41 results about "Normal protein" patented technology

A method for separation of an aggregated misfolded protein from an environment including a non-aggregating normal form of the protein includes contacting both the misfolded and normal protein with a conjugated polyelectrolyte (CPE) and separating the CPE/protein complex from the other constituents of the sample.

The present invention provides antisense phosphorodiamidate morpholino oligomers which are useful for the suppression or inhibition of the HTT gene involved in Huntington's disease. The oligomers can selectively suppress mutant forms of the HTT protein while allowing the normal protein to be expressed in sufficient quantity to retain its function in the cell. Methods for treatment of Huntington's disease are also provided.

Disclosed herein are point mutations in the LMNA gene that cause HGPS. These mutations activate a cryptic splice site within the LMNA gene, which leads to deletion of part of exon 11 and generation of a mutant Lamin A protein product that is 50 amino acids shorter than the normal protein. In addition to the novel Lamin A variant protein and nucleic acids encoding this variant, methods of using these molecules in detecting biological conditions associated with a LMNA mutation in a subject (e.g., HGPS, arteriosclerosis, and other age-related diseases), methods of treating such conditions, methods of selecting treatments, methods of screening for compounds that influence Lamin A activity, and methods of influencing the expression of LMNA or LMNA variants are also described. Oligonucleotides and other compounds for use in examples of the described methods are also provided, as are protein-specific binding agents, such as antibodies, that bind specifically to at least one epitope of a Lamin A variant protein preferentially compared to wildtype Lamin A, and methods of using such antibodies in diagnosis, treatment, and screening. Also provided are kits for carrying out the methods described herein.

It is intended to provide techniques whereby a target protein is efficiently obtained as a normal protein even in the case of a protein which can be hardly expressed by usual recombinant DNA techniques. A fusion protein composed of a molecular chaperone, an intervening protein having an activity of cleaving a peptide bond, and a target protein is prepared, from which fusion protein the target protein is cleaved by the action of the intervening protein having the activity of cleaving a peptide bond. Examples of the intervening protein having the activity of cleaving a peptide bond include an intein and a protein consisting of a partial sequence of the intein.

The present invention provides for enhancing engraftment by co-infusing at least two partially HLA matched umbilical cord blood (“UCB”) units. The invention further provides for positive C3a mediated priming on responsiveness to doses of SDF-1 and C3a induced incorporation of CXCR4 in membranes in HSC and progenitors. The invention further provides for enhancing the homing of UCB HSC and progenitors via the SDF-1/CXCR4 pathway and that C3a and LL-37 are useful for this method. It is also disclosed herein that fragments of C3a (e.g., des-Arg) are effective in the methods of the invention, including enhancing homing of HSPCs to BM. The invention further encompasses the disclosure herein of NFAT1 regulation post-transcriptionally by both mir-184 and IFN-γ. The present invention further provides for measuring and using differences between UCB and adult CD4+/45RA+ T-cells as a means of defining strategies to enhance optimal allogeneic stem cell transplantation outcomes. The present invention further provides methods for maintaining IL-2 production in the absence of NFAT1 normal protein levels.

The invention relates to a method for separating aggregated misfolded protein from an environment comprising protein in a non-aggregated normal form, which comprises the following steps: using the conjugated polyelectrolyte (CPE) to contact with the misfolded protein and normal protein and separating a CPE/protein complex from other components of a sample.

The invention discloses a fluorescent protein marker preparation method and application. Carriers containing different fusion tags are selected according to the size of needed protein markers, primer sequences are determined according to the design of plasmids and insertion sequences, and the length is controlled to be about 20 bp; enzyme cutting sites are determined according to the different plasmids and different GFP gene segment sequences; the constructed plasmids are normally converted respectively, the plasmids are induced according to a method recommended by a manufacturer to express GFP recombinant protein in different sizes and be purified, then the 28 KD-80 KD fluorescent protein markers can be obtained, SDS-PAGE is adopted to detect the molecular weight and the purity of protein, and normal protein is quantified for standby application. According to the fluorescent protein marker preparation method and application, the expression carriers containing GFP open frames and the fusion tags in different sizes are constructed through recombinant, the carriers are induced to conduct expression and be purified respectively, the green fluorescent protein markers are prepared after the GFP protein in different sizes are selected to be mixed according to the needs, the inter-batch repeatability can be completely guaranteed and the experiment accuracy can be guaranteed.

