| 摘要 |
<p>Provided is the discovery and isolation of a cellular receptor for hepatitis A virus. Also provided is an isolated nucleic acid molecule comprising a nucleic acid encoding a polypeptide having the biological activity of a hepatitis A virus receptor. Also provided are vectors comprising the isolated nucleic acids encoding a hepatitis A virus receptor in host suitable for expression of the nucleic acids encoding the hepatitis receptor, fragments of the hepatitis A virus receptor, or homologs of the hepatitis A virus receptor. Further provided is a nonhuman transgenic animal which expresses a hepatitis A virus receptor, but does not express an endogenous, active hepatitis A virus receptor. Also provided is a method for screening drugs or vaccines utilizing the transgenic animal expressing a hepatitis A virus receptor. Also provided are methods for use of the purified hepatitis A virus receptor, such as separating hepatitis A virus from blood or other samples, detecting the presence of hepatitis A virus in a sample, determining the anti-hepatitis A virus binding of a compound, preventing hepatitis A virus infection in a subject, or treating a subject infected with hepatitis A virus. Also provided are nucleic acids which selectively hybridize with the nucleic encoding the hepatitis A virus receptor of the present invention.</p> |
