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421 results about "Base sequence" patented technology

SSR multiple PCR primer for paternity test of grass carp and application of SSR multiple PCR primer

The invention discloses SSR (simple sequence repeat) multiple PCR (polymerase chain reaction) primers for paternity test of grass carp and application of the SSR multiple PCR primers. The primers comprise 16 pairs of specific primers, and base sequences of the 16 pairs of specific primers are respectively shown as SEQ ID NO.1-32 in sequence. The invention further discloses a fish paternity test kit comprising the SSR multiple PCR primer, an SSR multiple fluorescent PCR method for grass carp paternity test and application of the SSR multiple PCR primer, the kit or the method in grass carp paternity test. According to the kit, 16 pairs of specific SSR primers, multiple fluorescent PCR and a universal amplification primer technology are combined, 16 sites can be detected at a time, universal primers can be repeatedly used, and compared with simple single-site detection, the efficiency is improved, and the cost is reduced; the microsatellite loci contained in the invention are 3-6 basic groups, the allele size interpretation is more accurate, and the accuracy of genotype data is improved.
Owner:HUNAN NORMAL UNIVERSITY

SCRE10 gene for improving disease resistance of rice and application of SCRE10 gene

The invention belongs to the technical field of plant genetic engineering, and particularly relates to an SCRE10 gene for improving rice disease resistance and application of the SCRE10 gene, the base sequence of the SCRE10 gene is shown as SEQ ID NO.1, and the amino acid sequence of the SCRE10 gene is shown as SEQ ID NO.2. Through construction of a dexamethasone induced expression SCRE10 transgenic rice plant, it is found that the transgenic rice can significantly induce PR gene expression and active oxygen outbreak, and the resistance of rice to false smut and bacterial leaf blight can be improved. The invention proves that heterologous inducible expression of the Ustilaginoidea virens SCRE10 gene has the function of positively regulating the disease resistance of the rice, and the SCRE10 gene can be used for improving the disease resistance of the rice, which is of great significance to the creation of disease-resistant germplasm of the rice.
Owner:JILIN AGRICULTURAL UNIV

Variation identification method for nanopore single molecule sequencing current signal

The invention relates to a variation identification method of a nanopore single molecule sequencing current signal, which comprises the following steps of: dividing an original current signal generated by nanopore single molecule sequencing into continuous time periods according to a sequence that a basic group passes through a nanopore, calculating an average signal rhythm, constructing a standard time rhythm when a standard basic group sequence passes through the nanopore, and identifying the variation of the nanopore single molecule sequencing current signal. Comparing the offset difference between the actually measured average signal rhythm and the standard time rhythm, wherein a difference salient region is a potential variation region; current signals of front and back neighborhoods are extracted, a current signal disturbance difference value is quantized, and a region with the disturbance difference value having obvious direction asymmetry characteristics is a variation region to be confirmed; the range is expanded, current signals are extracted, disturbance intensity is calculated, and when the disturbance intensity presents a gradually-enhanced or gradually-weakened continuous change trend, it is judged that the variation area to be confirmed has physical rationality; and determining a theoretical current signal by using the corresponding non-variation sequence, comparing the theoretical current signal with an actually measured current signal, calculating a current difference, and determining that the current difference exceeds a normal difference range as a real variation region.
Owner:JIAMUSI UNIVERSITY

DNA synthesis method

The invention discloses a DNA synthesis method which comprises the following steps: processing an initial substrate according to a preset strategy to obtain a target substrate with a Mark pattern and a plurality of reaction sites, and adjusting the positions of the target substrate and an ink-jet printing device through the Mark pattern, so that the working directions of a reaction unit array and the device are consistent, and the subsequent operation accuracy is ensured; deprotecting the reaction sites to generate active groups; sequentially spraying a target monomer solution and an activator solution into the reaction sites of the preset area after deprotection treatment through an ink-jet printing device, and carrying out a coupling reaction with the active groups to obtain a mixed solution containing a nucleotide chain; carrying out cleaning, oxidation, capping and deprotection treatment on the mixed solution to obtain a single-layer base product; according to the target base sequence, determining a corresponding target monomer solution, and circularly carrying out a reaction to obtain a mixed solution containing a nucleotide chain; and obtaining the synthesized DNA according to the mixed solution. According to the method, high-throughput, high-quality and high-efficiency DNA synthesis can be realized.
Owner:JETLIFE TECHNOLOGY (HANGZHOU) CO LTD

