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First report of an antifungal amidase from Peltophorum pterocarpum. [corrected].
- Source :
-
Biomedical chromatography : BMC [Biomed Chromatogr] 2010 May; Vol. 24 (5), pp. 458-64. - Publication Year :
- 2010
-
Abstract
- A 60 kDa antifungal amidase was purified from Peltophorum pterocarpum [corrected] seeds using an isolation procedure that entailed ion-exchange chromatography on Q-Sepharose, ion-exchange chromatography on DEAE-cellulose and FPLC-gel filtration on Superdex 75. Unlike most other antifungal proteins isolated previously, it was adsorbed on Q-Sepharose and DEAE-cellulose. The isolated protein, designated as peltopterin, exhibited an N-terminal amino acid sequence closely resembling those of amidases. It exhibited amidase activity and digested iodoacetamide with an optimum pH and temperature at pH 9 and 50 degrees C, respectively. It also hydrolyzed acrylamide and urea. It impeded mycelial growth in Rhizotonia solani with an IC(50) of 0.65 microm. Chitin deposition at hyphal tips in R. solani was observed by staining with Congo red after incubation with peltopterin. Its antifungal activity was stable throughout pH 0-14 and 25-100 degrees C. It potently inhibited HIV-1 reverse transcriptase with an IC(50) of 27 nm.<br /> (2009 John Wiley & Sons, Ltd.)
- Subjects :
- Amidohydrolases chemistry
Antifungal Agents chemistry
Cell Line, Tumor
Cell Proliferation drug effects
Chromatography, Ion Exchange methods
HIV Reverse Transcriptase antagonists & inhibitors
HIV Reverse Transcriptase metabolism
Humans
Seeds chemistry
Amidohydrolases isolation & purification
Amidohydrolases pharmacology
Antifungal Agents isolation & purification
Antifungal Agents pharmacology
Fabaceae chemistry
Fungi drug effects
Subjects
Details
- Language :
- English
- ISSN :
- 1099-0801
- Volume :
- 24
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- Biomedical chromatography : BMC
- Publication Type :
- Academic Journal
- Accession number :
- 19688818
- Full Text :
- https://doi.org/10.1002/bmc.1312