Characterization of the zebrafish T cell receptor beta locus. 2010

Nathan D Meeker, and Alexandra C H Smith, and J Kimble Frazer, and Diana F Bradley, and Lynnie A Rudner, and Cynthia Love, and Nikolaus S Trede
Department of Pediatrics, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA. nathan.meeker@imail.org

Zebrafish (Danio rerio) has become an increasingly important model for immunological study. Its immune system is remarkably similar to that of mammals and includes both the adaptive and innate branches. Zebrafish T cells express functional T cell receptors (TCR), and all four TCR loci are present within the genome. Using 5'-rapid amplification of cDNA ends, we cloned and sequenced zebrafish TCRbeta transcripts. TCRbeta VDJ coding joints demonstrate conservation of mechanisms used by other vertebrate species to increase junctional diversity. Using the sequences obtained, along with previously published data, we comprehensively annotated the zebrafish TCRbeta locus. Overall, organization of the locus resembles that seen in mammals. There are 51 V segments, a single D segment, 27 Jbeta1 segments, a single Jbeta2 segment, and two constant regions. This description of the zebrafish TCRbeta locus has the potential to enhance immunological research in zebrafish and further our understanding of mammalian TCR repertoire generation.

UI MeSH Term Description Entries
D007135 Immunoglobulin Variable Region That region of the immunoglobulin molecule that varies in its amino acid sequence and composition, and comprises the binding site for a specific antigen. It is located at the N-terminus of the Fab fragment of the immunoglobulin. It includes hypervariable regions (COMPLEMENTARITY DETERMINING REGIONS) and framework regions. Variable Region, Ig,Variable Region, Immunoglobulin,Framework Region, Immunoglobulin,Fv Antibody Fragments,Fv Fragments,Ig Framework Region,Ig Variable Region,Immunoglobulin Framework Region,Immunoglobulin Fv Fragments,Immunoglobulin V,Antibody Fragment, Fv,Antibody Fragments, Fv,Fragment, Fv,Fragment, Fv Antibody,Fragment, Immunoglobulin Fv,Fragments, Fv,Fragments, Fv Antibody,Fragments, Immunoglobulin Fv,Framework Region, Ig,Framework Regions, Ig,Framework Regions, Immunoglobulin,Fv Antibody Fragment,Fv Fragment,Fv Fragment, Immunoglobulin,Fv Fragments, Immunoglobulin,Ig Framework Regions,Ig Variable Regions,Immunoglobulin Framework Regions,Immunoglobulin Fv Fragment,Immunoglobulin Variable Regions,Regions, Immunoglobulin Variable,Variable Regions, Ig,Variable Regions, Immunoglobulin
D011401 Promoter Regions, Genetic DNA sequences which are recognized (directly or indirectly) and bound by a DNA-dependent RNA polymerase during the initiation of transcription. Highly conserved sequences within the promoter include the Pribnow box in bacteria and the TATA BOX in eukaryotes. rRNA Promoter,Early Promoters, Genetic,Late Promoters, Genetic,Middle Promoters, Genetic,Promoter Regions,Promoter, Genetic,Promotor Regions,Promotor, Genetic,Pseudopromoter, Genetic,Early Promoter, Genetic,Genetic Late Promoter,Genetic Middle Promoters,Genetic Promoter,Genetic Promoter Region,Genetic Promoter Regions,Genetic Promoters,Genetic Promotor,Genetic Promotors,Genetic Pseudopromoter,Genetic Pseudopromoters,Late Promoter, Genetic,Middle Promoter, Genetic,Promoter Region,Promoter Region, Genetic,Promoter, Genetic Early,Promoter, rRNA,Promoters, Genetic,Promoters, Genetic Middle,Promoters, rRNA,Promotor Region,Promotors, Genetic,Pseudopromoters, Genetic,Region, Genetic Promoter,Region, Promoter,Region, Promotor,Regions, Genetic Promoter,Regions, Promoter,Regions, Promotor,rRNA Promoters
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D015027 Zebrafish An exotic species of the family CYPRINIDAE, originally from Asia, that has been introduced in North America. Zebrafish is a model organism for drug assay and cancer research. Brachydanio rerio,Danio rerio,B. rerio,D. rerio,Zebra Fish,Zebra Fishes,Zebra danio,Zebrafishes,D. rerios,Fishes, Zebra,Zebra danios,danio, Zebra
