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    • 31. 发明申请
    • SEED SHATTERING
    • WO1997013865A1
    • 1997-04-17
    • PCT/EP1996004313
    • 1996-10-04
    • PLANT GENETIC SYSTEMS, N.V.ULVSKOV, PeterCHILD, RobinVAN ONCKELEN, HenriPRINSEN, ElsBORKHARDT, BernhardSANDER, LilliPETERSEN, MortenBUNDGARD POULSEN, GertBOTTERMAN, Johan
    • PLANT GENETIC SYSTEMS, N.V.
    • C12N15/82
    • C12N15/8249C12N9/2402C12N15/8206C12Y302/01015
    • A plant is provided which contains at least one dehiscence zone (DZ)-selective chimeric gene incorporated in the nuclear genome of its cells, wherein said DZ-selective chimeric gene comprises the following operably linked DNA fragments: a) a transcribed DNA region encoding: 1) a RNA which, when produced in cells of a particular DZ of the plant, prevents, inhibits or reduces the expression in said DZ cells of an endogenous gene of the plant encoding a cell wall hydrolase, particularly an endopolygalacturonase, or; 2) a protein or polypeptide, which when produced in said DZ cells, kills or disables them or interferes with their normal metabolism, physiology or development; b) a plant expressible promoter which directs expression of said transcribed DNA region at least in said DZ cells, provided that if said transcribed DNA region encodes a protein or polypeptide, or encodes an antisense RNA or ribozyme directed to a sense RNA encoded by an endogenous gene that is expressed in said plant in cells other than said DZ cells, said plant expressible promoter is a DZ-selective promoter, which directs expression of said transcribed region selectively in said DZ cells and wherein said plant is characterized by modified dehiscence properties, preferably delayed dehiscence, when compared to a plant not containing said DZ-selective chimeric gene.
    • 提供了一种植物,其包含并入其细胞的核基因组中的至少一个开裂区(DZ)选择性嵌合基因,其中所述DZ选择性嵌合基因包含以下可操作地连接的DNA片段:a)编码: 1)当在植物的特定DZ的细胞中产生时,RNA在编码细胞壁水解酶,特别是内聚半乳糖醛酸酶的植物的内源基因中预防,抑制或降低所述DZ细胞中的表达,或 2)蛋白质或多肽,当在所述DZ细胞中产生时,它们杀死或消灭它们或干扰其正常代谢,生理或发育; b)至少在所述DZ细胞中指导所述转录的DNA区域的表达的植物可表达启动子,条件是如果所述转录的DNA区编码蛋白质或多肽,或编码针对由内源性编码的正义RNA的反义RNA或核酶 所述植物可表达启动子是DZ选择性启动子,其指导所述转录区域在所述DZ细胞中的表达,并且其中所述植物的特征在于改性开裂特性,优选地, 与不含所述DZ选择性嵌合基因的植物相比时延迟裂开。
    • 40. 发明申请
    • A PROCESS FOR THE PRODUCTION OF BIOLOGICALLY ACTIVE PEPTIDE VIA THE EXPRESSION OF MODIFIED STORAGE SEED PROTEIN GENES IN TRANSGENIC PLANTS
    • 生物活性肽生产过程通过转基因植物修饰的储存种子蛋白基因的表达
    • WO1989003887A1
    • 1989-05-05
    • PCT/EP1988000944
    • 1988-10-20
    • PLANT GENETIC SYSTEMS N.V.VANDEKERCKHOVE, Joël, StefaanKREBBERS, EnnoBOTTERMAN, JohanLEEMANS, Jan
    • PLANT GENETIC SYSTEMS N.V.
    • C12P21/02
    • C12N15/8242C07K14/00C07K14/415C07K14/60C07K14/70C07K2319/02C12N15/8234C12N15/8251C12N15/8253C12N15/8254C12N15/8257
    • The invention pertains to a process for producing a determined polypeptide of interest or repeats thereof in a seed forming plant. It comprises: cultivating plants obtained from regenerated plant cells or from seeds of plants obtained from said regenerated plant cells over one or several generations, whose genetic patrimony, replicable with said plants, comprises a precursor-coding nucleic acid sequence encoding the precursor of a plant storage protein and placed under the control of a seed promoter, said precursor-coding nucleic acid being modified in a non-essential region of its relevant sequence which encodes the mature storage protein or a sub-unit thereof with a nucleic acid insert in appropriate reading phase relationship with the surrounding part of said relevant sequence, said insert including a determined segment encoding a heterologous determined polypeptide of interest or repeats thereof linked to each other and downstream and upstream thereof to the remainder parts of said relevant sequence through codons encoding aminoacid(s) which define selectively cleavable border sites surrounding the peptide of interest in the hybrid storage protein encoded by the so-modified relevant sequence of said precursor-coding nucleic acid; recovering the seeds of the cultivated plants and extracting the hybrid storage proteins contained therein; cleaving out the peptide of interest from said hybrid storage protein, purifying and recovering the peptide of interest. The polypeptide of interest may be a biologically active protein and/or a labeled protein.
    • 本发明涉及在种子形成植物中产生所确定的感兴趣的多肽或其重复序列的方法。 它包括:从一个或几代的再生植物细胞或从所述再生植物细胞获得的植物种子中培养植物,其遗传遗传可与所述植物复制,其包含编码植物前体的前体编码核酸序列 储存蛋白并置于种子启动子的控制之下,所述前体编码核酸在其相关序列的非必需区域中被修饰,所述相关序列编码成熟的存储蛋白或其亚单位,并以适当的读数与核酸插入片段 与所述相关序列的周围部分的相位关系,所述插入物包含编码异源确定的感兴趣的多肽或其重复的确定的片段,其通过编码氨基酸(s)的密码子彼此连接并连接到所述相关序列的其余部分 ),其定义了围绕肽的选择性可切割的边界位点 对由所述前体编码核酸的经修饰的相关序列编码的杂交储存蛋白的兴趣; 回收栽培植物的种子并提取其中所含的杂种储存蛋白; 从所述杂交储存蛋白中切出感兴趣的肽,纯化并回收目的肽。 感兴趣的多肽可以是生物活性蛋白质和/或标记的蛋白质。