发明申请
WO2003097674A1 A PURIFIED POLYPEPTIDE, ISOLATED NUCLEIC ACIDS ENCODING SAID POLYPEPTIDE, VECTORS AND USE THEREOF
审中-公开
基本信息:
- 专利标题: A PURIFIED POLYPEPTIDE, ISOLATED NUCLEIC ACIDS ENCODING SAID POLYPEPTIDE, VECTORS AND USE THEREOF
- 专利标题(中):纯化多肽,分离的核酸编码上述多肽,载体及其用途
- 申请号:PCT/DK2003/000326 申请日:2003-05-15
- 公开(公告)号:WO2003097674A1 公开(公告)日:2003-11-27
- 发明人: PEDERSEN, Finn, Skou , DUCH, Mogens, Ryttergaard , BAHRAMI, Shervin
- 申请人: PIPELINE BIOTECH A/S , PEDERSEN, Finn, Skou , DUCH, Mogens, Ryttergaard , BAHRAMI, Shervin
- 申请人地址: Røvedvej 1, DK-8380 Trige DK
- 专利权人: PIPELINE BIOTECH A/S,PEDERSEN, Finn, Skou,DUCH, Mogens, Ryttergaard,BAHRAMI, Shervin
- 当前专利权人: PIPELINE BIOTECH A/S,PEDERSEN, Finn, Skou,DUCH, Mogens, Ryttergaard,BAHRAMI, Shervin
- 当前专利权人地址: Røvedvej 1, DK-8380 Trige DK
- 代理机构: PLOUGMANN & VINGTOFT A/S
- 优先权: DKPA 20020517
- 主分类号: C07K14/15
- IPC分类号: C07K14/15
摘要:
The present invention relates to a purified polypeptide, which is capable of mediating infection of a cell, by use of the polytropic/xenotropic receptor encoded by the Rmc1 locus from a NIH Swiss inbred NFS/N mouse for entry, and unable of mediating infection of a cell by use of a human polytropic/xenotropic receptor encoded by the human RMC1 locus. The present invention especially relates to an envelope protein from the Murine Leukaemia Virus (MLV) strain SL3-2, which is capable of infecting murine cells through usega of the polytropic receptor encoded by the Rmc1 locus, but lacks the ability of infecting human cells expressing the corresponding xenotropic receptor encoded by the RMC1 locus. The present invention furthermore demonstrate that replacements of at least one specified amino acid in the polypeptide can alter the tropism and enable the SL3-2 envelope to infect a human cell by use of the human polytropic/xenotropic receptor encoded by the RMC1 locus for entry.
摘要(中):
本发明涉及能够介导细胞感染的纯化多肽,其通过使用由NIH Swiss近交NFS / N小鼠的Rmc1基因座编码的多角体/异向受体进入,并且不能介导 通过使用由人RMC1基因座编码的人多变性/间接受体的细胞。 本发明特别涉及来自鼠白血病病毒(MLV)株SL3-2的包膜蛋白,其能够通过使用由Rmc1基因座编码的多角体受体感染鼠细胞,但缺乏感染人细胞表达的能力 由RMC1基因座编码的相应的异向受体。 本发明进一步证明,多肽中至少一个特定氨基酸的替代可以改变向性,并且使得SL3-2包膜可以通过使用由RMC1基因座编码的人多变性/间接受体进入而感染人细胞。
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 |
------------C07K14/15 | ...逆向转录病毒科,例如牛白血病病毒、猫白血病病毒、人T-细胞白血病-淋巴组织瘤病毒 |