发明名称 |
T7 phage peptide display system and uses thereof |
摘要 |
A bacteriophage T7 display vector for expressing and displaying an exogenous peptide, wherein the display vector comprises a polynucleotide encoding a bacteriophage T7 tail fiber protein p17 in which a hepatocyte-targeting determinant sequence is inactivated, and wherein a cloning site is contained in a coding sequence for the tail fiber protein p17 or in a coding sequence for a capsid protein p10B. Also provided are a host cell containing the display vector as described above, a bacteriophage T7 particle comprising at least one copy of a p17 protein which comprises an exogenous peptide displayed thereon, or at least one copy of a p10 protein with an exogenous peptide displayed thereon, wherein a hepatocyte-targeting determinant sequence on the bacteriophage T7 tail fiber protein p17 is inactivated. The present invention further provides a viral lysate containing assembled bacteriophage T7 particle described above, and a method for determining if a candidate peptide is a liver-targeting peptide, or for screening for liver targeting peptides. |
申请公布号 |
US9217145(B2) |
申请公布日期 |
2015.12.22 |
申请号 |
US200812121176 |
申请日期 |
2008.05.15 |
申请人 |
Wisconsin Alumni Research Foundation |
发明人 |
Sokoloff Alexander V.;Wolff Jon Asher;Ludtke James John |
分类号 |
A01K67/027;C12N15/00;C12Q1/70;C12N15/10;C07K14/005 |
主分类号 |
A01K67/027 |
代理机构 |
Miller Canfield |
代理人 |
Li Kening;Miller Canfield |
主权项 |
1. A bacteriophage T7 display vector for expressing and displaying a first exogenous peptide encoded by a first exogenous polynucleotide, wherein the bacteriophage T7 display vector comprises a first coding sequence which encodes a bacteriophage T7 tail fiber protein p17, and wherein the first coding sequence comprises the nucleotide sequence of SEQ ID NO: 12 or SEQ ID NO: 13 and contains a first cloning site for insertion of the first exogenous polynucleotide sequence. |
地址 |
Madison WI US |