D016693 Receptors, Antigen, T-Cell, alpha-beta T-cell receptors composed of CD3-associated alpha and beta polypeptide chains and expressed primarily in CD4+ or CD8+ T-cells. Unlike immunoglobulins, the alpha-beta T-cell receptors recognize antigens only when presented in association with major histocompatibility (MHC) molecules. Antigen Receptors, T-Cell, alpha-beta,T-Cell Receptors alpha-Chain,T-Cell Receptors beta-Chain,T-Cell Receptors, alpha-beta,TcR alpha-beta,Antigen T Cell Receptor, alpha Chain,Antigen T Cell Receptor, beta Chain,Receptors, Antigen, T Cell, alpha beta,T Cell Receptors, alpha beta,T-Cell Receptor alpha-Chain,T-Cell Receptor beta-Chain,T-Cell Receptor, alpha-beta,T Cell Receptor alpha Chain,T Cell Receptor beta Chain,T Cell Receptor, alpha beta,T Cell Receptors alpha Chain,T Cell Receptors beta Chain,TcR alpha beta,alpha-Chain, T-Cell Receptor,alpha-Chain, T-Cell Receptors,alpha-beta T-Cell Receptor,alpha-beta T-Cell Receptors,alpha-beta, TcR,beta-Chain, T-Cell Receptor,beta-Chain, T-Cell Receptors
D050441 VDJ Exons Exons that are created in vivo during LYMPHOCYTE maturation from the V, D, and J gene segments of immunoglobulin superfamily genes (e.g., the IMMUNOGLOBULIN HEAVY CHAIN GENES, or the T-CELL RECEPTOR BETA GENES or T-CELL RECEPTOR GAMMA GENES ) by the VDJ RECOMBINASE system. VDJ Exon,V(D)J Exons,Exon, VDJ,Exons, VDJ
D021141 Nucleic Acid Amplification Techniques Laboratory techniques that involve the in-vitro synthesis of many copies of DNA or RNA from one original template. DNA Amplification Technic,DNA Amplification Technique,DNA Amplification Techniques,Nucleic Acid Amplification Technic,Nucleic Acid Amplification Technique,RNA Amplification Technic,RNA Amplification Technique,RNA Amplification Techniques,Amplification Technics, Nucleic Acid,Amplification Techniques, Nucleic Acid,DNA Amplification Technics,Nucleic Acid Amplification Technics,Nucleic Acid Amplification Test,Nucleic Acid Amplification Tests,RNA Amplification Technics,Technics, Nucleic Acid Amplification,Techniques, Nucleic Acid Amplification,Amplification Technic, DNA,Amplification Technic, RNA,Amplification Technics, DNA,Amplification Technics, RNA,Amplification Technique, DNA,Amplification Technique, RNA,Amplification Techniques, DNA,Amplification Techniques, RNA,Technic, DNA Amplification,Technic, RNA Amplification,Technics, DNA Amplification,Technics, RNA Amplification,Technique, DNA Amplification,Technique, RNA Amplification,Techniques, DNA Amplification,Techniques, RNA Amplification
D022801 Complementarity Determining Regions Three regions (CDR1; CDR2 and CDR3) of amino acid sequence in the IMMUNOGLOBULIN VARIABLE REGION that are highly divergent. Together the CDRs from the light and heavy immunoglobulin chains form a surface that is complementary to the antigen. These regions are also present in other members of the immunoglobulin superfamily, for example, T-cell receptors (RECEPTORS, ANTIGEN, T-CELL). Complementarity Determining Region,Complementarity Determining Region 1,Complementarity Determining Region 2,Complementarity Determining Region 3,Complementarity Determining Region I,Complementarity Determining Region II,Complementarity Determining Region III,Complementarity-Determining Region,Complementarity-Determining Region 3,Hypervariable Region, Immunoglobulin,Hypervariable Regions, Immunoglobulin,Third Complementarity-Determining Region,Complementarity-Determining Region 3s,Complementarity-Determining Region, Third,Complementarity-Determining Regions,Complementarity-Determining Regions, Third,Immunoglobulin Hypervariable Region,Immunoglobulin Hypervariable Regions,Region, Complementarity Determining,Region, Immunoglobulin Hypervariable,Regions, Complementarity Determining,Regions, Complementarity-Determining,Regions, Immunoglobulin Hypervariable,Third Complementarity Determining Region,Third Complementarity-Determining Regions
D029961 Zebrafish Proteins Proteins obtained from the ZEBRAFISH. Many of the proteins in this species have been the subject of studies involving basic embryological development (EMBRYOLOGY). Brachydanio rerio Proteins,Danio rerio Proteins,Zebra Danio Proteins,Zebra Fish Proteins

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