Expression of the gag gene of human T-cell leukemia virus type I in Escherichia coli and its diagnostic use. 1985

S Itamura, and K Shigesada, and M Imai, and N Kobayashi, and T Hamakado, and T Harada, and M Hatanaka

An expression plasmid, pHY202, was constructed which directs the synthesis of a fusion protein encoded by the gag sequence of human T-cell leukemia virus type I (HTLV-I) inserted into the lacZ' gene. Escherichia coli cells harboring pHY202 produced the 43-kDal LacZ'-Gag fusion protein with a yield of approx. 0.3% of total soluble proteins. The fusion protein is specifically recognized by monoclonal antibodies against the Gag proteins p19 and p24, and could be applicable for the diagnosis of HTLV-I infection, because almost all sera from HTLV-I carriers gave a positive response in the enzyme-linked immunosorbent assay (ELISA) employing the LacZ'-Gag hybrid protein purified by immunoaffinity column chromatography.

UI MeSH Term Description Entries
D010957 Plasmids Extrachromosomal, usually CIRCULAR DNA molecules that are self-replicating and transferable from one organism to another. They are found in a variety of bacterial, archaeal, fungal, algal, and plant species. They are used in GENETIC ENGINEERING as CLONING VECTORS. Episomes,Episome,Plasmid
D004926 Escherichia coli A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc. Alkalescens-Dispar Group,Bacillus coli,Bacterium coli,Bacterium coli commune,Diffusely Adherent Escherichia coli,E coli,EAggEC,Enteroaggregative Escherichia coli,Enterococcus coli,Diffusely Adherent E. coli,Enteroaggregative E. coli,Enteroinvasive E. coli,Enteroinvasive Escherichia coli
D005786 Gene Expression Regulation Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control (induction or repression) of gene action at the level of transcription or translation. Gene Action Regulation,Regulation of Gene Expression,Expression Regulation, Gene,Regulation, Gene Action,Regulation, Gene Expression
D005814 Genes, Viral The functional hereditary units of VIRUSES. Viral Genes,Gene, Viral,Viral Gene
D005822 Genetic Vectors DNA molecules capable of autonomous replication within a host cell and into which other DNA sequences can be inserted and thus amplified. Many are derived from PLASMIDS; BACTERIOPHAGES; or VIRUSES. They are used for transporting foreign genes into recipient cells. Genetic vectors possess a functional replicator site and contain GENETIC MARKERS to facilitate their selective recognition. Cloning Vectors,Shuttle Vectors,Vectors, Genetic,Cloning Vector,Genetic Vector,Shuttle Vector,Vector, Cloning,Vector, Genetic,Vector, Shuttle,Vectors, Cloning,Vectors, Shuttle
D000914 Antibodies, Viral Immunoglobulins produced in response to VIRAL ANTIGENS. Viral Antibodies
D001616 beta-Galactosidase A group of enzymes that catalyzes the hydrolysis of terminal, non-reducing beta-D-galactose residues in beta-galactosides. Deficiency of beta-Galactosidase A1 may cause GANGLIOSIDOSIS, GM1. Lactases,Dairyaid,Lactaid,Lactogest,Lactrase,beta-D-Galactosidase,beta-Galactosidase A1,beta-Galactosidase A2,beta-Galactosidase A3,beta-Galactosidases,lac Z Protein,Protein, lac Z,beta D Galactosidase,beta Galactosidase,beta Galactosidase A1,beta Galactosidase A2,beta Galactosidase A3,beta Galactosidases
D012191 Retroviridae Proteins Proteins from the family Retroviridae. The most frequently encountered member of this family is the Rous sarcoma virus protein. Leukovirus Proteins,Retrovirus Proteins,Proteins, Leukovirus,Proteins, Retroviridae,Proteins, Retrovirus
D015683 Gene Products, gag Proteins coded by the retroviral gag gene. The products are usually synthesized as protein precursors or POLYPROTEINS, which are then cleaved by viral proteases to yield the final products. Many of the final products are associated with the nucleoprotein core of the virion. gag is short for group-specific antigen. Viral gag Proteins,gag Antigen,gag Gene Product,gag Gene Products,gag Polyproteins,gag Protein,gag Viral Proteins,Gene Product, gag,Retroviral Antigen gag Protein,gag Antigens,gag Gene Related Protein,gag Polyprotein,Antigen, gag,Antigens, gag,Polyprotein, gag,Polyproteins, gag,Protein, gag,Proteins, Viral gag,Proteins, gag Viral,Viral Proteins, gag,gag Proteins, Viral
D017977 Deltaretrovirus A genus in the family RETROVIRIDAE consisting of exogenous horizontally-transmitted viruses found in a few groups of mammals. Infections caused by these viruses include human B- or adult T-cell leukemia/lymphoma (LEUKEMIA-LYMPHOMA, T-CELL, ACUTE, HTLV-I-ASSOCIATED), and bovine leukemia (ENZOOTIC BOVINE LEUKOSIS). The type species is LEUKEMIA VIRUS, BOVINE. BLV-HTLV Viruses,HTLV Viruses,HTLV-BLV Viruses,Human T-Cell Leukemia Viruses,Human T-Cell Leukemia-Lymphoma Viruses,Leukemia Viruses, Human T-Cell,T-Cell Leukemia Viruses, Human,Human T Cell Leukemia Lymphoma Viruses,Human T Cell Leukemia Viruses,Leukemia Viruses, Human T Cell,T Cell Leukemia Viruses, Human,BLV HTLV Viruses,HTLV BLV Viruses

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