CRISPR / Cas12a-RPA-based sequence combination for rapidly detecting mouse hepatitis virus and kit thereof

The invention discloses a CRISPR / Cas12a-RPA (clustered regularly interspaced short palindromic repeats / CRISPR associated protein 12a-recombinase polymerase amplification)-based sequence combination for rapidly detecting mouse hepatitis virus and a kit thereof, and belongs to the technical field of biological detection The sequence combination comprises an RPA primer pair sequence, a crRNA sequence and an ssDNA probe sequence; the kit comprises an RPA primer pair sequence, a crRNA sequence and an ssDNA probe sequence, the kit further comprises a mouse hepatitis virus negative control standard substance, RNase-free water, an RPA reaction buffer solution, an NEB buffer solution, Lba Cas12a nuclease, dry powder RPA reaction microspheres containing recombinase polymerase and magnesium acetate with the concentration of 280 mM. The kit can be used for rapidly detecting the mouse hepatitis virus. The primer sequence combination provided by the invention is good in conservative property and specificity and relatively high in sensitivity, and rapid detection of the mouse hepatitis virus can be realized.
Owner:YUNNAN UNIV

PDRN as well as preparation method and application thereof

The invention discloses PDRN and a preparation method and application thereof.The base sequence of the PDRN is shown as SEQ ID NO1, and the preparation method of the PDRN comprises the following steps that fermentation treatment is conducted through lactobacillus plantarum, and thalli are collected after an obtained fermentation culture solution is centrifuged; and resuspending the obtained thalli, homogenizing and crushing, centrifuging to remove precipitate, concentrating by using a 5kDa hollow fiber membrane, purifying the obtained concentrated solution by using a Q column, and then concentrating and changing the solution to obtain the high-purity PDRN. According to the method, the PDRN is obtained through fermentation of lactobacillus plantarum for the first time, compared with PDRN sourced from salmon or salmon and the like at present, the method is lower in production cost, and a new way is provided for PDRN production. The PDRN obtained by the method disclosed by the invention is high in purity and single in molecular weight, and experiments prove that the PDRN obtained by the method disclosed by the invention has higher activity in the aspects of promoting cell proliferation, promoting collagen generation and the like.
Owner:ZHEJIANG JIBEI BIOTECHNOLOGY CO LTD

Compositions and methods for suppressing intracellular synthesis of the beta subunit of human chorionic gonadotropin

ActiveUS12590308B1Organic active ingredientsTumor/cancer cellsBase JHCG - Human chorionic gonadotropin
A composition of matter includes an antisense phosphorodiamidate morpholino oligomer (MO) that includes an MO base sequence. The MO base sequence is arranged to bind a corresponding complementary base sequence of messenger RNA (mRNA) transcribed from one or more genes for the beta subunit of human chorionic gonadotropin (hCG-β). An inventive method, for suppressing intracellular synthesis of a beta subunit of human chorionic gonadotropin (hCG-β), includes introducing such an MO into one or more cells.
Owner:JAMES SUMMERTON LIVING TRUST DATED MAY 15 2008

Double stranded oligonucleotide compositions for RNA interference and methods relating thereto

