Cloning and Sequence Analysis of Chinese CXCR4

Abstrach In order to acquire the CXCR4 gene and develop the method to diagnose and treat AIDS pa— tient，the cDNA of CXCR4 was doned by RT-nPCR from peripheral blood mononuclear cells of a Chi— nese．An expected target fragment was identified by restriction enzyme digestion and DNA sequence data．The sequence data showed that CXCR4 gene is 1 059 nt encoding 352 amino acids．Compared with the sequence from GeneBank，there were only two deferent sites．Searched in GenBank，it was found that the segment had high homologenicity with M99293、XM 051223、XM051224、XM05 1225． The comparison result showed that the cloned segment included intact cod ing sequence and two base． pair deference