title: Partial purification of ribosomal RNA(m1G)- and rRNA(m2G)-methylases from Escherichia coli and demonstration of some proteins affecting their apparent activity.
mesh_terms: D000645:Ammonium Sulfate; D001426:Bacterial Proteins; D002247:Carbon Isotopes; D011232:Chemical Precipitation; D002729:Chloromercuribenzoates; D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D004789:Enzyme Activation; D004926:Escherichia coli / Q000201:enzymology*; D005827:Genetics, Microbial; D006150:Guanine Nucleotides; D007700:Kinetics; D008780:Methyltransferases / Q000037:antagonists & inhibitors / Q000302:isolation & purification; D009154:Mutation; D010206:Papain; D012335:RNA, Ribosomal; D012260:Ribonucleases; D012436:S-Adenosylmethionine; D014357:Trypsin; D014461:Ultracentrifugation
chemical_list: D001426:Bacterial Proteins; D002247:Carbon Isotopes; D002729:Chloromercuribenzoates; D006150:Guanine Nucleotides; D012335:RNA, Ribosomal; D012436:S-Adenosylmethionine; D008780:Methyltransferases; D012260:Ribonucleases; D014357:Trypsin; D010206:Papain; D000645:Ammonium Sulfate