The present disclosure provides double stranded oligonucleotides, compositions, and methods relating thereto. The present disclosure encompasses the recognition that structural elements of double stranded oligonucleotides, such as base sequence, chemical modifications (e.g., modifications of sugar, base, and / or internucleotidic linkages) or patterns thereof, and / or stereochemistry (e.g., stereochemistry of backbone chiral centers (chiral internucleotidic linkages), and / or patterns thereof, can have significant impact on oligonucleotide properties and activities, e.g., RNA interference (RNAi) activity, Ago2 loading, thermal stability, in vivo stability, delivery to tissues and into cells, etc. The present disclosure also provides methods for treatment of diseases, e.g., hepatic diseases, central nervous system (CNS) diseases, etc., using provided double stranded oligonucleotide compositions, for example, in RNA interference.
Owner:WAVE LIFE SCI LTD

Method for detecting apple snails

To detect apple snails from environmental DNA with a high detection rate.SOLUTION: This method amplifies and detects environmental DNA in a sample with a first primer having a specific base sequence, a second primer having another specific base sequence, and a probe having still another base sequence.SELECTED DRAWING: None
Owner:NAT AGRI & FOOD RES ORG

Application method of donkey whole genome 60K liquid phase chip

The invention relates to the technical field of biology, and discloses an application method of a donkey whole genome 60K liquid phase chip, which comprises the following steps: carrying out nucleic acid extraction on pure biological tissues to obtain biological tissue nucleic acid; the method comprises the following steps: screening biological tissue nucleic acid to obtain target tissue nucleic acid, carrying out fragment connection and mixing on the target tissue nucleic acid to obtain a nucleic acid fragment mixture, carrying out amplification reaction on the nucleic acid fragment mixture to obtain an amplified nucleic acid library, and sequencing the hybridization liquid phase chip to obtain chip sequencing data; performing single-base variation screening on the chip sequencing data to obtain single-base variation data, performing base sequence splicing on the single-base variation data to obtain a single-base sequence, and calculating a genetic effect value corresponding to the donkey sample; and determining a core gene set corresponding to the donkey sample from the chip sequencing data, mining key gene loci in the core gene set, and generating a personalized genetic report of the donkey sample. The method can improve the analysis accuracy of the donkey whole genome.
Owner:LIAOCHENG UNIV +2

Procambarus clarkii mitochondrial gene specific amplification primers and application thereof

The invention relates to a group of specific amplification primers for mitochondrial genes of procambarus clarkia and application thereof, and belongs to the technical field of molecular biology, and the mitochondrial genes of the procambarus clarkia comprise cytochrome c oxidase I subunit genes and cytochrome b genes. The specific amplification primer of the CO I gene comprises a CO I gene upstream primer and a CO I gene downstream primer, wherein the base sequences of the CO I gene upstream primer and the CO I gene downstream primer are respectively shown as SEQ NO.1 and SEQ NO.2; the specific amplification primer of the Cytb gene comprises a Cytb gene upstream primer and a Cytb gene downstream primer of which the base sequences are respectively as shown in SEQ NO.3 and SEQ NO.4. The invention further discloses a kit for detecting the Cytb gene. According to the amplification method of the mitochondrial gene of the procambarus clarkia, PCR (Polymerase Chain Reaction) amplification is carried out on a DNA (Deoxyribonucleic Acid) template solution of the procambarus clarkia by adopting amplification primers of a mitochondrial COI gene and a Cytb gene of the procambarus clarkia. The procambarus clarkia mitochondrial gene specific amplification primer has high specificity, a single target gene can be stably amplified, the length of the obtained procambarus clarkia mitochondrial COI gene segment reaches about 1000 bp, and the length of the obtained procambarus clarkia mitochondrial Cytb gene segment reaches about 800 bp.
Owner:HUNAN PROVINCIAL QUALITY AQUATIC ORGANISM BREEDING & PROCESSING RESEARCH INSTITUTE CO LTD

Control method and control device for high-throughput biosynthesis ink-jet printing

