Results 331 to 340 of about 186,676 (349)

16S Mitochondrial Ribosomal RNA Degradation Is Associated with Apoptosis

Free Radical Biology and Medicine, 1997
The 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, Gary P. Schools, Yanhong Wang, Dana R. Crawford, Kelvin J.A. Davies, Kelvin J.A. Davies, Robert J. Lauzon   +6 more
openaire   +3 more sources

Scanning tunnelling microscopy of 16S ribosomal RNA in water

Biochemical and Biophysical Research Communications, 1991
The 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, Claire Cachia, Jean-Pierre Goudonnet, Jean-Pierre Schreiber, Eric Lesniewska   +4 more
openaire   +3 more sources

To Knot or Not to Knot? Examination of 16S Ribosomal RNA Models

Journal of Biomolecular Structure and Dynamics, 1998
The 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, Stephen C. Harvey, Brett A. Harris   +2 more
openaire   +3 more sources

Model for the three-dimensional folding of 16 S ribosomal RNA

Journal of Molecular Biology, 1988
We 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
openaire   +3 more sources

Complementary binding of oligonucleotides with 16S RNA and ribosomal ribonucleoproteins

Molecular Biology Reports, 1975
The 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, Nina V. Chichkova, Alexey A. Bogdanov, Alexey Kopylov   +3 more
openaire   +3 more sources

Images of 16S ribosomal RNA by scanning tunnelling microscopy

Journal of Microscopy, 1991
SUMMARYWe 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, Eric Lesniewska, Claire Cachia, T. David, Jean-Pierre Schreiber, Pierre-Jacques Flamion   +5 more
openaire   +3 more sources

Methylation of 16S RNA during ribosome assembly in vitro

Nature, 1974
Methyl deficient 16S RNA from kasugamycin resistant Escherichia coli has been used to study methylation of RNA during ribosome assembly in vitro. Methylation occurs at an intermediate stage and is inhibited at a late stage of assembly. 30S ribosomal proteins required for methylation, and inhibition, have been identified.
William A. Held, Pallaiah Thammana
openaire   +3 more sources

3 16 S Ribosomal RNA Oligonucleotide Cataloguing

1985
Publisher Summary This chapter discusses 16 S ribosomal ribonucleic acid (RNA) oligonucleotide cataloguing. 16 S ribosomal RNA is currently the subject of intense study. As a major component of the small ribosomal subunit, elucidation of 16 S rRNA secondary and tertiary structures is a key objective in the ongoing efforts to understand the structure ...
Wolfgang Ludwig, Erko Stackebrandt, George E. Fox   +2 more
openaire   +2 more sources

Structure of synthetic unmethylated 16S Ribosomal RNA as purified RNA and in reconstituted 30S ribosomal subunits

Biochemistry, 1989
16S ribosomal RNA was made by in vitro transcription of a cloned gene, and its structure was compared to authentic 16S ribosomal RNA. The comparison was made by subjecting the two types of 16S rRNA to chemical reagents that react specifically with unpaired bases and determining the extent of reaction by reverse transcription and gel electrophoresis of ...
Gwen Ericson, Paul Wollenzien, Kairev Chevli   +2 more
openaire   +3 more sources

Making and Sequencing Heavily Multiplexed, High-Throughput 16S Ribosomal RNA Gene Amplicon Libraries Using a Flexible, Two-Stage PCR Protocol.

Methods in molecular biology, 2018
A. Naqib, Silvana Poggi, Weihua Wang, Marieta Hyde, K. Kunstman, S. Green   +5 more
semanticscholar   +1 more source