The invention discloses a signal peptide for promoting protein extracellular expression, and belongs to the technical field of gene engineering and enzyme engineering. According to the invention, bacillus subtilis is used as a host, and the method comprises the following steps: performing synonymous mutation on endogenous signal peptides Ggt, YweA and YolA of bacillus subtilis, selecting monoclones with high and low fluorescence values through high-throughput screening, and after sequencing identification and signal peptide mutation, inoculating variants into a shake flask for fermentation verification, so that a synonymous mutation sequence capable of remarkably improving the extracellular protein quantity is obtained, and the protein expression quantity can be increased while normal protein translation is guaranteed. The synonymous mutation sequences of the Ggt signal peptide, the YweA signal peptide and the YolA signal peptide respectively enable the extracellular enzyme activity tobe improved by 1.45 times, 0.59 times and 1.04 times compared with that of a wild type, so that a new strategy is provided for extracellular high-efficiency expression of enzymes.

The invention discloses a quantum dot modified protein vaccine as well as a preparation method and application thereof, which relates to the field of nano materials and biomedicine. Raw materials of the quantum dot modified protein vaccine comprise quantum dot particles and antigen protein, the surfaces of the quantum dot particles comprise biocompatible functional groups, and the antigen protein and the functional groups act to enable the protein to be wound on the surfaces of the quantum dot particles under the action of non-covalent bonds. The antigen protein is modified through the quantum dots, the spatial conformation of the antigen protein can be changed, the immunogenicity of normal protein is remarkably enhanced due to conformation modification, and meanwhile the function of immunosuppressive protein on cancer cells is deregulated. And the specific recognition probability can be enhanced. According to the quantum dot modified protein vaccine, the immunogenicity of protein can be greatly improved, so that the quantum dot modified protein vaccine has better immune activation characteristics, the preparation method is simple, and the operation conditions are mild. The obtained quantum dot modified protein vaccine can be applied to personalized immunotherapy of cancers.

The invention provides a virus vector capable of realizing polygene editing of plants as well as a construction method and application of the virus vector, and relates to the technical field of gene editing of the plants. According to the virus vector, tRNA and sgRNA are sequentially linked to form unit sequences, and the unit sequences are linked with vectors pCE2; a target sequence of a target gene is inserted between the tRNA and sgRNA of each unit sequence by virtue of a ''golden-gate'' cloning method, the multiple unit sequences are linked and arrayed in series to form a series-wound sequence, the series-wound sequence is inserted into a TRV2 virus vector, after plants capable of overexpressing Cas9 proteins are infected by TRV, and a tRNA-sgRNA expression sequence unit assembled withdifferent unit sequences is transcribed, thereby finishing a polygene editing process, so that editing of multiple genes or combined editing of different genes according to targets can be realized. According to the construction method, the expression quantity of mRNA capable of being translated into normal protein sequences in the plants is lower, a gene silencing phenotype is relatively stable,and meanwhile, multiple genes can be precisely knocked out in a targeting manner.