The invention relates to the field of synthetic biology, in particular to a high-flux biosynthesis ink-jet printing control method and device, and the method comprises the steps: sequentially extracting base data from an obtained DNA base sequence file, and forming a one-dimensional original array; according to a preset printing width, the one-dimensional original array is converted into a two-dimensional array, meanwhile, visualization processing is carried out, corresponding colors are given to different basic groups, and a basic group distribution array diagram with matched row and column structures is obtained; establishing null arrays which correspond to different bases and are consistent in dimension based on the null arrays, traversing the original arrays and assigning values to the corresponding bases at the corresponding positions of the null arrays to obtain a plurality of single base arrays; converting the arrays into a two-dimensional array according to a preset width, and then converting the two-dimensional array into a monochromatic bitmap; and sending the bitmap according to the corresponding relationship between the basic groups and the nozzles and controlling printing. According to the invention, efficient and accurate printing of the base sequence in high-throughput biosynthesis is realized, and the synthesis efficiency and reliability are improved.
Owner:MICRO INK INTELLIGENT TECH (NANTONG) CO LTD

Compression and decompression method for DNA sequencing data

The invention discloses a compression and decompression method for DNA sequencing data, and belongs to the technical field of biological information. The technical problems that in the prior art, when third-generation sequencing data are compressed, flexibility is poor, and the compression rate is low are solved. According to the compression method for the DNA sequencing data, global compression or block compression can be dynamically selected before compression, different compression methods are adopted for different types of data, and the flexibility of the compression method is improved; when the base sequence is compressed, the adopted self-indexing structure is a lossless compression method, the initial positions of all the sequences can be compressed and restored by using smaller data volume, and the compression rate is improved. Due to the fact that a special design is adopted in a run length coding structure, a character part is removed, an obtained run length segment is shorter, lossless compression of the position and the sequence is guaranteed, and meanwhile a better compression effect is provided. The method is mainly used for compression and decompression of DNA sequencing data.
Owner:HARBIN INST OF TECH

Optogenetics tool for light-operated induced protein degradation as well as construction method and application of optogenetics tool

The invention relates to the field of optogenetics, in particular to an optogenetics tool for light-operated induced protein degradation and a construction method and application of the optogenetics tool. The invention relates to an optogenetics tool for light-operated induced protein degradation, which is characterized by comprising a fusion system of a truncated body mTRIM211-80 of mTRIM21 and CRY2, the base sequence of the mTRIM211-80 is as shown in SEQ ID NO. 1 (sequence identifier number 1); the base sequence of the CRY2 is as shown in SEQ ID NO. 2. The optogenetics tool is used for inducing the TRIM21 to form a polymer by utilizing the blue light photosensitive protein CRY2 and is used for the targeted regulation and control of the protein degradation under the driving of the blue light. Targeted degradation of protein can be achieved by utilizing Intrabody (intracellular antibody), time and space targeting is achieved, and after an optogenetics toolbox is optimized, the sensitivity and the reaction rate of the optogenetics toolbox are further improved.
Owner:ZHEJIANG UNIV OF TECH +1

Signal peptide of GLP-1 and analogue thereof and application of signal peptide

The invention belongs to the technical field of biological medicine. The invention relates to a signal peptide, in particular to a signal peptide of GLP-1 and an analogue thereof and application thereof. The invention provides a signal peptide of a GLP-1 protein or an analogue thereof. The amino acid sequence of the signal peptide is shown as any one of SEQ ID NO.1-8. The signal peptide of the GLP-1 protein is improved, so that the signal peptide can promote the generation of an inclusion body and optimize the property of the inclusion body, and also can improve the unit yield of the target protein, and finally, the target protein can obtain more efficient expression. Besides, while the signal peptide is truncated, the base sequence of the target protein is optimized, the character of the inclusion body is changed, and the character of the inclusion body is further optimized. When the fusion protein is used for preparing the GLP-1 protein analogue, the proportion of the target protein in an inclusion body can be greatly improved while the original high inclusion body yield is ensured, the purpose of improving the productivity from the source is finally achieved, and the fusion protein has good application prospects and value.
Owner:GUANGZHOU BAIYUNSHAN BAI DI BIO-TECH CO LTD

