title: Reactivation of streptolysin S by oligonucleotide.
abstract: Oligonucleotide-streptolysin S complex inactivated by alkali treatment remains nonhemolytic, even after acidification and mixing with intact carrier oligonucleotide rich in guanyl residue. Upon dehydration, however, the inactive streptolysin S-oligonucleotide mixture turned to be hemolytic, and this reactivation of the hemolysin was promoted by treatment with guanidine hydrochloride. After alkaline hydrolysis, streptolysin S was freed from nucleotide moiety, by gel filtration through a Sephadex G-50 column. From this nonhemolytic apotoxin as well, active streptolysin S complex was reconstructed upon dehydration with the carrier.
mesh_terms: D001426:Bacterial Proteins; D019791:Guanidine; D006146:Guanidines; D006863:Hydrogen-Ion Concentration; D009841:Oligonucleotides; D012259:Ribonuclease, Pancreatic / Q000378:metabolism; D013301:Streptolysins
chemical_list: D001426:Bacterial Proteins; D006146:Guanidines; D009841:Oligonucleotides; D013301:Streptolysins; C026050:streptolysin S; D012259:Ribonuclease, Pancreatic; D019791:Guanidine