Construction of an inducible nitric-oxide synthase gene transferring vector mediated by retrovirus.
OBJECTIVE
To construct an inducible nitric-oxide synthase (iNOS) gene transferring vector mediated by retrovirus.


METHODS
Recombinant DNA and polymerase chain reaction (PCR) amplification techniques were used.


RESULTS
With 2 steps of molecular cloning, the full-length cDNA encoding macrophage iNOS was isolated from plasmid pKSiNOS and subcloned into intermediate vector pSP72, adjusting the restriction enzyme sites in both 5'- and 3'-flanking ends of insert fragment. The retroviral vector pLNCXiNOS which contains iNOS coding region, cytomegalovirus promoter and neomycin resistance (neor) gene was further constructed. The authenticity of insertion size and orientation of iNOS sequence was verified by restriction mapping and PCR analysis with iNOS gene-specific primers.


CONCLUSIONS
Retroviral expression vector carrying iNOS fragment is obtained, which provides a material to establish a model of iNOS gene-modified neurons.
Zang
M W
MW
Department of Pharmacology, Chinese Academy of Medical Sciences, Beijing, China.
Peng
X X
XX
Hu
P
P
Liu
J S
JS
D003001:Cloning, Molecular; D018076:DNA, Complementary / Q000235:genetics; D018014:Gene Transfer Techniques; D005822:Genetic Vectors; D019001:Nitric Oxide Synthase / Q000235:genetics*; D052247:Nitric Oxide Synthase Type II; D016133:Polymerase Chain Reaction; D012190:Retroviridae / Q000235:genetics*
D018076:DNA, Complementary; D019001:Nitric Oxide Synthase; D052247:Nitric Oxide Synthase Type II