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Template-directed synthesis of oligoadenylates catalyzed by Pb2+ ions (1979)

Sleeper, H. L. ; Lohrmann, R. ; Orgel, L. E.

Springer

Journal of molecular evolution 13 (1979), S. 203-214

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ISSN: 1432-1432

Keywords: Adenosine 5′-phosphorimidazolide ; Oligoadenylates ; Poly(U)-directed condensation ; Pb2+ ion catalysis ; Isomer ratios ; Prebiotic

Source: Springer Online Journal Archives 1860-2000

Topics: Biology

Notes: Summary The Pb2+ ion is an effective catalyst for the template-directed condensation of ImpA on poly(U). This reaction generates up to 35% of oligomers 5 or more units long. Furthermore, the product is predominantly 3′–5′-linked (75%) unlike that from the uncatalyzed reaction which is more than 90% 2′–5′-linked. The significance of metal-ion catalysis for prebiotic polynucleotide formation is discussed.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01739480

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