Hydrophobic and electronic factors in the design of dialkylglycine decarboxylase mimics
摘要:
The first functional catalytic mimic of the enzyme dialkylglycine decarboxylase is described. This system utilizes a hydrophobically modified polyethylenimine polymer, a pyridoxamine cofactor, and a 2-aryl-2-alkylglycine sacrificial amine source to convert alpha-keto acids to alpha-amino acids at biologically relevant temperatures with multiple turnovers of the pyridoxamine catalyst. The effects of hydrophobic and electronic factors in the 2,2-disubstituted sacrificial amine source and the pyridoxamine catalyst on turnover frequency and turnover number are explored. (c) 2005 Elsevier Ltd. All rights reserved.
Hydrophobic and electronic factors in the design of dialkylglycine decarboxylase mimics
摘要:
The first functional catalytic mimic of the enzyme dialkylglycine decarboxylase is described. This system utilizes a hydrophobically modified polyethylenimine polymer, a pyridoxamine cofactor, and a 2-aryl-2-alkylglycine sacrificial amine source to convert alpha-keto acids to alpha-amino acids at biologically relevant temperatures with multiple turnovers of the pyridoxamine catalyst. The effects of hydrophobic and electronic factors in the 2,2-disubstituted sacrificial amine source and the pyridoxamine catalyst on turnover frequency and turnover number are explored. (c) 2005 Elsevier Ltd. All rights reserved.
PROCÉDÉ DE DÉTECTION ET/OU D'IDENTIFICATION DE CLOSTRIDIUM DIFFICILE
申请人:Biomérieux
公开号:EP2235202A2
公开(公告)日:2010-10-06
METHOD FOR DETECTING AND/OR IDENTIFYING CLOSTRIDIUM DIFFICILE
申请人:Asir Kerry
公开号:US20100279330A1
公开(公告)日:2010-11-04
The invention relates to a method for detecting and/or identifying
Clostridium difficile
, characterized in that it comprises the following steps:
a) providing a reaction medium comprising at least one beta-glucosidase substrate capable of identifying
C. difficile,
b) inoculating the medium with a biological sample to be tested,
c) allowing for incubation, and
d) detecting the hydrolysis of the beta-glucosidase substrate, indicative of the presence of
Clostridium difficile.
The invention also relates to a reaction medium for the detection and/or the identification of
Clostridium difficile
, that comprises at least one beta-glucosidase substrate capable of identifying
C. difficile.
US8404460B2
申请人:——
公开号:US8404460B2
公开(公告)日:2013-03-26
[EN] METHOD FOR DETECTING AND/OR IDENTIFYING CLOSTRIDIUM DIFFICILE<br/>[FR] PROCÉDÉ DE DÉTECTION ET/OU D'IDENTIFICATION DE CLOSTRIDIUM DIFFICILE
申请人:BIOMERIEUX SA
公开号:WO2009092982A2
公开(公告)日:2009-07-30
L'invention concerne un procédé de détection et/ou d'identification de Clostridium difficile, caractérisé en ce qu'il comprend les étapes suivantes : a) disposer d'un milieu réactionnel comprenant au moins un substrat de beta-glucosidase, apte à l'identification de C. difficile, b) ensemencer le milieu avec un échantillon biologique à tester, c) laisser incuber, et d) détecter l'hydrolyse du substrat de beta-glucosidase indiquant la présence de Clostridium difficile. L'invention concerne également un milieu réactionnel pour la détection et/ou l'identification de Clostridium difficile comprenant au moins un substrat de beta- glucosidase, apte à l'identification de C. difficile.