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1443 results about "Marker gene" patented technology

In biology, a marker gene may have several meanings. In nuclear biology and molecular biology, a marker gene is a gene used to determine if a nucleic acid sequence has been successfully inserted into an organism's DNA. In particular, there are two sub-types of these marker genes: a selectable marker and a marker for screening. In metagenomics and phylogenetics, a marker gene is an orthologous gene group which can be used to delineate between taxonomic lineages.

Maize L3 oleosin promoter

The present invention provides methods and compositions for the identification of transgenic seeds. This is accomplished by use of screenable markers linked to aleurone-specific promoters. The screenable markers can be provided as gene fusions with selectable markers, allowing both selection and screening of transformants. The use of aleurone-specific promoters, which also direct expression in embryogenic tissues, allows efficient selection of transgenic cells and the screening of viable transgenic seeds, while avoiding the deleterious effects associated with constitutive expression of screenable marker genes. Screening of transgenic seeds avoids the need for growing and assaying of seeds for transgenes and allows implementation of automated seed screening techniques for the identification of transgenic seeds.
Owner:DEKALB GENETICS CORPORATION +1

Plant breeding method

Methods for using genetic marker genotype (e.g., gene sequence diversity information) to improve the process of developing plant varieties (e.g., single cross hybrids) with improved phenotypic performance are provided. Methods for predicting the value of a phenotypic trait in a plant are provided. The methods use genotypic, phenotypic, and optionally family relationship information for a first plant population to identify an association between at least one genetic marker and the phenotypic trait, and then use the association to predict the value of the phenotypic trait in one or more members of a second, target population of known marker genotype. Methods for identifying new allelic variants affecting the trait are also provided. Plants selected, provided, or produced by any of the methods herein, transgenic plants created by any of the methods herein, and digital systems for performing the methods herein are also provided.
Owner:EI DU PONT DE NEMOURS & CO +1

Indexed library of cells containing genomic modifications and methods of making and utilizing the same

Methods and vectors (both DNA and retroviral) are provided for the construction of a Library of mutated cells. The Library will preferably contain mutations in essentially all genes present in the genome of the cells. The nature of the Library and the vectors allow for methods of screening for mutations in specific genes, and for gathering nucleotide sequence data from each mutated gene to provide a database of tagged gene sequences. Such a database provides a means to access the individual mutant cell clones contained in the Library. The invention includes the described Library, methods of making the same, and vectors used to construct the Library. Methods are also provided for accessing individual parts of the Library either by sequence or by pooling and screening. The invention also provides for the generation of non-human transgenic animals which are mutant for specific genes as isolated and generated from the cells of the Library.
Owner:LEXICON PHARM INC

Method of targeted gene disruption, genome of hyperthermostable bacterium and genome chip using the same

It is intended to provide an efficient and sure gene targeting method embodied at an arbitrary position in the genome of an organism and a kit therefor. It is also intended to provide a method for targeted-disruption of an arbitrary gene in the genome of an organism which comprises: 1) the step of providing the whole sequencial data of the genome of the organism; 2) the step of selecting at least one arbitrary region in the sequence; 3) the step of providing a vector containing a sequence homologous with the region selected above and a marker gene; 4) the step of transforming the organism by the vector; and 5) the step of providing the organism under such conditions as allowing homologous recombination. Moreover, the genome of a hyperthermostable bacterium and its array are provided.
Owner:JAPAN SCI & TECH CORP

Medical device with coating for capturing genetically-altered cells and methods for using same

InactiveUS20050025752A1Good biocompatibilityDecreases or inhibits tissue-based excessive intimal hyperplasia and restenosisBiocideMaterial nanotechnologyAntigenProgenitor
Therapeutic and drug delivery systems are provided in the form of medical devices with coatings for capturing and immobilizing target cells such as circulating progenitor or genetically-altered mammalian cells in vivo. The genetically-altered cells are transfected with genetic material for expressing a marker gene and a therapeutic gene in a constitutively or controlled manner. The marker gene is a cell membrane antigen not found in circulating cells in the blood stream and therapeutic gene encodes a peptide for the treatment of disease, such as, vascular disease and cancer. The coating on the medical device may be a biocompatible matrix comprising at least one type of ligand, such as antibodies, antibody fragments, other peptides and small molecules, which recognize and bind the target cells. The therapeutic and / or drug delivery systems may be provided with a signal source such as activator molecules for stimulating the modified cells to express and secrete the desired marker and therapeutic gene products.
Owner:ORBUSNEICH MEDICAL PTE LTD

