Methods for the identification of inhibitors of asparagine...

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C435S029000, C435S032000, C435S069100, C435S252200, C514S032000, C514S601000, C514S603000, C514S924000, C536S023100, C536S023700

Reexamination Certificate

active

06852484

ABSTRACT:
The present inventors have discovered that Asparagine Synthase is essential for fungal pathogenicity. Specifically, the inhibition of Asparagine Synthase gene expression in fungi results in no signs of successful infection or lesions. Thus, Asparagine Synthase can be used as a target for the identification of antibiotics, preferably antifungals. Accordingly, the present invention provides methods for the identification of compounds that inhibit Asparagine Synthase expression or activity. The methods of the invention are useful for the identification of antibiotics, preferably antifungals.

REFERENCES:
patent: 4920109 (1990-04-01), Onishi et al.
patent: 4920111 (1990-04-01), Onishi et al.
patent: 4920112 (1990-04-01), Onishi et al.
patent: 4920113 (1990-04-01), Onishi et al.
patent: 4921844 (1990-05-01), Onishi et al.
patent: 5976848 (1999-11-01), Davis et al.
patent: 6074830 (2000-06-01), Bacot et al.
Reitzer, L.J. et al. J. Bacteriology, 151, 1982, pp. 1299-1313.*
Ramos et al. Eur. J. Biochem., 1980, vol. 108, pp. 373-377.*
Ramos et al. Eur. J. Biochem., 1979, vol. 94, pp. 409-417.*
Aufauvre-Brown, Agnes et al., “Aspergillus fumigatus chsE: A Gene Related to CHS3 ofSaccharomyces cerevisiaeand Important for Hyphal Growth and Conidiophore Development but Not Pathogenicity.” Fungal Genetics and Biology (1997) 21: 141-152.
Tang, Christoph M. et al., “Virulence Studies ofAspergillus nidulansMutants Requiring Lysine or p-Aminobenzoic Acid in Invasive Pulmonary Aspergillosis.” Infection and Immunity (1994) Dec.:5255-5260.
Brown, Jeremy S. et al., “Signature-tagged and directed mutagenesis identify PABA synthetase as essential forAspergillus fumigatuspathocenicity.” Molecular Microbiology (2000) 36(6): 1371-1380.
D'Enfert, Christophe., “Attenuated Virulence of Uridine-Uracil Auxtrophs ofAspergillus fumigatus.” Infection and Immunity (1996) Oct.: 4401-4405.
Hensel, M. et al., “The role of theAspergillus fumigatusareA gene in invasive pulmonary aspergillosis.” Mol Gen enet (1998):553-557.
Shibuya, Kazutoshi et al., “Histopathology of experimental invasive pulmonary aspergillosis in rats: Pathological comparison of pulmonary lesions induced by specific virulent factor deficient mutants.” Microbial Pathogenesis (1999) 27:123-131.
Smith, Joanne M. et al., “Virulence ofAspergillus fumigatusDouble Mutants Lacking Restrictocin and an Alkaline Protease in a Low-Dose Model of Invasive Pulmonary Apergillosis.” Infection and Immunity (1994) Dec.: 5247-5254.
Reichard U. et al., Virulence of an aspergillopepsin-deficient mutant of Aspergillus fumigatus and evidence for another aspartic proteinase linked to the fungal cell wall. J Med Vet Mycol (1997) May-Jun; 35 (3):189-96.
Dang, Van-Ding, et al., “Cloning of the ASN1 and ASN2 genes encoding asparagine synthetases inSaccharomyces cerevisiaie: differential regulation by the CCAAT—box -binding factor”; Molecular Microbiology; 1996: vol. 22(4): pp. 681-692.
Boehlein, et al. “Characterization of Inhibitors Acting at the Synthetase Site ofEschericia coliAsparagine sythetase B”; Biochemistry; 2001, vol. 40; pp. 11168-11175.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Methods for the identification of inhibitors of asparagine... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods for the identification of inhibitors of asparagine..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods for the identification of inhibitors of asparagine... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3510294

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.