negative terminal
2.【Remember the following words and expressions:E.g. multimeter；circuit，current；voltage；resistance；digital multimeter；analogue multimeter；analogue multimeter scales；zero adjustment control；zero adjustment control for resistance ranges；measurement ranges switch；transistor test socket；meter probe；positive terminal；negative terminal；anode；cathode；red lead；black lead；power supply；connect in parallel；connect in series.
6.Fas associated phosphatase-1 (FAP-1) is a kind of important protein-tyrosine phosphatase founded in present years, which can inhibit fas from activation by its binding to the negative regulatory domain of fas (the cytosolic tail of fas i.e. the last 15 C-terminal amino acids of fas) and attenuate fas export from intracellular stores to the cell surface.
8.The binding ability of NS5B to 3′ terminal negative strand RNA sequences was approximately 10 folds higher than to 3′ UTR X region of positive strand RNA. The specificity of NS5B binding to 3′ terminal negative strand RNA sequences was tested by competition with unlabelled RNA probe or an unrelated RNA/proteins. Results showed that the excess amount of cold probe RNA was able to almost completely compete out the complex resulted from protein RNA interaction.
9.METHODS Endoscopic gastric mucosal biopsies were taken from 19 cases of Hp negative chronic superficial gastritis and 37 Hp positive chronic superficial gastritis. The gastric antral epithelial cell proliferation was evaluated by ki-67 immunohistochemical technique and apoptosis cells in the gastric mucosa were quantitated after terminal deoxynucleotidyl transferase mediated dUTP nick end-labelling and Hp cagA gene was detected by polymerase chain reaction (PCR).