Methods of testing for bronchial asthma or chronic obstructive pulmonary disease

An objective of the present invention is to provide a method of testing for bronchial asthma or chronic obstructive pulmonary disease, a method of screening for candidate compounds for treating bronchial asthma or chronic obstructive pulmonary disease, and a pharmaceutical agent for treating bronchial asthma or chronic obstructive pulmonary disease. The present invention identified genes whose expression levels varied between respiratory epithelial cells that had been stimulated by IL-13 to induce the goblet cell differentiation, and unstimulated respiratory epithelial cells. The respiratory epithelial cells were cultured according to the air interface method. The genes were revealed to be useful as markers for testing for bronchial asthma or chronic obstructive pulmonary disease and screening for therapeutic agents for such diseases. Specifically, the present invention provides methods of testing for bronchial asthma or chronic obstructive pulmonary disease and methods of screening for compounds to treat the diseases based on the comparison of the expression levels of marker genes identified as described above.
Owner:GENOX RES

Molecular method for diagnosis of colon cancer

InactiveUS20080050723A1Microbiological testing/measurementCore needleNormal colon
Methods for diagnosing or detecting cancerous colon tissue. A panel of 21 specific marker genes are provided. The overexpression of some of these marker genes compared to their expression in normal colon tissue and the underexpression of the rest of these marker genes are indicative of cancerous colon tissue. By using these 21 marker genes as a diagnostic tool, smaller tissue samples, such as those obtained by core needle biopsies and from patient stool samples, can be used.
Owner:NAT RES COUNCIL OF CANADA

Vector capable for transformation of labyrinthulomycota

An object of the present invention is to provide a transformation system for Labyrinthulomycota that allows the elucidation of biosynthetic mechanisms of lipids such as PUFA and carotenoids as well as for the construction of a high production system and the design and development of novel functional lipid molecules by the control of the mechanisms. The present invention provides a vector for the transformation of Labyrinthulomycota with a transgene, which comprises at least (1) a nucleotide sequence which is homologous to a part of chromosomal DNA of Labyrinthulomycota and is capable of homologous recombination with the chromosomal DNA, (2) a selection marker gene having a promoter sequence located upstream and a terminator sequence located downstream, and (3) a cloning site for transgene insertion having a promoter sequence located upstream and a terminator sequence located downstream.
Owner:FUJIFILM CORP +1

Insect bioreactor expressing multiple exogenous genes and its construction method and application

The invention discloses an insect bioreactor capable of expressing multiple exogenous genes, and a construction method and application thereof. The construction method comprises the following steps: (1) introducing multicopy high-efficiency bacteria DNA (deoxyribonucleic acid) replication initiator into chitinase and cysteine proteinase genes of a baculovirus genome to obtain a baculovirus shuttle plasmid; (2) replacing virus duplicated essential gene downstream the polyhedrosis gene of the baculovirus shuttle plasmid with antibiotic gene to obtain a baculovirus plasmid DNA; and (3) replacingother virus duplicated and infected nonessential genes in the baculovirus shuttle plasmid with reverse selection marker gene to obtain the insect bioreactor. The antibiotic gene or reverse selection marker gene in the insect bioreactor which is constructed by replacing the exogenous target genes can express multiple exogenous genes in a host insect or insect cell. The insect bioreactor disclosed by the invention can efficiently expressing one or more exogenous genes in an insect body at the same time, and can produce massive recombinant proteins at low cost.
Owner:THE INST OF BIOTECHNOLOGY OF THE CHINESE ACAD OF AGRI SCI

Indexed library of cells containing genomic modifications and methods of making and utilizing the same

Methods and vectors (both DNA and retroviral) are provided for the construction of a Library of mutated cells. The Library will preferably contain mutations in essentially all genes present in the genome of the cells. The nature of the Library and the vectors allow for methods of screening for mutations in specific genes, and for gathering nucleotide sequence data from each mutated gene to provide a database of tagged gene sequences. Such a database provides a means to access the individual mutant cell clones contained in the Library. The invention includes the described Library, methods of making the same, and vectors used to construct the Library. Methods are also provided for accessing individual parts of the Library either by sequence or by pooling and screening. The invention also provides for the generation of non-human transgenic animals which are mutant for specific genes as isolated and generated from the cells of the Library.
Owner:LEXICON PHARM INC

