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    • 10. 发明申请
    • REGULATORY NUCLEIC ACID ELEMENTS
    • 法规核酸元素
    • US20100311121A1
    • 2010-12-09
    • US12842468
    • 2010-07-23
    • Barbara ENENKELKerstin SAUTTER
    • Barbara ENENKELKerstin SAUTTER
    • C12N15/85C07H21/04C12N5/10C12N15/09C12P21/00
    • C12N15/85C07K14/47C12N15/63C12N2800/107C12N2830/46C12N2830/85
    • The invention relates to DNA-sequences, especially transcription- or expression-enhancing elements (TE elements) and their use on an expression vector in conjunction with an enhancer, a promoter, a product gene and a selectable marker.The invention describes Sequence No. 1 and TE elements TE-01, -02, -03, -04, -06, -07, -08, -10, -11 or -12. Because of their small size, TE-06, TE-07 or TE-08 are particularly preferred. Sequence No. 1 originates from a sequence region located upstream from the coding region of the Ub/S27a gene from CHO cells.TE elements bring about an increase in the expression of the product gene, particularly when stably integrated in the eukaryotic genome, preferably the CHO-DG44 genome. Chromosomal positional effects are thereby overcome, shielded or cancelled out. In this way the proportion of high producers in a transfection mixture and also the absolute expression level are increased up to seven-fold.
    • 本发明涉及DNA序列,特别是转录或表达增强元件(TE元件)及其与表达载体结合增强子,启动子,产物基因和选择性标记的用途。 本发明描述了序列号1和TE元件TE-01,-02,-03,-04,-06,-07,-08,-10,-11或-12。 由于TE-06,TE-07或TE-08的尺寸较小,因此特别优选。 序列号1来自位于CHO细胞的Ub / S27a基因的编码区上游的序列区。 TE元件导致产物基因的表达增加,特别是当稳定整合在真核基因组中时,优选CHO-DG44基因组。 因此克服,屏蔽或抵消染色体位置效应。 以这种方式,转染混合物中高生产者的比例和绝对表达水平提高了七倍。