![丙型肝炎病毒(HCV)细胞进入抑制肽ZTE1序列及应用](/CN/2014/1/41/images/201410206247.jpg)
基本信息:
- 专利标题: 丙型肝炎病毒(HCV)细胞进入抑制肽ZTE1序列及应用
- 专利标题(英):Sequence of hepatitis c virus (HCV) cell-entrance-inhibiting peptide ZTE1 and application
- 申请号:CN201410206247.9 申请日:2014-05-16
- 公开(公告)号:CN104327170A 公开(公告)日:2015-02-04
- 发明人: 谭文杰 , 张玲 , 卢莎 , 邓瑶 , 陶格斯 , 刘晓明
- 申请人: 中国疾病预防控制中心病毒病预防控制所
- 申请人地址: 北京市昌平区昌百路155号中国疾控中心病毒病所
- 专利权人: 中国疾病预防控制中心病毒病预防控制所
- 当前专利权人: 中国疾病预防控制中心病毒病预防控制所
- 当前专利权人地址: 北京市昌平区昌百路155号中国疾控中心病毒病所
- 主分类号: C07K14/18
- IPC分类号: C07K14/18 ; A61K38/16 ; A61P31/14
The invention relates to a sequence of hepatitis c virus (HCV) cell-entrance-inhibiting peptides ZTE1 and an application. The peptides are synthesized on the basis of an amino acid sequence of an envelope protein E2 of an HCV genotype 2A reference strain JFH-1 (GenBank no.D95A86), wherein a purity of the peptides is more than 85%. Each peptide is composed of 15 amino acids (aa). Each two adjacent peptides have 10 overlapped amino acids. In the invention, two adjacent peptides, E2-42 and E2-43, which have amino acid sequences represented as the Seq ID:No.1 and the Seq ID:No.2 and are respectively located at the positions of 548aa-562aa and 552aa-566aa in a JFH-1E2 amino acid sequence. The 10 overlapped amino acids are named ZTE1 of which a sequence is represented as the Seq ID:No.3. Under a condition of a peptide usage amount being 5 nM, the two peptides can reach an HCV infection-inhibiting rate of 50%. In an experiment for researching an infection-inhibiting mechanism of the peptides, a result proves that when the peptides (10 nM) and the virus both exist, the peptides can effectively inhibit virus infection with an inhibiting ratio reaching about 90%. The experiment proves that the two peptides obtained in the invention works in a manner of a biological process of preventing the virus from entering cells.
IPC结构图谱:
C | 化学;冶金 |
--C07 | 有机化学 |
----C07K | 肽 |
------C07K14/00 | 具有多于20个氨基酸的肽;促胃液素;生长激素释放抑制因子;促黑激素;其衍生物 |
--------C07K14/005 | .来自病毒 |
----------C07K14/01 | ..DNA病毒 |
------------C07K14/18 | ...囊膜病毒科,例如黄热病病毒、瘟病毒、黄热病毒、C肝病毒,日本脑炎病毒 |