Construction of a eukaryotic expression vector for alpha-1-antitrypsin and the localization of the expression product in NIH 3T3 cells.
- Author:
Cheng-Wu LIU
1
;
Shui-Wang HU
;
Deng-Yu CHEN
;
Guo-Kai FENG
;
Peng DENG
;
Yong JIANG
Author Information
- Publication Type:Journal Article
- MeSH: Animals; Genetic Vectors; biosynthesis; genetics; Hemagglutinins; genetics; metabolism; Mice; Mice, Inbred BALB C; NIH 3T3 Cells; Plasmids; genetics; Recombinant Fusion Proteins; biosynthesis; genetics; Reverse Transcriptase Polymerase Chain Reaction; alpha 1-Antitrypsin; biosynthesis; genetics
- From: Journal of Southern Medical University 2009;29(3):408-411
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo construct a eukaryotic expression vector for alpha-1-antitrypsin (AAT) and detect its expression and localization in NIH 3T3 cells.
METHODSThe total RNA was extracted from the liver tissue of BALB/c mice, and the corresponding coding sequences for mouse AAT (GenBank accession No. NM_009243) were amplified by RT-PCR and cloned into hemagglutinin (HA)-tagged vector pcDNA3-HA. The construct was then transfected into NIH 3T3 cells, which were observed under fluorescence microscope.
RESULTSThe recombinant plasmid was verified by PCR, enzyme digestion and sequence analysis, and the fusion protein was highly expressed in NIH 3T3 cells. Under fluorescence microscope, the fusion protein was found to distribute mainly in the cytoplasm.
CONCLUSIONThe expression vector for AAT-HA fusion protein has been successfully constructed and effectively expressed in mammalian cells to allow future functional study of AAT in mammalian cells.
