Synthesis of 2',5'-oligoadenylate by rat liver nuclear matrix protein.
Nuclear matrix was prepared from unstimulated rat liver by treatment of nuclei with DNAse and 0.4 M NaCl and was further extracted with 2.0 M NaCl. Proteins were bound to poly(rI):(rC)-agarose, incubated with (alpha-32P) adenosine 5'-triphosphate and 2',5'-linked oligoadenylate was isolated from the supernatant. The substance inhibited amino acid incorporation in a reticulocyte translation system and was identified after enzymatic treatment followed by thin-layer chromatography on PEI-cellulose. The possible function of 2',5'-oligo(A) synthetase in the maturation of pre-mRNA associated with nuclear matrix is discussed.
D000227:Adenine Nucleotides / Q000096:biosynthesis*; D000818:Animals; D002467:Cell Nucleus / Q000378:metabolism; D004591:Electrophoresis, Polyacrylamide Gel; D066298:In Vitro Techniques; D008099:Liver / Q000201:enzymology / Q000378:metabolism*; D009841:Oligonucleotides / Q000096:biosynthesis*; D009843:Oligoribonucleotides / Q000096:biosynthesis*; D051381:Rats
D000227:Adenine Nucleotides; D009841:Oligonucleotides; D009843:Oligoribonucleotides; C023505:2',5'-oligoadenylate