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    • 7. 发明申请
    • RNA POLYMERASE II CARBOXYL TERMINAL DOMAIN-DERIVED PEPTIDES
    • RNA聚合酶II羧基末端衍生的肽
    • WO9720031A2
    • 1997-06-05
    • PCT/US9619038
    • 1996-11-29
    • UNIV YALEWARREN STEPHEN L
    • WARREN STEPHEN L
    • A61K38/00A61K47/48C12N9/12C12N15/62C12N
    • C12N9/1247A61K38/00A61K47/62C07K2319/09C07K2319/43C07K2319/90C12N15/62
    • The targeting molecules described herein are derived from the RNA polymerase II carboxyl terminus, consisting of at least two to three hexapeptide repeats of the structure: YX1PX2X3PX4, where Y is tyrosine, P is proline, X can be any amino acid, and X1, X2 and X3 are most preferably serine or threonine, covalently conjugated to a bioactive molecule, most preferably an oligonucleotide, preferably via a linker consisting of one to two amino acids or a carbon chain of equivalent length attached using amide or disulfide chemistry to the tyrosine at the N-terminus of the peptide, leaving a free carboxyl. The peptide can be phosphorylated to alter the association with certain molecules in the nucleus, such as proteins having a serine/arginine motif and Sm snRNPs. For example, it is demonstrated that phosphorylated CTD-derived peptides bind to these nuclear proteins associated with transcription and splicing.
    • 本文描述的靶向分子衍生自RNA聚合酶II羧基末端,由至少两个至三个以下结构的六肽重复序列组成:YX1PX2X3PX4,其中Y是酪氨酸,P是脯氨酸,X可以是任何氨基酸,X 1,X 2 和X3最优选是丝氨酸或苏氨酸,共价结合生物活性分子,最优选寡核苷酸,优选通过由一至两个氨基酸组成的接头或使用酰胺或二硫化物化学连接到本发明的酪氨酸的等同长度的碳链 肽的N-末端,留下游离羧基。 肽可以被磷酸化以改变与核中的某些分子的关联,例如具有丝氨酸/精氨酸基序和Sm snRNP的蛋白质。 例如,证明磷酸化CTD衍生的肽与转录和剪接相关的这些核蛋白结合。