Vector comprising a replication competent HIV-1 provirus and a heterologous gene

A vector comprising an HIV segment and a heterologous gene segment, which produces a replication competent and an infective HIV virus is disclosed. When the heterologous gene is a marker gene, the spread of the virus can be observed in both in vitro and in vivo systems. The use of this vector in establishing methods for screening anti-viral compounds is also disclosed.
Owner:DANA FARBER CANCER INST INC

Agrobacterium-mediated ustilago esculenta transformant strain as well as preparation method and application thereof

The invention relates to the field of biology breeding and in particular relates to an agrobacterium-mediated ustilago esculenta (Ustilago esculenta) transformant strain as well as a preparation method and application thereof. According to the agrobacterium-mediated ustilago esculenta transformant strain, an agrobacterium infected receptor of the transformant strain refers to ustilago esculenta (Ustilago esculenta). The method for preparing the agrobacterium-mediated ustilago esculenta transformant strain comprises the following steps: (1) preparing a fungal expression vector; (2) preparing agrobacterium competence; (3) performing electrotransformation on the agrobacterium; and (4) performing agrobacterium-mediated transformation, thereby obtaining the transformant. A complex protoplast is not needed, the receptor source is simple, and spores and hypha of the fungi can be directly used for transformation; and the transformation efficiency is high. In addition, the obtained transformant is large in single-copy ratio, and marker genes are conveniently obtained.
Owner:ZHEJIANG FORESTRY ACAD +1

Packaging cell

A virus-producing cell sustaining the ability to produce viruses at high titer is successfully constructed by expressing the virus structural gene under the regulation of EF1α promoter. In this virus-producing cell, the virus structural gene is ligated to a selection marker gene via IRES and domains other than the protein coding domain are eliminated from the DNA encoding virus structural proteins. Thus, reduction of the titer due to cell passages can be prevented and emergence of wild type viruses caused by unfavorable recombination of the virus genome can be inhibited.
Owner:CHUGAI PHARMA CO LTD

Recombinant DNA technology based information encrypting and hiding method and application

The invention provides a recombinant DNA technology based information encrypting and hiding method and an application. Firstly, a plain text is coded into a DNA sequence, preprocessing is carried out on the DNA sequence by adopting the encryption algorithm, and a pseudo-DNA segment is generated; and then the pseudo-DNA segment and a marker gene segment are connected to a DNA plasmid vector by using the restriction enzyme and the ligase, and an obtained recombinant plasmid is further hided into a germ body; finally, a cell which contains confidential information is hided into a large number of irrelevant pseudo-cells, and the hided cells can be screened out by the selective cultivation. The encrypting and hiding method is applied to the authentication and signature technology. Encrypting, hiding and transmitting of the confidential information are achieved, and the cracking difficulty of a system is enhanced.
Owner:ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY

Medical device with coating for capturing genetically-altered cells and methods for using same

InactiveUS20070191932A1Good biocompatibilityDecreases or inhibits tissue-based excessive intimal hyperplasia and restenosisStentsSurgeryDiseaseProgenitor
Therapeutic and drug delivery systems are provided in the form of medical devices with coatings for capturing and immobilizing target cells such as circulating progenitor or genetically-altered mammalian cells in vivo. The genetically-altered cells are transfected with genetic material for expressing a marker gene and at least one therapeutic gene in a constitutively or controlled manner. The marker gene is a cell membrane antigen not found in circulating cells in the blood stream and therapeutic gene encodes a peptide for the treatment of disease, such as, vascular disease and cancer. The coating on the medical device may be a biocompatible matrix comprising at least one type of ligand, such as antibodies, antibody fragments, other peptides and small molecules, which recognize and bind the target cells. The therapeutic and / or drug delivery systems may be provided with a signal source such as activator molecules for stimulating the modified cells to express and secrete the desired marker and therapeutic gene products.
Owner:ORBUSNEICH MEDICAL PTE LTD

