申请人:Franklin and Marshall College
公开号:US07776535B2
公开(公告)日:2010-08-17
This invention relates, in part, to newly identified polynucleotides, polypeptides, variants and derivatives thereof; processes for making the polynucleotides and the polypeptides, and their variants and derivatives; and uses of the polynucleotides, polypeptides, variants and derivatives. The invention also relates to compositions of orthogonal aminoacyl-tRNA synthetases, and pairs of orthogonal aminoacyl-tRNA synthetases, and orthogonal tRNAs that incorporate fluorinated amino acids into proteins in response to selector codons. The present invention also includes translation biochemistry methods for site-specific incorporation of fluorinated amino acids, for example, 18F- or 19F-labelled amino acids, into proteins or peptides. Such amino acids may be used as an NMR probe for characterizing protein structure, dynamics, and reactivity or for radionuclide imaging (e.g., PET). Fluorinated amino acids may also be used to stabilize proteins or peptides.
本发明部分涉及新鉴定的多核苷酸、多肽、其变体和衍生物;制备多核苷酸和多肽及其变体和衍生物的方法;以及多核苷酸、多肽、其变体和衍生物的用途。本发明还涉及正交氨酰-tRNA合成酶的组成物,正交氨酰-tRNA合成酶对的组合,以及正交tRNA,其响应选择器密码子将氟化氨基酸并入蛋白质中。本发明还包括用于位点特异性合成氟化氨基酸的翻译生物化学方法,例如18F或19F标记的氨基酸,用于蛋白质或多肽中。这种氨基酸可以用作NMR探针,用于表征蛋白质结构、动力学和反应性或放射性核素成像(例如PET)。氟化氨基酸也可以用于稳定蛋白质或多肽。