SELECTIVE FORMATION OF PARTICLES BY BINDING OF PYRIMIDINE POLYRIBONUCLEOTIDES OR PURING POLYRIBONUCLEOTIDES WITH LYSINE-RICH OR ARGININE-RICH PROTEINOIDS

Thermally prepared arginine-rich (lysine-free) or lysine-rich (arginine-free) proteinoids show specific reactions with enzymically synthesized homopolynucleotides, as judged by formation of spherules under standard conditions. When arginine is omitted, the proteinoid reacts with pyrimidine polynucleotides; when lysine is omitted, the polymer reacts more readily with purine polynucleotides. With polyadenylic acid, but not with polycytidylic acid, the reactions of various lysine-rich proteinoids teinoids show different concentration dependencies. © 1969.