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The ribosome inactivating protein (RIP) gene from D. sinensis was used as a cytotoxin gene to induce male sterility in tobacco plants. The TA29 promoter, obtained by PCR amplification from tobacco, was fused to the RIP cDNA, and the chimaeric molecule was then introduced into tobacco plants by Agrobacterium-mediated transformation. Out of twenty-one(More)
Beef liver dihydropyrimidine amidohydrolase has been purified to homogeneity using both an electrophoretic and a hydrophobic chromatographic method. The enzyme is a tetramer with a molecular weight of 226,000 g mol-1, a subunit molecular weight of 56,500 g mol-1, and contains 4 mol of tightly bound (Ks greater than or equal to 1.33 X 10(9) M-1) Zn2+ per(More)
A library of the bacterial artificial chromosome (BAC) that consisted of a total of 78,336 clones with an average insert size of 80 kb was constructed from Capsicum annuum, 'CM334', which is resistant to Phytophthora capsici and PVY. Based on a haploid genome size of pepper of 2,702 Mbp/C, the BAC library was estimated to contain approximately three genome(More)
Bovine liver dihydropyrimidine amidohydrolase (EC has been subjected to atomic absorption analysis. Three different preparations of homogeneous enzyme indicated that the enzyme contains 4.3 +/- 0.3 g atoms of Zn2+ per mol of enzyme or 1.1 g atoms of Zn2+ per subunit. No Co2+, Mn2+, Mg2+ or Cd2+ was detected. Exhaustive dialysis against either(More)
The nucleotide sequence of the 3'-terminal region of the Korean isolate of cymbidium mosaic virus (CyMV-Ca) from a naturally infected cattleya was determined. The sequence contains an open reading frame (ORF) coding for the viral coat protein (CP) at the 3'-end and three other ORFs (triple gene block or movement protein) of CyMV. The CP gene encodes a(More)
Incubation of 5-iodo-5,6-dihydrouracil (IH2Ura) with soluble rat liver enzymes at 37 degrees, pH 8.2, results in the rapid release of iodide ion. The second product resulting from the carbon skeleton of the dihydropyrimidine ring system is 2-amino-2-oxazoline-5-carboxylic acid (I). Ultraviolet absorbance measurements at 225 nm, where both IH2Ura and iodide(More)
We investigated the effect of aqueous extract of Vitex rotundifolia (L.) (Verbenaceae) fruits (VRFE) on the immediate-type allergic reactions in vivo and in vitro. VRFE (10(-4)-1.0 g/kg) dose-dependently inhibited systemic allergic reaction induced by compound 48/80. When VRFE was employed in a systemic allergic reaction test, the plasma histamine levels(More)
To isolate a ribosome inactivating protein (RIP) gene, six plant species were surveyed for antiviral activity. Crude proteins extracted from these plants were tested for the antiviral activity against tobacco mosaic virus (TMV) in Nicotiana glutinosa. All the plants, Spinacia oleracea, Amaranthus lividus, Dianthus superbus, Dianthus sinensis and Celosia(More)
BACKGROUND Obsessive-compulsive disorder (OCD) is a chronic, relapsing mental illness. Selective serotonin reuptake inhibitors block serotonin transporters (SERTs) and are the mainstay of treatment for OCD. SERT abnormalities are reported in drug-free patients with OCD, but it is not known what happens to SERT levels during treatment. This is important as(More)
This study examined the micro-structural and electrical properties of N+-ion-implanted ZnO nanorods. Nitrogen ions with energies of 10-90 keV and beam fluxes of 10(13)-10(16) ions/cm2 were implanted on vertically-aligned ZnO nanorods. Energy dispersive X-ray spectroscopy measurements showed that N+ ions were spread uniformly over the nanorods. Extended(More)