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Volumn 13, Issue 8, 2007, Pages 2246-2256

Mimicking enzymes: Cooperation between organic functional groups and metal ions in the cleavage of phosphate diesters

Author keywords

Artificial nucleases; Catalysis; Hydrogen bonds; Hydrolysis; Phosphate diesters

Indexed keywords

CATALYSIS; ESTERS; FUNCTIONAL GROUPS; HYDROGEN BONDS; HYDROLYSIS; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; NUCLEOPHILES;

EID: 34250630803     PISSN: 09476539     EISSN: 15213765     Source Type: Journal    
DOI: 10.1002/chem.200600672     Document Type: Article
Times cited : (91)

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    • The same system produces a rate acceleration for the hydrolysis of a cyclic phosphate diester (2′,3′-cAMP) of four orders of magnitude: M. Wall, B. Linkletter, D. Williams, A. M. Lebuis, R. C. Hynes, J. Chin, J. Am. Chem. Soc. 1999, 121, 4710-4711.
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    • The same authors obtained an increase in the rate of HPNP transesterification by two orders of magnitude by using the ZnII complex of bis(6-amino-2-pyridinylmethyl)-2-ethanolamine, which features two hydrogen-bond-donating groups: G. Feng, J. C. Mareque-Rivas, N. H. Williams, Chem. Commun. 2006, 1845-1847
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    • -1 in the case of the alkoxide one (Figure 3C); such values support the assumption of explicitly including an additional solvent molecule.
    • -1 in the case of the alkoxide one (Figure 3C); such values support the assumption of explicitly including an additional solvent molecule.
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    • Lower-level calculations (B3LYP/6-31G*) indicate that similar structures represent energy minima also in the case of the non-deprotonated complex.
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    • Very similar results were obtained for the HPNP transesterification by using the closely related ZnII complex of bis(6-amino-2- pyridinylmethyl)-2-ethanolamine: see ref, 12
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    • Under these conditions, the dependence of the rate from the complex concentration is second-order
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.