Comparative study of abiogenesis of cysteine and other amino acids catalyzed by various metal ions.
The present work pertains to the study of the influence of nickel, cobalt, thorium, vanadium, molybdate, ferrous ions on the formation of cysteine which is synthesized abiogenically together with other amino acids in sterilized aqueous mixtures of ammonium thiocyanate, formaldehyde, potassium dihydrogen phosphate, calcium acetate, and biological minerals after irradiating by artificial light. The effect of these catalysts on cysteine formation was of the order: Fe++ greater than Mo++ greater than Th++++ greater than V++ greater than Co++ greater than Ni.
D000085:Acetates; D000596:Amino Acids / Q000138:chemical synthesis*; D002384:Catalysis; D003035:Cobalt / Q000494:pharmacology; D003545:Cysteine / Q000138:chemical synthesis*; D005557:Formaldehyde; D007501:Iron / Q000494:pharmacology; D008027:Light; D008278:Magnesium Sulfate; D008670:Metals / Q000494:pharmacology*; D008982:Molybdenum / Q000494:pharmacology; D009532:Nickel / Q000494:pharmacology; D010710:Phosphates; D010788:Photosynthesis; D000644:Quaternary Ammonium Compounds; D013861:Thiocyanates; D013910:Thorium / Q000494:pharmacology; D014639:Vanadium / Q000494:pharmacology
D000085:Acetates; D000596:Amino Acids; D008670:Metals; D010710:Phosphates; D000644:Quaternary Ammonium Compounds; D013861:Thiocyanates; D014639:Vanadium; D005557:Formaldehyde; D003035:Cobalt; D013910:Thorium; D008278:Magnesium Sulfate; D009532:Nickel; D008982:Molybdenum; D007501:Iron; D003545:Cysteine