Overexpression porcine co-stimulatory 4-1BB vector and application thereof

The invention provides an overexpression porcine co-stimulatory 4-1BB vector and application thereof. PCR (polymerase chain reaction) amplification is performed on a left homologous arm and a right homologous arm of an intron 1 of a rosa26 gene, a 4-1BB regulatory sequence and an OCT4 specific promoter; the left homologous arm, a 4-1BB expression cassette, LoxP locus-contained Cre and Neo expression cassettes, the right homologous arm and negative selection DTA diphtheria toxin are connected in sequence to obtain a 4-1BB homologous recombinant vector p4BOCNDR; the vector and a CRISPR / Cas9 (clustered regularly interspaced short palindromic repeats / CRISPR-associated) targeting vector of sgRNA (small guide ribonucleic acid) containing the intron 1 of the specific targeting porcine rosa26 gene are transferred together into a porcine fetus fibroblast; by taking a positive cell as a donor cell and an oocyte as a recipient cell, a cloned embryo is obtained through a somatic cell nuclear transfer technique; the cloned embryo is transplanted into a porcine uterus for fetation to obtain a transgenic pig integrating a 4-1BB gene at the fixed point of a first intron of the rosa26 gene and automatically deleting a marker gene.
Owner:CHINA AGRI UNIV

Methods and compositions for diagnosing gastrointestinal stromal tumors

The present invention relates to an in vitro method for diagnosing and / or monitoring in a subject a gastrointestinal stromal tumor or a predisposition to develop a gastrointestinal stromal tumor, comprising detecting and / or analyzing in a test sample derived from the subject one or more mutations at the DNA level in any one or both of the marker genes cKIT (GenBank acc. no. NM_000222.2) and PDGFRA (GenBank acc. no. NM_006206.4), wherein the DNA is circulating DNA, and wherein the presence of any one of the mutations detected in the test sample is indicative of a gastrointestinal stromal tumor or a predisposition to develop a gastrointestinal stromal tumor in the subject. The present invention is also directed to a corresponding kit-of-parts for diagnosing and / or monitoring a gastrointestinal stromal tumor or a predisposition to develop a gastrointestinal stromal tumor, comprising means for detecting and / or analyzing one or more mutations as defined herein, as well as to the use of one or more mutations as defined herein as a panel of molecular markers for diagnosing and / or monitoring a gastrointestinal stromal tumor or a predisposition to develop a gastrointestinal stromal tumor.
Owner:ALBERT LUDWIGS UNIV FREIBURG

Method for deleting selection marker gene of transgenic rice

The invention provides a method for deleting a selection marker gene of transgenic rice and belongs to the field of plant gene engineering. The method for efficiently deleting the marker gene of the transgenic rice in a plant level is established by utilizing a genome fixed-point editing technology mediated by a CRISPR / Cas9 system. The whole segment of the marker gene can be effectively deleted by utilizing the method, and only an expression frame of the marker gene is deleted pointedly without change of the expression of other components in the transgenic rice. Thus, the transgenic rice without the selection marker gene can be efficiently bred by utilizing the method, so that the safety doubt of people about the selection marker gene can be completely removed.
Owner:RICE RES ISTITUTE ANHUI ACAD OF AGRI SCI

Construction and application of CRISPR/Cas9 gene editing vector for microorganisms

The invention discloses construction and application of a CRISPR / Cas9 gene editing vector for microorganisms. The constructed CRISPR / Cas9 gene vector consists of a replication start site, a selection marker gene, a Cas9 protein gene, gRNA coding DNA, a homologous recombinant element and an operon. The CRISPR / Cas9 gene vector constructed by the invention is capable of editing (including performing such operations as knocking out, replacing, interpolating and the like on gene or DNA sequence) escherichia coli or corynebacterium glutamicum genome; and the gene vector has the advantages of being short in test cycle, time-saving and cost-saving, high in efficiency and the like.
Owner:TIANJIN INST OF IND BIOTECH CHINESE ACADEMY OF SCI