Nanopore sequencing signal identification method and system based on Transform

The invention is suitable for the technical field of gene sequencing, and provides a nanopore sequencing signal identification method and system based on Transform, and the method comprises the following steps: carrying out normalization processing on a nanopore sequencing signal, and segmenting the nanopore sequencing signal into signal windows with fixed lengths; signal features are extracted through a Transformer encoder comprising a convolutional layer and a multi-head self-attention module; generating a prediction probability of a current base through a cross attention mechanism by adopting an autoregressive Transform decoder and combining the signal features and context information of a decoded base sequence; iteratively generating an optimal base sequence based on a beam search algorithm, and optimizing decoding efficiency in combination with key value cache; and carrying out overlapping region fusion and quality control on a segmented decoding result, and outputting a final sequence. According to the method, the precision and reliability of nanopore sequencing in complex biological sequence analysis are remarkably improved, and the recognition accuracy on multiple gene sequencing data sets is higher than that of an existing CTC-based model.
Owner:SHENZHEN UNIV +1

SSR multiple PCR primer for megalobrama amblycephala paternity test and application

The invention discloses SSR (Simple Sequence Repeat) multiple PCR (Polymerase Chain Reaction) primers for megalobrama amblycephala paternity test and application, the primers comprise seven pairs of specific primers, namely a primer pair MamGLB2501, a primer pair MamGLB2502, a primer pair MamGLB2503, a primer pair MamGLG2504, a primer pair MamGLG2505, a primer pair MamGLR2506 and a primer pair MamGLR2507, and the base sequences of the seven pairs of specific primers are sequentially shown as SEQ ID NO.1-14; the invention also discloses an SSR multiplex fluorescent PCR method for megalobrama amblycephala paternity test by using the primer and application of the primer or the method in megalobrama amblycephala paternity test. The microsatellite site amplified by the primer is 3-6 base repetition, the typing is accurate, and the polymorphism of the amplified site is high; the method is accurate in identification and low in price.
Owner:HUNAN NORMAL UNIVERSITY

MRNA sequence scoring method and related equipment

The invention discloses an mRNA sequence scoring method and related equipment. The method comprises the following steps: acquiring an mRNA sequence to be scored; extracting a key base sequence from the mRNA sequence, wherein the key base sequence comprises an initiation codon context and a termination codon context; inputting the key base sequence into a target scoring model, and processing to obtain a score of the mRNA sequence in the target index; wherein the target scoring model comprises a multi-modal RNA sequence coding module and a large language model, and the target scoring model is obtained based on unsupervised pre-training of transcription sample data and supervised fine tuning of a score label data set corresponding to the target index. According to the method, a non-coding region and a coding region key region (start / stop codon context) are integrated as input, and a large language model trained based on mass data is used for processing, so that various complex factors such as sequence context information and secondary structures can be comprehensively considered, and the method can be widely applied to the technical field of gene sequence analysis.
Owner:GUANGZHOU NAT LAB

Bifidobacterium bacteria having oxygen tolerance, culture method, screening method, and composition containing bifidobacterium bacteria having oxygen tolerance and manufacturing method thereof

PendingCN122641676ABiotechnologyBase J
The objective of this invention is to provide: aerobic-tolerant Bifidobacterium spp. capable of being cultured under aerobic conditions, a method for culturing the same and a method for screening it, and a composition comprising aerobic-tolerant Bifidobacterium spp. and a method for manufacturing the same. The present invention that solves this problem is a method for culturing Bifidobacterium bacteria, comprising the step of culturing Bifidobacterium bacteria having any one of the following (1) to (7) under aerobic conditions: (1) a gene consisting of a base sequence shown in sequence number 1 or 2; (2) a gene having more than 90% identity with a base sequence shown in sequence number 1 or 2; (3) a gene consisting of a base sequence in which 1 to several bases are missing, substituted, or added to a base sequence shown in sequence number 1 or 2; (4) a gene consisting of a base sequence of DNA that can hybridize under strict conditions with a DNA consisting of a complementary sequence of a base sequence shown in sequence number 1 or 2; (5) a gene consisting of a degenerate isomer of a base sequence shown in sequence number 1 or 2; (6) a gene encoding a protein consisting of an amino acid sequence shown in sequence number 3 or 4; (7) a gene encoding a protein consisting of an amino acid sequence in which 1 to several amino acids are missing, substituted, or added to an amino acid sequence shown in sequence number 3 or 4.
Owner:MORINAGA MILK IND CO LTD

