scanning tunnelling microscopy
Journal of Microscopy, 1991SUMMARYWe report the use of scanning tunnelling microscopy (STM) to study surface topographies of complex nucleic acid structures. From low‐resolution STM images of uncoated 16S ribosomal RNA, we demonstrate the possibility of determining several objective parameters (molecular mass and radius of gyration) in order to characterize and identify the ...
Jean-Pierre Goudonnet +5 more
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