319 results about "Enhancer" patented technology

The invention belongs to the field of molecular biology and relates to a high-activity T-cell promoter and an application thereof. Particularly, the high-activity T-cell promoter comprises an element 1 and an element 2, wherein the element 1 is an EF1 alpha promoter and/or an EF1 alpha promoter containing an intron; and the element 2 is any one or more of an mCMV promoter, an hCMV promoter and a CD3e promoter. The high-activity T-cell promoter provided by the invention can be used for efficiently expressing a foreign gene in a T cell, has a stable sequence and is free from sequence loss during the transfer process of a prokaryotic cell and a eukaryotic cell. The high-activity T-cell promoter is applicable to driving the high-efficiency expression of the foreign gene, especially a full-length antibody gene, in the T cell during the process of adoptive cellular immunotherapy.

The invention provides a protein synthesis efficiency enhancing RNA element and particularly discloses a nucleic acid structure formed by coding sequences of optional promoters, yeast-derived IRES enhancers (such as ScGPR1, ScFLO8, ScNCE102, ScMSN1, KlFLO8, KlNCE102 and KlMSN1) and heterologous proteins. By application of the nucleic acid structure to a yeast in-vitro protein synthesis system, thesynthesized luciferase activity RLU (relative light unit) is extremely high.

An isolated polynucleotide functional as a promoter in eukaryotic cells is disclosed. The isolated polynucleotide includes an endothelial specific enhancer element as detailed herein. Further disclosed is a method of expressing a nucleic acid sequence of interest in endothelial cells.

The invention relates to enhancer Hr3 adopting the nucleotide sequence shown in the SEQIDNO: 1. The enhancer Hr3 can be used for preparing and recombining heterologous protein by bombyx mori. The invention further relates to a recombination carrier containing the enhancer Hr3, and the recombination carrier is prepared in such a manner that the enhancer Hr3 is connected with a Nco1 restriction site at the upstream of a promoter of a carrier containing no enhancer through the Nco1 restriction site of the enhancer Hr3. In the invention, functional elements such as the first grade enhancer, activating transcription factor IE1, untranslated region sequences (5' UTR and 3' UTR) and the like which are expressed by intensifier are identified in the cellular level, and an efficient and stable sericin I expression system is built by integrating optimum elements on the basis, so that efficient expression recombination heterologous protein can be made of middle silk gland of transgenic bombyx mori.

A plasmid, viral or linear DNA molecule containing a nucleic acid sequence derived from the promoter region of the hCol1α2 gene, which is selectively transported into the nuclei of cells in the osteoblast lineage. The sequence can be used independently as a nuclear entry sequence only, and/or as a nuclear entry sequence without regard to position, in a vector or linear DNA that directs gene expression and nuclear entry. The disclosure further includes a chimeric DNA sequence derived by the addition of osteoblast-specific enhancer sequences to the nuclear entry sequence/promoter sequence, to increase osteoblast-specific expression while retaining osteoblast-specific nuclear import. An enhancer sequence is derived from the promoter region of the human Core Binding Factor alpha 1 (Cbfa1/Runx2) gene. The Cbfa1/Runx2 promoter can be added to the sequence derived from, or alternatively, comprising the promoter region of the hCol1α2 gene. Also provided are methods of use of the novel sequences.

The invention belongs to the field of a biology technology, and relates to an expression vector. The expression vector is an expression vector for insect, and contains an AcIE1 promoter of Autographa californica multicapsid nucleopolyhedrovirus (AcMNPV) and a hr5 enhancer of a homologous region 5 and an Opie2 promoter of Orgyia pseudotsugata multicapsid nuclear polyhedrosis virus (OpMNPV). An insect host cell containing the expression vector and a method for preparing a recombinant protein by using the expression vector are provided.

The invention discloses a DNA (Deoxyribose Nucleic Acid) with constitutive promoter activity, application of the DNA and a pichia pastoris expression vector. The DNA has a base sequence as shown in SEQ No.1 (Sequence Number); and the application of the DNA relates to the application of the DNA in construction of the pichia pastoris (Pinchia Pastoris) expression vector. The DNA disclosed by the invention has the constitutive promoter activity, and can activate the transcription of a downstream structural gene without an inductor; the transcriptional activity shows little change in four different culture mediums, namely, ethanol, methanol, glucose and glycerol; the promoter activity is efficient, and the efficiency of the initiation transcription is four times more than the pichia pastoris GAPDH (Reduced Glyceraldehyde-phosphate Dehydrogenase) promoter. The pichia pastoris expression vector, constructed by the DNA disclosed by the invention, can efficiently express the extrinsic protein without methanol induction, and the efficiency of expressing the extrinsic protein (Enhanced Green Fluorescent Protein) is about 6 to 8 times that of the expression system of the GAPDH promoter and 1.5 to 2 times that of the expression system of a TEF1 (Transcription Enhancer Factor 1) promoter.

