Substrates for β-lactamase and uses thereof

Details Substrates for β-lactamase and uses thereof Substrates for β-lactamase and uses thereof

2007-01-02

2007-01-02

Peselev, Elli (Department: 1623)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C540S205000

Reexamination Certificate

active

10280482

ABSTRACT:
Substrates for β-lactamase of the general formula Iin which one of X and Y is a fluorescent donor moiety and the other is a quencher (which may or may not re-emit); R′ is selected from the group consisting of H, lower (i.e., alkyl of 1 to about 5 carbon atoms) and (CH2)nOH, in which n is 0 or an integer from 1 to 5; R″ is selected from the group consisting of H, physiologically acceptable metal and ammonium cations, —CHR2OCO(CH2)nCH3, —CHR2OCOC(CH3)3, acylthiomethyl, acyloxy-alpha-benzyl, delta-butyrolactonyl, methoxycarbonyloxymethyl, phenyl, methylsulphinylmethyl, beta-morpholinoethyl, dialkylaminoethyl, acyloxyalkyl, dialkylaminocarbonyloxymethyl and aliphatic, in which R2is selected from the group consisting of H and lower alkyl; A is selected from the group consisting of S, O, SO, SO2and CH2; and Z′ and Z″ are linkers for the fluorescent donor and quencher moieties. Methods of assaying β-lactamase activity and monitoring expression in systems using β-lactamase as a reporter gene also are disclosed.

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