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Volumn 48, Issue 41, 2009, Pages 7691-7694

Structure-guided directed evolution of alkenyl and arylmalonate decarboxylases

Author keywords

Decarboxylase; Directed evolution; Enedlolates; Enzyme mechanisms; Inhibitors

Indexed keywords

DECARBOXYLASE; DIRECTED EVOLUTION; ENEDLOLATES; ENZYME MECHANISMS; INHIBITORS;

EID: 70349998462     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200904112     Document Type: Article
Times cited : (62)

References (32)
  • 14
    • 40049110590 scopus 로고    scopus 로고
    • Another B. bronchiseptica AMDase structure was also reported at around the same time: This structure is proposed to possess four independent subunits and differs considerably from our structure. Attempts to align the two structures proved problematic. Also, there is no ligand bound to any of the subunits, in the structure from Kuettner et al., and none of the key active-site residues, apart from Cys188 are identified. Moreover, the Cysl88 residue had been modified by mercaptoethanol, presumably an artefact of the crystallisation process employed by Kuettner et al. From our work, the conditions of crystallisation were shown to be very important. The use of mercaptoethanol, in addition to modifying Cysl88 which would completely abolish the ability of this residue to function as a general acid, may also have effected the internal stabilisation of the protein leading to the four misfolded subunits. As a result, no reasonable structural or mechanistic conclusions can be drawn from this
    • Another B. bronchiseptica AMDase structure was also reported at around the same time: E. B. Kuettner, A. Keim, M. Kircher, S. Rosmus, N. Sträter, J. Mol. Biol. 2008, 377, 386-394. This structure is proposed to possess four independent subunits and differs considerably from our structure. Attempts to align the two structures proved problematic. Also, there is no ligand bound to any of the subunits, in the structure from Kuettner et al., and none of the key active-site residues, apart from Cys188 are identified. Moreover, the Cysl88 residue had been modified by mercaptoethanol, presumably an artefact of the crystallisation process employed by Kuettner et al. From our work, the conditions of crystallisation were shown to be very important. The use of mercaptoethanol, in addition to modifying Cysl88 which would completely abolish the ability of this residue to function as a general acid, may also have effected the internal stabilisation of the protein leading to the four misfolded subunits. As a result, no reasonable structural or mechanistic conclusions can be drawn from this.
    • (2008) J. Mol. Biol. , vol.377 , pp. 386-394
    • Kuettner, E.B.1    Keim, A.2    Kircher, M.3    Rosmus, S.4    Sträter, N.5
  • 24
    • 33845288649 scopus 로고    scopus 로고
    • Angew. Chem. Int. Ed. 2006, 45, 7745-7751;
    • (2006) Angew. Chem. Int. Ed. , vol.45 , pp. 7745-7751
  • 32
    • 70349998990 scopus 로고    scopus 로고
    • The atomic coordinates for B. bronchiseptica AMDase with benzylphosphonate bound to the active site dioxyanion hole has been deposited in the Protein Data Bank (accession number 3IP8)
    • The atomic coordinates for B. bronchiseptica AMDase with benzylphosphonate bound to the active site dioxyanion hole has been deposited in the Protein Data Bank (accession number 3IP8).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.