Fluorogenic substrates for BETA-lactamase gene expression
Abstract
Fluorescent substrates for beta-lactamases having the general formula shown above are provided. Z includes a fluorophore or chromophore and includes a group that may link to the lactam-containing group; R1 and R2 are independently selected from H, aliphatic, aromatic, alkyl, and acyl; R4 may be H and lower alkyl; B may be H, physiologically acceptable salts or metal, ester groups, ammonium cations, —CHR5OCO(CH2)nCH3, —CHR5OCOC(CH3)3, acylthiomethyl, acyloxy-alpha-benz, deltabutyrolactonyl, methoxycarbonyloxymethyl, phenyl, methylsulphinylmethyl, beta-morpholinoethyl, dialkylaminoethyl, and dialkylaminocarbonyloxymethyl, in which R5 is selected from the group consisting of H and lower alkyl; n is an integer between 0 and 10, inclusive; and A may be S, O, SO, SO2 or CH2. In embodiments, the beta-lactam ring may be cleaved by a beta-lactamase enzyme effective to free a fluorophore. Methods of assaying beta-lactamase activity and monitoring expression in systems using beta-lactamase as a reporter gene are also disclosed.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of California, Oakland, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1531564
- Patent Number(s):
- 7427680
- Application Number:
- 10/884,019
- Assignee:
- The Regents of the University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07D - HETEROCYCLIC COMPOUNDS
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07F - ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- DOE Contract Number:
- FG03-01ER63276
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2004-07-02
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Tsien, Roger Y., and Rao, Jianghong. Fluorogenic substrates for BETA-lactamase gene expression. United States: N. p., 2008.
Web.
Tsien, Roger Y., & Rao, Jianghong. Fluorogenic substrates for BETA-lactamase gene expression. United States.
Tsien, Roger Y., and Rao, Jianghong. Tue .
"Fluorogenic substrates for BETA-lactamase gene expression". United States. https://www.osti.gov/servlets/purl/1531564.
@article{osti_1531564,
title = {Fluorogenic substrates for BETA-lactamase gene expression},
author = {Tsien, Roger Y. and Rao, Jianghong},
abstractNote = {Fluorescent substrates for beta-lactamases having the general formula shown above are provided. Z includes a fluorophore or chromophore and includes a group that may link to the lactam-containing group; R1 and R2 are independently selected from H, aliphatic, aromatic, alkyl, and acyl; R4 may be H and lower alkyl; B may be H, physiologically acceptable salts or metal, ester groups, ammonium cations, —CHR5OCO(CH2)nCH3, —CHR5OCOC(CH3)3, acylthiomethyl, acyloxy-alpha-benz, deltabutyrolactonyl, methoxycarbonyloxymethyl, phenyl, methylsulphinylmethyl, beta-morpholinoethyl, dialkylaminoethyl, and dialkylaminocarbonyloxymethyl, in which R5 is selected from the group consisting of H and lower alkyl; n is an integer between 0 and 10, inclusive; and A may be S, O, SO, SO2 or CH2. In embodiments, the beta-lactam ring may be cleaved by a beta-lactamase enzyme effective to free a fluorophore. Methods of assaying beta-lactamase activity and monitoring expression in systems using beta-lactamase as a reporter gene are also disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {9}
}
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