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Volumn 121, Issue 51, 1999, Pages 12054-12062

Proton transfer from the C5-proR/proS positions of L-dihydroorotate: General-base catalysis, isotope effects, and internal return

Author keywords

[No Author keywords available]

Indexed keywords

DIHYDROOROTATE DEHYDROGENASE;

EID: 0033616090     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja992753v     Document Type: Article
Times cited : (20)

References (97)
  • 3
    • 0342562643 scopus 로고    scopus 로고
    • note
    • a = 0 is the proton-transfer step even partly rate determining (refs 22, 34a). (b) The reader is referred to refs 40, 41, and 46 for a discussion of the relative contributions from enthalpy and entropy to transition-state complexity.
  • 6
    • 0343432516 scopus 로고    scopus 로고
    • note
    • The intrinsic barrier is the kinetic barrier when there is no thermodynamic driving force for a reaction.
  • 34
    • 85022863031 scopus 로고
    • Caldin, E., Gold, V., Eds.; Chapman and Hall: London
    • (c) Grunwald, E.; Eustace, D. In Proton-Transfer Reactions; Caldin, E., Gold, V., Eds.; Chapman and Hall: London, 1975; pp 285-294.
    • (1975) Proton-Transfer Reactions , pp. 285-294
    • Grunwald, E.1    Eustace, D.2
  • 38
    • 0038412835 scopus 로고
    • Bamford, C. H., Tipper, C. F. H., Eds.; Elsevier: Amsterdam
    • Hibbert, F. In Comprehensive Chemical Kinetics; Bamford, C. H., Tipper, C. F. H., Eds.; Elsevier: Amsterdam, 1977; Vol. 8, pp 97-196.
    • (1977) Comprehensive Chemical Kinetics , vol.8 , pp. 97-196
    • Hibbert, F.1
  • 40
    • 0343836734 scopus 로고    scopus 로고
    • note
    • -1 for 1 was measured similarly.
  • 47
    • 84944001577 scopus 로고
    • 2O for the catalytic base is expected to result in a small increase in the extent of internal return. However, this solvent isotope effect is similar to the experimental error in the values (ref 18).
    • (1982) Phys. Chem., Neue Folge , vol.132 , pp. 129-149
    • Weingärtner, H.Z.1
  • 48
    • 0343836729 scopus 로고
    • High precision for measured rate constants is required to obtain useful information about relative free energies of two transition states when both are partially rate-limiting (Albery, W. J.; Knowles, J. R. J. Am. Chem. Soc. 1977, 99, 637-638).
    • (1977) J. Am. Chem. Soc. , vol.99 , pp. 637-638
    • Albery, W.J.1    Knowles, J.R.2
  • 70
    • 0342965762 scopus 로고
    • Buncel, E., Lee, C. C., Eds.; Elsevier: Amsterdam
    • (d) Lamatz, G. In Isotope Effects in Organic Chemistry; Buncel, E., Lee, C. C., Eds.; Elsevier: Amsterdam, 1976; Vol. 2, p 71.
    • (1976) Isotope Effects in Organic Chemistry , vol.2 , pp. 71
    • Lamatz, G.1
  • 74
    • 0343836718 scopus 로고    scopus 로고
    • note
    • BD.
  • 84
    • 0342965760 scopus 로고    scopus 로고
    • note
    • a = 7 for a catalytic base at the active site.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.