A method for serialization extraction of highly variable exons

PendingCN122290698AInformation densityExon
This invention discloses an efficient RNA data preprocessing method to address the problems of low processing efficiency and low information density in high-throughput sequencing data. Its core steps include: (1) introducing a parallel processing scheme for high-throughput sequence data, rapidly mapping RNA-seq data to a reference genome to generate a BAM file; (2) extracting base sequences and expression levels and storing them as compact PKL format files; (3) extracting all exon position information by parsing the genome annotation file; (4) combining multi-sample expression level data to screen for highly variable exons and constructing a high-information-density feature list based on the sample set; and (5) accurately extracting target sequences from the preprocessed file based on this list. Compared to traditional methods, this innovative approach achieves triple optimization: full-process parallel processing for accelerated computation, high-compression data storage, and adaptive feature selection. Processing speed is increased by 3-5 times, and data volume is reduced by more than 90%, making it suitable for high-throughput RNA-seq data analysis with large sample sizes.
Owner:TIANJIN UNIV

Mismatch recognition molecule, mismatch detection method, disease diagnosis method, and method for producing mismatch recognition molecule

To provide a molecule capable of recognizing a cytosine-cytosine mismatch in DNA.SOLUTION: A solution of FcDANP represented by the chemical formula below, and three solutions each obtained by mixing FcDANP with one of three DNAs having different base sequences, are measured using an ultraviolet-visible spectrophotometer. In the wavelength range of approximately 375-400 nm, the sample containing FcDANP and the DNA having a C-C mismatch exhibits a significantly higher absorption intensity than the other samples.SELECTED DRAWING: Figure 1
Owner:CHIEF OF DEFENSE EQUIP DEPT

Uca fatty acyl reductase bcfar2 gene and expression protein and application thereof

ActiveCN119351426BBiotechnologyTransgene
The present application relates to the technical field of plant genetic breeding, and particularly relates to a Brassica campestris fatty acyl reductase BcFAR2 gene, an expression protein thereof and application, a base sequence of the Brassica campestris fatty acyl reductase BcFAR2 gene is shown as SEQ ID NO. 1, and an amino acid sequence of the expression protein is shown as SEQ ID NO. 2, the Brassica campestris fatty acyl reductase BcFAR2 gene is cloned, and BcFAR2 gene overexpression Brassica campestris sterile plants can restore pollen activity; gene knockout Brassica campestris fertile plants can significantly reduce pollen activity; in Arabidopsis thaliana, overexpression of the gene can significantly improve salt tolerance of the transgenic plants; and in Brassica campestris, overexpression of the gene can significantly enhance salt tolerance.
Owner:ANHUI AGRICULTURAL UNIVERSITY +1

Mitochondrial molecular marker for identifying acrossocheilus fasciatus from different water systems and application of mitochondrial molecular marker