Novel Selectable Marker Genes

The subject invention relates to a novel gene referred to herein as DSM-2. This gene was identified in Sterptomyces coelicolor A3. The DSM-2 protein is distantly related to PAT and BAR. The subject invention also provides plant-optimized genes encoding DSM-2 proteins, DSM-2 can be used as a transgenic trait to impart tolerance in plants and plant cells to the herbicides glufosinate and bialaphos. One preferred use of the subject genes are as selectable markers. The use of this gene as a selectable marker in a bacterial system can increase efficiency for plant transformations. Use of DSM-2 as the sole selection marker eliminates the need for an additional medicinal antibiotic marker (such as ampicillin resistance) during cloning. Various other uses are also possible according to the subject invention.
Owner:CORTEVA AGRISCIENCE LLC

Medical device with coating for capturing genetically-altered cells and methods of using same

InactiveUS20060121012A1Good biocompatibilityDecreases or inhibits tissue-based excessive intimal hyperplasia and restenosisBiocideSurgeryAntigenProgenitor
Therapeutic and drug delivery systems are provided in the form of medical devices with coatings for capturing and immobilizing target cells such as circulating progenitor or genetically-altered mammalian cells in vivo. The genetically-altered cells are transfected with genetic material for expressing a marker gene and at least one therapeutic gene in a constitutively or controlled manner. The marker gene is a cell membrane antigen not found in circulating cells in the blood stream and therapeutic gene encodes a peptide for the treatment of disease, such as, vascular disease and cancer. The coating on the medical device may be a biocompatible matrix comprising at least one type of ligand, such as antibodies, antibody fragments, other peptides and small molecules, which recognize and bind the target cells. The therapeutic and / or drug delivery systems may be provided with a signal source such as activator molecules for stimulating the modified cells to express and secrete the desired marker and therapeutic gene products.
Owner:ORBUSNEICH MEDICAL PTE LTD

Single guide ribonucleic acid (sgRNA) capable of effectively editing pig ROSA26 gene, and application of sgRNA

The invention discloses single guide ribonucleic acid (sgRNA) capable of effectively editing a pig ROSA26 gene, and application of the sgRNA. Based on the sgRNA capable of specifically identifying the pig ROSA26 gene in a pig genome, a cell line of enhanced green fluorescent protein (EGFP) site-specific integrated porcine fetal fibroblasts is successfully established by using a CRISPR / Cas9-mediated gene knock-in technique; the results show that the cell line can stably and efficiently express an EGFP gene; furthermore, in the preparation process of the cell line, exogenous promoter genes and positive and negative screening marker genes are not introduced into the cell line. Therefore, the sgRNA greatly improves the safety of transgenic pigs, and has important significance for eliminating the biological and food potential safety hazards of agricultural products of the transgenic pigs.
Owner:重庆吉渝科技有限公司

Leukemia stem cell markers

The invention provides a test method for predicting the initial onset or a recurrence of acute myeloid leukemia (AML) comprising (1) measuring the expression level of human leukemic stem cell (LSC) marker genes in a biological sample collected from a subject for a transcription product or translation product of the gene as an analyte and (2) comparing the expression level with a reference value; an LSC-targeting therapeutic agent for AML capable of suppressing the expression of a gene selected from among LSC marker genes or a substance capable of suppressing the activity of a translation product of the gene; a method for producing a sample containing hematopoietic cells for autologous transplantation or allogeneic transplantation for AML patients comprising obtaining an LSC-purged sample with at least 1 kind of LSC marker as an index; and a method of preventing or treating AML.
Owner:RIKEN

Multi-gene classifiers and prognostic indicators for cancers

The present invention relates to the identification of marker genes useful in the diagnosis and prognosis of clinically problematic subsets of primary breast cancers. More specifically, the invention relates to the identification of two sets of marker genes that are differentially expressed in and useful for the diagnosis and prognosis of subsets of hormone receptor-negative (HRneg; i.e., ER and PR negative) and triple-negative (Tneg; i.e., ER, PR and HER2 negative) primary breast cancers at highest risk for early metastatic relapse. The invention further provides methods for determining the best course of treatment for patients having one of these clinically problematic subsets of primary breast cancers. The invention also provides methods for identifying compounds that prevent or treat a subtype of breast cancer based on their ability to modulate the activity or expression level of one or more marker genes identified herein.
Owner:RGT UNIV OF CALIFORNIA +1

Physiogenomic method for predicting response to diet

The present invention relates to the use of genetic variants of associated marker genes to predict an individual's response to diet. The present invention further relates to analytical assays and computational methods using the novel marker gene set. The present invention has utility for developing personalized diet regimens to optimize physiological response, including changes in body mass index (BMI) and blood lipid and triglyceride levels.
Owner:GENOMAS

