[Changes in the content of ribosomal RNA and the activity of ribosomal RNAase in the brain under natural physiological conditions].
Optimal activity of RNAase from brain ribosomal fraction was observed at pH 5.4 and pH 7.9. After alimentary and conditioned-alimentary stimulation content of rRNA was significantly increased in brain, but the RNAase activity was decreased more than two-fold. After conditioned-alimentary inhibition content of rRNA was slightly decreased as compared to experiments with alimentary and conditioned-alimentary stimulation, but it was distinctly higher than in control. As compared with alimentary stimulation in the conditioned-alimentary stimulation the RNAase activity was increased at pH 5.4 and decreased at pH 7.9.
D000818:Animals; D001921:Brain / Q000201:enzymology / Q000378:metabolism*; D003214:Conditioning, Classical; D005502:Food; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D012335:RNA, Ribosomal / Q000378:metabolism*; D051381:Rats; D012260:Ribonucleases / Q000378:metabolism*; D012270:Ribosomes / Q000378:metabolism*
D012335:RNA, Ribosomal; D012260:Ribonucleases
Izmeneniia soderzhaniia ribosomnoĭ RNK i atkivnost' RNK-azy ribosom mozga pri estestvennykh fiziologicheskikh vozdeĭstviiakh