The invention relates to a modified PIN4 gene, the wild type of which is as identified in SEQ ID No. 1, encoding the protein of SEQ ID No. 5, or the wild type of which encodes a protein that has a sequence similarity of at least 80% to SEQ ID No. 5, which modified PIN4 gene encodes a protein that comprises an amino acid change as a result of the modification, and which modified protein is capable of inducing parthenocarpic fruit set when present in a plant. The invention also relates to plants and fruits that carry the gene. Such plants are capable of parthenocarpic fruit set and the fruits do not contain seeds. The invention further relates to use of the gene in breeding and producing plants capable of parthenocarpic fruit set.
The presently-disclosed subject matter includes nanoparticles that comprise a plurality of assembled polymers. In some embodiments the polymers comprise a first block that includes hydrophilic monomers, the first block substantially forming an outer shell of the nanoparticle, and a second block that includes cationic monomers and hydrophobic monomers, the second block substantially forming a core of the nanoparticle. In some embodiments a polynucleotide is provided that is bound to the cationic monomers of the nanoparticle. The presently-disclosed subject matter also comprises methods for using the present nanoparticles to include RNAi in a cell as well as methods for making the present nanoparticles.
Disclosed herein plant propagation materials, methods of manufacturing, formulations and uses thereof. The plant propagation materials disclosed herein may comprise a strigolactone obtained by a biosynthetic process. The plant propagation material may comprise a chemical mimic of a strigolactone. The strigolactone may be 5-deoxystrigol. Methods of manufacturing the plant propagation materials may comprise a chemical process. Alternatively, methods of manufacturing the plant propagation material may comprise a biosynthetic process. The methods may comprise use of one or more polynucleotides. The polynucleotides may encode a metabolite. The polynucleotides may comprise one or more genes encoding one or more components of a strigolactone pathway.
A W303a Saccharomyces cerevisiae yeastcell which contains a polynucleotide that encodes a functional Bax polypeptide under the control of a galactose- inducible promoter that is integrated at the LEU2 chromosomal locus. A kit of parts comprising the yeast cells and a yeastplasmid vector suitable for transforming a cDNA library into the yeast cells. Use of the yeast cell for screening a cDNA library for a polynucleotide that is or encodes an inhibitor of B ax-mediated apoptosis. Genes and polypeptides that inhibit Bax-mediated apoptosis and which were identified from a human hippocampuscDNA library screened in the yeast cells. A method of combating Bax-mediated apoptosis in a cell using an inhibitor of Bax-mediated apoptosis which was identified from a human hippocampus cDNA library screened in the yeast cells. A method of promoting Bax-mediated apoptosis in a cell using an inhibitor or antagonist of the anti-apoptotic polypeptides identified from a human hippocampus cDNA library screened in the yeast cells.
The invention relates to engineered Escherichia coli capable of high-yield production of fumaric acid; specifically, fumarase coded genes fumA and fumC of Escherichia coli are knocked off, and maleic cis-trans isomerasegene from Serratia marcescens is converted to obtain the engineered Escherichia coli. The invention also discloses a method of synthesis of catalyzing fumaric acid from maleic acid by using the engineered Escherichia coli. The method includes culturing the engineered Escherichia coli by fermenting, subjecting the engineered Escherichia coli to high-density inductive expression when OD600 reaches 40-80, and applying the obtained fermentation broth to biochemical catalysis of maleic acid in presence of Engineered Escherichia coli to obtain fumaric acid. The genes fumA and fumC in the Escherichia coli are knocked off by using Red homologous recombination, a metabolic pathway of its fumaric acid to L-malic acid is cut off, the maleic cis-trans isomerase from Serratia marcescens is then expressed, and the obtained genetically-engineered Escherichia coli can efficiently convert maleic matrix to synthesize high-purity fumaric acid, there is nearly no L-malic acid byproduct synthesized, and basis is provided for the industrialized production of fumaric acid by whole-cell process catalysis of maleic acid.
Efficient sequence specific gene silencing is possible through the use of siRNA technology. By selecting particular siRNAs by rational design, one can maximize the generation of an effective gene silencing reagent, as well as methods for silencing genes. Methods, compositions, and kits generated through rational design of siRNAs are disclosed including those directed to nucleotide sequences for CTNNB1.
Efficient sequence specific gene silencing is possible through the use of siRNA technology. Be selecting particular siRNAs by rational design, one can maximize the generation of an effective gene silencing reagent, as well as methods for silencing genes. Methods compositions, and kits generated through rational design of siRNAs are disclosed, including those directed to the nucleotide sequences for HAO1.
Efficient sequence specific gene silencing is possible through the use of siRNA technology. By selecting particular siRNAs by rational design, one can maximize the generation of an effective gene silencing reagent, as well as methods for silencing genes. Methods, compositions, and kits generated through rational design of siRNAs are disclosed including those directed to nucleotide sequences for TTR.
Efficient sequence specific gene silencing is possible through the use of siRNA technology. Be selecting particular siRNAs by rational design, one can maximize the generation of an effective gene silencing reagent, as well as methods for silencing genes. Methods compositions, and kits generated through rational design of siRNAs are disclosed, including those directed to the nucleotide sequences for HAO1.
Efficient sequence specific gene silencing is possible through the use of siRNA technology. Be selecting particular siRNAs by rational design, one can maximize the generation of an effective gene silencing reagent, as well as methods for silencing genes. Methods compositions, and kits generated through rational design of siRNAs are disclosed, including those directed to the nucleotide sequences for AAT.
The invention relates to a proteinmutant, particularly a maleate cis-trans isomerase, and a coding gene and application thereof. The amino acid sequence of the maleate cis-trans isomerase is disclosed as SEQ ID NO.4, or an amino acid sequence with equal functions, which is derived from SEQ ID NO.4 and subjected to substitution, deletion or addition of one or more amino acids. Compared with the wild type maleate cis-trans isomerase, the changes of the specific amino acid sequence of the mutant as follows: K51I (the 51st lysine is changed into isoleucine), R177S (the 177th arginine is changed into serine), and A212G (the 212th alanine is changed into glycine). The test verifies that the enzyme activity of the mutant is enhanced by 2.71 times as compared with the wild type maleate cis-trans isomerase.