The invention discloses a mitochondrial molecular marker for identifying acrossocheilus fasciatus from different water systems and application of the mitochondrial molecular marker. A primer kit of the acrossocheilus fasciatus mitochondrial molecular marker comprises a primer pair as shown in SEQ NO: 1 and SEQ NO: 2, and / or a primer pair as shown in SEQ NO: 3 and SEQ NO: 4; the acrossocheilus fasciatus mitochondrial molecular marker is formed by amplifying primers contained in the acrossocheilus fasciatus mitochondrial molecular marker primer kit. The identification method comprises the following steps: carrying out DNA extraction on acrossocheilus fasciatus to be identified; carrying out PCR (Polymerase Chain Reaction) amplification on the extracted DNA target fragment by using the primer pair; sequencing the PCR amplification product to obtain a base sequence, comparing the base sequence with the acrossocheilus fasciatus mitochondrial molecular marker, and identifying the water system source of the acrossocheilus fasciatus to be identified according to the specific site of the acrossocheilus fasciatus. According to the method, acrossocheilus fasciatus geographical populations distributed in different water systems are distinguished from gene features, and technical guarantee is provided for acrossocheilus fasciatus proliferation and releasing parent sources and offspring seed traceability.
Owner:SHANGHAI OCEAN UNIV

Novel double-stranded RNA based on semaphorin-3a RNA sequence and use thereof

The present invention provides technology for inhibiting or suppressing proliferation of cells. Disclosed herein is a double-stranded RNA that has a first strand and a second strand which is complementary to the first strand, wherein the first strand has a main sequence which comprises 19-23 bases and in which a base at the 5'-end is guanine (G) or cytosine (C) and an additional sequence which comprises 2-4 bases and which is added to the 3'-end side of the main sequence. The main sequence is a portion of a base sequence that encodes semaphorin-3A, the portion including at least a portion of a base sequence that encodes a signal peptide region of the semaphorin-3A.
Owner:TOAGOSEI CO LTD

CrRNA and CRISPR-Cas system for joint detection of CHIKV and DENV and application

The invention provides CrRNA for combined detection of chikungunya virus (CHIKV) and dengue fever virus (DENV), the CrRNA comprises Cas12a-crRNA and Cas13a-crRNA, and the base sequences of the Cas12a-crRNA and the Cas13a-crRNA are respectively shown as SEQ ID NO.1 and SEQ ID NO.2. The invention also provides a kit for detecting the chikungunya virus (CHIKV) and the dengue fever virus (DENV). The invention also provides a CRISPR-Cas system comprising the crRNA and application of the CRISPR-Cas system, and also provides a rapid detection method for chikungunya virus and dengue virus. According to the present invention, by designing the specific Cas12a-crRNA and the specific Cas13a-crRNA, the CRISPR-Cas dual system fused with the RT-RAA is constructed, such that the efficient amplification and the accurate identification are achieved; a fluorescent probe or an immunochromatography strip is combined to read signals, sensitivity and simplicity are taken into consideration, rapid combined identification of the two viruses is achieved, the kit is adaptive to multiple scenes, and a support is provided for early diagnosis and epidemic situation prevention and control.
Owner:SUZHOU TRADITIONAL CHINESE MEDICINE HOSPITAL

A method, device and equipment for predicting activity of chemically modified siRNA

This invention discloses a method, apparatus, and device for predicting the activity of chemically modified siRNA, comprising: acquiring the original base sequence and chemical modification information of the target siRNA, and retrieving the physicochemical properties of the target siRNA; encoding the original base sequence, chemical modification information, and physicochemical properties as features; and generating a prediction result of the silencing efficiency of the target siRNA based on the encoded features using a pre-constructed prediction model; wherein the pre-constructed prediction model includes: a feature fusion sub-model and a classification sub-model; the feature fusion sub-model is used to perform feature fusion on the encoded features based on a cross-attention mechanism; and the classification sub-model is used to generate a prediction result of the silencing efficiency based on the fused features. This method, based on a multi-dimensional, multi-view learning strategy and an attention mechanism fusion model, significantly improves the algorithm's ability to represent chemically modified siRNA data, and, combined with the nonlinear data fitting ability of the deep learning framework, improves the accuracy of the algorithm in predicting the drug activity of chemically modified siRNA.
Owner:CHENGDU GENREZE GENE TECH CO LTD