Disclosed is a novel use of xCT protein and gene coded by same in generation of nerve degeneration diseases. It is discovered for the first time that xCT protein and gene coded by same relates to generating mechanism of nerve degeneration diseases. A novel gene causing nerve degeneration diseases is discovered. Significance of the invention lies in that medicine improving expression quantity of Slc7a11 gene and xCT is screened by using Slc7a11 gene and xCT as targets, to improve expression quantity of Slc7a11 gene(normal gene) and xCT(normal protein), so to improve oxidation damage resistance ability of neurocyte, and as a result to prevent and slow down generation of nerve degeneration diseases. Animal models with the nerve degeneration disease of low expression quantity of Slc7a11 gene and xCT can be used to screen protein, nucleic acid, small organic molecule, and etc. which can improve expression quantity of Slc7a11 gene and xCT and use as candidate medicine.

The invention discloses a method for detecting susceptibility of ankylosing spondylitis, which comprises the step of detecting whether transporter antigenic peptides 1 (TPA1), transcripts and/or protein of an individual exist mutation or not compared with normal TPA1, normal transcripts and/or normal protein; and if the mutation exists, the possibility that the individual suffers from the ankylosing spondylitis is larger than the possibility that general group suffers form the ankylosing spondylitis. The invention also discloses a corresponding detecting kit.

The invention discloses a functional biofood containing hericium erinaceus. The biofood is characterized by comprising the following ingredients in parts by weight: 10-30 parts of hericium powder, 0.1-5 parts of selenium protein powder, 1-5 parts of fishmea, 0.1-0.5 part of low-sodium flavoring peptide salts, and 0.5-1 part of excipients. The product can be taken with water directly as an electuary, 20-50g daily, thus being capable of meeting the absorption of protein and selenium element; and the biofood can be added into food as a raw material of the biofood, such as cooked wheaten food, puffed food, jelly, lotus root starch, nutritional granules and the like. The product is rich in nutrients, fine and free from fishy smell in mouthfeeling, the synthesis and supplementation of in-vivo normal protein can be accelerated, and organic seleneium is easily absorbed and utilized by a human body and has no toxic or side effects to a human body, and has remarkable physiological health-care functions on the human body.

The invention discloses feed for meat pigeons in the brooding period in winter. The feed is prepared from, by mass percentage, 5-15% of rice bran, 20-30% of barley, 5-10% of cottonseed cakes, 2-5% of shredded ginger, 8-12% of bran, 4-8% of red beans, 10-17% of fish meal, 0.1-0.5% of calcium bicarbonate, 8-12% of vegetable leaves, 5-10% of forage, 0.1-0.4% of salt and 0.1-0.5% of shellfish meal. Meat pigeons in the brooding period require a large amount of protein, particularly in winter, so the use amount of protein supplement feed should be increased to guarantee normal protein supply in the following development process. Functions of the digestive systems of meat pigeons in the brooding period are weak, so a proper amount of green forage is added according to a certain proportion, on one hand, digestion and absorption of the feed are benefited, and on the other hand, the resistance of the meat pigeons can be improved. The temperature is low in winter, and the functions of activating blood circulation and keeping warmth can be achieved by adding shredded ginger to the feed. Besides, diseases are reduced.

The invention was involved in a method to detect primary hypertension susceptibility. The method contained two steps,namely assaying acceptor gene AT2R of individual angiotensin II2 and analysing variation between the protein and the normal protein. The variation showed that the individual had more chance to get primary hypertension than normal people. The invention provided corresponding detection kit.

The invention discloses a tumor neoantigen prediction method based on HPV integration, and belongs to the technical field of bioinformatics. The method comprises the following steps: S01, assembling a tumor sample transcript; s02, screening a sample HPV (human papillomavirus) integrated transcript; s03, translating the HPV and integrating the transcript into polypeptide; s04, obtaining polypeptide short sequence fragments, and filtering polypeptides in human normal proteome; s05, performing genetic typing on the human leukocyte antigen of the sample; and S06, predicting the affinity of the peptide fragment, and screening new antigens. The new antigen obtained by the invention is a result of HPV integration and is closely related to a disease progression process. The new antigen obtained by the invention comes from RNA sequencing data, is a result of cell transcription, and has higher probability of translation to produce protein.