The present invention generally relates to amplfication reactions. One aspect of the invention provides amplification reaction enhancer compositions comprising trehalose, carnitine, and a non-ionic detergent, such as NP40. These enhancer compositions can improve efficiency, specificity, and sensitivity of amplification reactions in conventional and real-time PCR and RT-PCR. In addition, these compositions permit nucleic acid amplification directly in crude samples containing blood, blood components, or soil extract with little or no nucleic acid extraction prior to amplification. Another aspect of the invention provides a method of enhancing an amplification reaction containing a crude blood sample with heparin. Another improvement derived from the invention is improved detection of difficult, high GC content nucleic acid targets.

The invention provides improved gene therapy methods and compositions.

The invention discloses an enhance-like element gene ER1 for enhancing foreign protein expression in prokaryotic cells. The enhance-like element gene has a nucleotide sequence as shown in SEQ ID NO: 1 (Sequence Identity No) or a truncated sequence of the nucleotide sequence, wherein the gene sequence is screened by establishing a fusion expression reporter gene recombinant vector; the fusion reporter gene consists of major capsid protein L1 gene of human papilloma virus and chloramphnicol acetyltransferase (CAT); the gene fragments to be selected are linked with the sieving recombinant vector and is transformed so as to establish a gene library; and the recombinant bacterial strain containing the enhance-like element gene sequence is screened based on the chloramphenicol resistance, so as to obtain the enhance-like element sequence which can improve the activity of chloramphenicol of the fusion reporter gene of the strain and promotes the foreign protein expression.

The subject invention provides a pharmaceutical composition comprising: an aqueous carrier; from 0.1 mg/ml to 20 mg/ml of the composition of a pharmaceutically acceptable salt of a) a peptide comprising at least 12 and at most 30 consecutive amino acids having a sequence corresponding to (i) a sequence of amino acids found within a complementarity-determining region (CDR) of a heavy or a light chain of a human monoclonal anti-DNA 16/6 Id antibody, or (ii) a sequence of amino acids found within a complementarity-determining region (CDR) of a heavy or a light chain of a pathogenic anti-DNA monoclonal antibody that induces a systemic lupus erythematosus (SLE)-like disease response in mice, or b) a peptide comprising consecutive amino acids having the sequence shown by any of SEQ ID NOS. 8-17, or c) a peptide comprising consecutive amino acids having a sequence of any of a) and b), or at least two of the sequences in (a) (i), (a) (ii) and (b)(i) through (b)(x), or d) a peptide comprising consecutive amino acids having a sequence comprising at least two identical sequences included in (a) (i), (a) (ii) and (b) (i) through (b) (x); and a solubility enhancer, wherein both the peptide and the solubility enhancer are dissolved in the aqueous carrier; and wherein the composition has a pH between 4 and 9, and a method of alleviating symptoms of SLE in a human by administering an effective amount of the composition.

The invention relates to an artificial sequence for increasing the methionine content of soy and a plant expression vector thereof, which solve the problem of the poor stability of the prior methods for increasing the methionine content of the soy in the prior transgenic technology. In the artificial sequence HSSP for increasing the methionine content of the soy of the invention, the sequence of the HSSP is shown as SEQ ID NO: 1. The plant expression vector of the artificial sequence for increasing the methionine content of the soy comprises the artificial sequence HSSP, wherein the upstream of the artificial sequence HSSP of the plant expression vector comprises an E12 enhancer sequence and a seed specific expression promoter PGY2, while the downstream comprises a Tnos terminator sequence. The technical scheme of the invention can be used for cultivating transgenic soy with high methionine content.

This invention relates to a composition comprising a recombinant or genetically engineered Rhabdovirus that expresses a Fusion Protein, such as the F protein of the Paramyxovirus SV5 strain. This recombinant Rhabdovirus may express other non-Rhabdovirus attachment proteins and/or an enhancer protein. The invention also relates to methods of making recombinant Rhabdoviruses which express an F Protein. These recombinant compositions can be used for purposes of research, as well as for diagnostic and therapeutic compositions for treatment of diseases.

The invention discloses a reconstructed human serum albumin gene suitable for cultivated silk gland expression and an expression system and application thereof. The reconstructed human serum albumin gene is as shown as the 7-1767th in SEQ ID NO.1, and the coded amino acid is as shown in SEQ ID NO.2. The reconstructed human serum albumin gene, a secretion type sericin 1 gene promoter and a secretion type sericin 1 gene terminator form an expression frame, an enhancer Hr3 is used for enhancing expression, and simultaneously a piggyBac transposon and a fluorescent screening marker gene construct an expression system. The expression system can highly effectively express recombined human serum albumin in cultivated silk gland, has biological activity, can be used for large scale production of recombined human serum albumin, and has good market prospect.

The present invention provides a lentiviral vector, and the lentiviral vector is obtained by inserting firefly luciferase coding gene sequence in the 2180bp of pLVX-IRES-ZsGreen1 lentiviral vector. The invention also relates to a host cell containing the lentiviral vector, a construction method of the lentiviral vector, and application of the lentiviral vector in analysis of function or regulation effect of mammalian cell promoters and / or enhancers. The lentiviral vector provides a fast, efficient, intuitive, simple and easy method for finding, analysis and application of target protein expression or expression level regulation promoters and / or enhancers.