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Volumn 131, Issue 3, 2009, Pages 1135-1143

Probing general acid catalysis in the hammerhead ribozyme

Author keywords

[No Author keywords available]

Indexed keywords

ACTIVE SITE; BASE CATALYST; CATALYTIC MECHANISMS; CATALYTIC ROLE; COFACTOR; COMPUTATIONAL STUDIES; DIVALENT METAL CATIONS; FUNCTIONAL CHARACTERIZATION; GENERAL ACID CATALYSIS; LEAVING GROUPS; LEWIS ACID; NATURAL SUBSTRATES; PHOSPHODIESTER; PHOSPHOROTHIOATE; RIBOZYME; SIMPLE METHOD; TRANSITION STATE;

EID: 61749098364     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja807790e     Document Type: Article
Times cited : (41)

References (61)
  • 5
    • 15544362876 scopus 로고    scopus 로고
    • In particular, the work of Burke and coworkers should be noted as a clear illustration of the discrepancy between the results of functional experiments and minimal hammerhead crystal structures. Their findings correctly predicted the proximity of several ribozyme residues to the substrate cleavage site, as observed later in the S. mansoni crystal structure. See: (a) Heckman, J. E.; Lambert, D.; Burke, J. M. Biochemistry 2005, 44, 4148-4156.
    • In particular, the work of Burke and coworkers should be noted as a clear illustration of the discrepancy between the results of functional experiments and minimal hammerhead crystal structures. Their findings correctly predicted the proximity of several ribozyme residues to the substrate cleavage site, as observed later in the S. mansoni crystal structure. See: (a) Heckman, J. E.; Lambert, D.; Burke, J. M. Biochemistry 2005, 44, 4148-4156.
  • 36
    • 0027949817 scopus 로고    scopus 로고
    • An analogous experiment, which substituted a low pK a nitrophenolate leaving group in place of the native alkoxide, has been reported to confirm that His119 performs general acid catalysis in RNaseA catalysis of RNA cleavage. See: Thompson, J. E, Raines, R. T. J. Am. Chem. Soc. 1994, 116, 5467-5468
    • a nitrophenolate leaving group in place of the native alkoxide, has been reported to confirm that His119 performs general acid catalysis in RNaseA catalysis of RNA cleavage. See: Thompson, J. E.; Raines, R. T. J. Am. Chem. Soc. 1994, 116, 5467-5468.
  • 50
    • 67849119715 scopus 로고    scopus 로고
    • Biphasic cleavage kinetics were more apparent in the case of the S-link substrate. See Figures S3 and S4 in the Supporting Information for further explanation.
    • Biphasic cleavage kinetics were more apparent in the case of the S-link substrate. See Figures S3 and S4 in the Supporting Information for further explanation.
  • 60
    • 24644454458 scopus 로고    scopus 로고
    • a downward for O-link substrate cleavage by the HDV ribozyme. See: Das, S. R.; Piccirilli, J. A. Nat. Chem. Biol. 2005, 1, 45-52.
    • a downward for O-link substrate cleavage by the HDV ribozyme. See: Das, S. R.; Piccirilli, J. A. Nat. Chem. Biol. 2005, 1, 45-52.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.