Segmentation method for fluorescent spots in fluorescent images, and computer device and computer-readable storage medium

PCT designated stageWO2025200281A1BiostatisticsProteomicsThresholdingBiology
Provided in the present disclosure are a segmentation method for fluorescent spots in fluorescent images, and a computer device and a storage medium. The segmentation method comprises: performing base calling on at least some pixel positions in a plurality of fluorescent images, so as to obtain base sequences of the at least some pixel positions, wherein the plurality of fluorescent images are obtained by means of a plurality of consecutive sequencing cycles; aligning the base sequences of the at least some pixel positions with base sequences in a reference genome, so as to determine the error rates of the base sequences of the at least some pixel positions; using the pixel positions, the error rates of the base sequences of which are less than a preset error rate threshold value, as candidate pixel positions for region growing; and determining, from among the candidate pixel positions for region growing, seed points for base sequence region growing, performing region growing on the basis of the similarity between the base sequences of the seed points and the base sequences of the candidate pixel positions within the neighborhood of the seed points, and using a plurality of regions obtained after growth as a plurality of fluorescent spots in the fluorescent images.
Owner:SIKUN LIFE SCIENCE CO LTD

Precision-based immuno-molecular augmentation (PBIMA) computerized system, method, and therapeutic vaccine

As disclosed herein a precision based immunomolecular augmentation (PBIMA) high specificity patient profiling networked computer system, rapid therapeutic vaccine design method, and personalized vaccine, which utilizes immuno-molecular biopathway HLA affinity mapping and selection prediction ranking tools. This PBIMA approach comprises: Strategic-Selection, Molecular-Mapping, Antigen-Alignment, Receptor-Recognition, and Tactical Technology (SMART). The platform obtains data from a patient's genes and proteins as input. NGS data, including WES, WGS, ctDNA and cfDNA, RNAseq uses as input. PBIMA comprises a gene-protein-cell Cloud-based sequence editing interface to select the high confidence peptides. The PBIMA vaccine is a solution-based multi-purpose vaccine design strategy. PBIMA technology can produce therapeutic vaccines for cancer, autoimmune, neurodegenerative, inflammation-driven disease, and novel pathogen infection treatment. PBIMA therapeutic design is multi-mechanistic and broad-spectrum.
Owner:NEO7BIOSCIENCE INC

Construction method, evaluation method and application of inflammatory nephropathy animal model

The invention relates to a construction method, an evaluation method and application of an inflammatory nephropathy animal model, and relates to the technical field of nephropathy animal model construction. The construction method comprises the steps that a CRIPSR / Cas9 system is adopted to shear a first targeting site on an Smu region of a mouse immune globulin gene, and a second targeting site on an Sgamma2c region of the mouse immune globulin gene is sheared, so that a base sequence between the first targeting site and the second targeting site is knocked out, and the inflammatory nephropathy animal model is obtained. The application comprises an application of the inflammatory nephropathy animal model constructed by the construction method in screening drugs for treating inflammatory nephropathy and an application in researching a molecular mechanism of occurrence and development of inflammatory nephropathy.
Owner:SHANGHAI SCI-TECH INNO CENTER FOR INFECTION & IMMUNITY +2

DNA encoding method, decoding method, device, electronic device, and medium

The present application relates to a DNA encoding method, decoding method, device, electronic device and medium. The method includes: obtaining binary data to be encoded; grouping the binary data to obtain a plurality of binary data groups; for each binary data group, when the first binary bit of the binary data group is 0, obtaining a preset first mapping table; encoding the binary data group into corresponding base units according to the preset first mapping table; when the first binary bit of the binary data group is 1, obtaining a preset second mapping table; encoding the binary data group into corresponding base units according to the preset second mapping table; merging the corresponding base units of each binary data group to obtain a base sequence corresponding to the binary data, thereby improving the accuracy of DNA synthesis and sequencing.
Owner:SOUTH CHINA NORMAL UNIV