PRODUCTION OF A TRANSGENIC AVIAN BY CYTOPLASMIC INJECTION
    3.
    发明公开
    PRODUCTION OF A TRANSGENIC AVIAN BY CYTOPLASMIC INJECTION 审中-公开
    转基因鸟生产中使用CYTOPLASMAINJEKTION

    公开(公告)号:EP1708564A4

    公开(公告)日:2007-03-07

    申请号:EP04749444

    申请日:2004-03-26

    申请人: AVIGENICS INC

    摘要: The invention provides methods for integrating a heterologous polynucleotide into the genome of an avian cell. The methods deliver to an avian cell a polynucleotide and a source of integrase activity that mediates recombination between the polynucleotide and the genomic DNA of the avian cell. The invention provides modified avian or artificial chromosomes as vectors to shuttle transgenes or gene clusters into an avian genome. Another aspect of the invention are avian cells genetically modified with a transgene vector. One cell line for the delivery and integration of a transgene comprises a heterologous attP site and, optionally, a region for expressing the integrase. Methods are also included for the production of a heterologous polypeptide by transgenic avian tissue involve integrating a heterologous polynucleotide into the avian genome. The present invention also relates to methods of producing transgenic chickens which include introducing into an avian cell a nucleic acid comprising a transgene and an integrase activity in addition to a cationic polymer and/or a nuclear localization signal and introducing the avian cell into a recipient avian wherein the recipient avian produces an offspring which includes the transgene. Also included are methods of dispersing a nucleic acid in a cell.

    PRODUCTION OF A TRANSGENIC AVIAN BY CYTOPLASMIC INJECTION
    6.
    发明公开
    PRODUCTION OF A TRANSGENIC AVIAN BY CYTOPLASMIC INJECTION 审中-公开
    转基因鸟生产中使用CYTOPLASMAINJEKTION

    公开(公告)号:EP1708564A2

    公开(公告)日:2006-10-11

    申请号:EP04749444.8

    申请日:2004-03-26

    申请人: Avigenics, Inc.

    IPC分类号: A01K67/00 C12N15/00

    摘要: The invention provides methods for integrating a heterologous polynucleotide into the genome of an avian cell. The methods deliver to an avian cell a polynucleotide and a source of integrase activity that mediates recombination between the polynucleotide and the genomic DNA of the avian cell. The invention provides modified avian or artificial chromosomes as vectors to shuttle transgenes or gene clusters into an avian genome. Another aspect of the invention are avian cells genetically modified with a transgene vector. One cell line for the delivery and integration of a transgene comprises a heterologous attP site and, optionally, a region for expressing the integrase. Methods are also included for the production of a heterologous polypeptide by transgenic avian tissue involve integrating a heterologous polynucleotide into the avian genome. The present invention also relates to methods of producing transgenic chickens which include introducing into an avian cell a nucleic acid comprising a transgene and an integrase activity in addition to a cationic polymer and/or a nuclear localization signal and introducing the avian cell into a recipient avian wherein the recipient avian produces an offspring which includes the transgene. Also included are methods of dispersing a nucleic acid in a cell.

    HIGH THROUGHPUT SCREENING ASSAY FOR DETECTING A DNA SEQUENCE
    9.
    发明公开
    HIGH THROUGHPUT SCREENING ASSAY FOR DETECTING A DNA SEQUENCE 审中-公开
    DNA序列筛选试验高通量检测

    公开(公告)号:EP1503627A2

    公开(公告)日:2005-02-09

    申请号:EP03724449.8

    申请日:2003-05-02

    申请人: Avigenics, Inc.

    发明人: HARVEY, Alex, J.

    IPC分类号: A21C11/16

    摘要: Genetic modification or selection of avians requires that large numbers of birds be genetically analyzed for sequences of interest. Typically, DNA is extracted on an individual basis from samples taken from the birds. Current methods of DNA extraction extract the DNA from blood or other tissue using tedious and time-consuming procedures. The present invention provides a high throughput screening assay for detecting a genetic sequence in multiple samples. The assay further provides a DNA extraction method that allows DNA to be extracted rapidly from multiple avian samples, such as red blood cells. The extraction method is extremely reliable and does not require that each sample be quantitated post-extraction. The extracted DNA can be used for a variety of genetic assays, including a high throughput screening assay to identify insertions of a transgene. The present invention is particularly useful for extracting DNA from nucleated RBCs. Therefore, the method can be applied towards genetic analysis of avians, fish, reptiles and amphibians.

    AVIAN LYSOZYME PROMOTER
    10.
    发明公开
    AVIAN LYSOZYME PROMOTER 审中-公开
    溶菌酶启动子在鸟类

    公开(公告)号:EP1478751A2

    公开(公告)日:2004-11-24

    申请号:EP02725432.5

    申请日:2002-03-29

    申请人: Avigenics, Inc.

    发明人: RAPP, Jeffrey, C.

    IPC分类号: C12N15/11

    摘要: The present invention provides novel isolated nucleic acids comprising an avian nucleic acid sequence encoding a lysozyme gene expression control region. The isolated nucleic acid of the present invention is useful for reducing the chromosomal positional effect of a transgene operably linked to the lysozyme gene expression control region and transfected into a recipient cell and allows expression of an operably linked heterologous nucleic acid insert in a transfected avian cells such as, for example, an oviduct cell. The isolated avian lysozyme of the present invention may be operably linked with a selected nucleic acid insert encoding a polypeptide desired to be expressed in a transfected cell. The recombinant DNA of the present invention may further comprise a polyadenylation signal sequence or a chicken lysozyme 3' domain.