scholarly journals Studies on the Origin of a Low Molecular Weight Ribonucleic Acid from Human Cells Infected with Adenoviruses

1969 ◽  
Vol 244 (19) ◽  
pp. 5320-5332 ◽  
Author(s):  
Keiji Ohe ◽  
Sherman M. Weissman ◽  
N. Roger Cooke
Keyword(s):  
Molecular Weight ◽  
Ribonucleic Acid ◽  
Human Cells ◽  
Low Molecular Weight

scholarly journals Decline in ribonucleic acid and protein synthesis with loss of viability during the early hours of imbibition of rye (Secale cereale L.) embryos

1977 ◽  
Vol 166 (1) ◽  
pp. 33-38 ◽  
Author(s):  
S Sen ◽  
D J Osborne
Keyword(s):  
Molecular Weight ◽  
Protein Synthesis ◽  
Secale Cereale ◽  
Ribonucleic Acid ◽  
Major Part ◽  
Low Molecular Weight ◽  
Nucleolar Material ◽  
Early Germination ◽  
Secale Cereale L

A decline in protein synthesis and slow germination accompanies loss of viability in embryos of rye (Secale cereale L.) grains. Associated with this, incorporation of precursors into all the major classes of RNA is decreased and the processing of precursor rRNA to 25S and 18S RNA is retarded. Embryos that just reach 0% viability still synthesize some low-molecular-weight non-nucleolar material, although they do not synthesize protein. It is suggested that early-synthesized RNA could play a major part in determining the extent of protein synthesis at early germination, and thereby regulate the rate at which germination can proceed.

scholarly journals The postnatal methylation of transfer ribonucleic acid in brain. Evidence for the methylation of precursor transfer ribonucleic acid

1979 ◽  
Vol 177 (1) ◽  
pp. 381-384 ◽  
Author(s):  
E Elahi ◽  
O Z Sellinger
Keyword(s):  
Molecular Weight ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Rat Brain ◽  
Ribonucleic Acid ◽  
High Performance ◽  
Low Molecular Weight ◽  
Polyacrylamide Gels ◽  
Cytoplasmic Rna ◽  
Rapid Labeling

Incubation of 3-day-old rat brain with L-[methyl-3H]methionine resulted in the rapid labeling of low-molecular-weight cytoplasmic RNA. Electrophoresis in 15% polyacrylamide gels provided evidence for the methylation of precursor tRNA molecules, and high-performance liquid chromatography demonstrated N2-methylguanine to be the predominant methylated base formed during the first 2 min of labelling.

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