Systems for gene targeting and producing stable genomic transgene insertions

The novel germ-line transformation systems disclosed in this patent application allow the physical deletion of transposon DNA following the transformation process, and the targeting of transgene integrations into predefined target sites. In this way, transposase-mediated mobilization of genes-of-interest is excluded mechanistically and random genomic integrations eliminated. In contrast to conventional germ-line transformation technology, our systems provide enhanced stability to the transgene insertion. Furthermore, DNA sequences required for the transgene modification (e.g. transformation marker genes, transposase or recombinase target sites), are largely removed from the genome after the final transgene insertion, thereby eliminating the possibility for instability generated by these processes. The RMCE technology, which is disclosed in this patent application for invertebrate organisms (exemplified in Drosophila melanogaster) represents an extremely versatile tool with application potential far beyond the goal of transgene immobilization. RMCE makes possible the targeted integration of DNA cassettes into a specific genomic loci that are pre-defined by the integration of the RMCE acceptor plasmid. The loci can be characterized prior to a targeting experiment allowing optimal integration sites to be pre-selected for specific applications, and allowing selection of host strains with optimal fitness. In addition, multiple cassette exchange reactions can be performed in a repetitive way where an acceptor cassette can be repetitively exchanged by multiple donor cassettes. In this way several different transgenes can be placed precisely at the same genomic locus, allowing, for the first time, the ability to eliminate genomic positional effects and to comparatively study the biological effects of different transgenes.
Owner:HORN CARSTEN +1

Method of screening multiply transformed cells using bicistronic expression of fluorescent proteins

A method of screening multiply transformed / transfected cells to identify those cells expressing at least two peptides or proteins of interest. The method comprising: 1. Simultaneously or sequentially transforming a cell with at least two different expression cassettes in which the gene of interest is linked via an IRES to a fluorescent marker gene. Each marker gene is different. 2. Providing conditions in which expression of the genes will occur. 3. Identifying cells expressing proteins by detecting the different fluorescent signals.
Owner:NEWSOUTH INNOVATIONS PTY LTD

Marker for detecting mesenchymal stem cell and method of distinguishing mesenchymal stem cell using the marker

The present invention provides a marker for detecting, separating / distinguishing a mesenchymal stem cell and a method for detecting, separating / distinguishing a mesenchymal stem cell by using the marker. A gene shown in the sequence listing is expressed specifically in a mesenchymal stem cell. The present invention comprises use of the gene as a marker for detecting mesenchymal stem cells. In addition, the present invention comprises a probe for detecting the mesenchymal stem cell marker gene and a PCR primer for amplifying the gene in a test cell in detecting the mesenchymal stem cell gene marker, and further comprises a polypeptide marker for detecting mesenchymal stem cells comprising a polypeptide wherein the mesenchymal stem cell marker gene of the present invention is expressed, an antibody for detecting the polypeptide marker which specifically binds to the polypeptide marker, and still further, a method for distinguishing and separating a mesenchymal stem cell by using a probe for detecting the mesenchymal stem cell marker gene, and an antibody which specifically binds to a polypeptide marker.
Owner:JAPAN SCI & TECH CORP +2

CRISPR/Cas9 technology mediated down producing goat VEGF gene fixed-point knock-in method

The invention provides a method for finishing down producing goat VEGF gene fixed-point knock-in mediated by a CRISPR / Cas9 system. The method comprises the following steps: establishing a gRNA expression vector and a VEGF homologous recombination vector on the basis of the CRISPR / Cas9 system according to a CCR5 gene sequence of down producing goats; then jointly transferring three optimized vectors into fibroblasts of down producing goat fetuses to obtain VEGF gene fixed-point knocked-in positive cells; and preparing VEGF gene fixed-point integrated down producing goats by using a somatic nuclear transfer technology. The established targeting vector based on the CRISPR / Cas9 system provides a simple, rapid and safe path for fixed-point knock-in of goat VEGF genes. The method does not involve any screening marker genes in a cell line screening process, therefore, the safety of transgenic animals is greatly improved, and the method has high value on research of genetic breeding and gene functions of down producing goats.
Owner:INNER MONGOLIA UNIVERSITY
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