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INSM1 is a downstream target gene of neurogenin 3 (ngn3). A promoter construct containing the −426/+40bp region transiently co-transfected into NIH-3T3 cells with a ngn3 expression plasmid resulted in a 12-fold increase in promoter activity. The ngn3/E47 heterodimer selectively binds and activates the E-box3 of the INSM1 promoter. The endogenous ngn3 and CREB-binding protein (CBP) co-activator occupy...
ArsA protein is the soluble subunit of the Ars anion pump in the Escherichia coli membrane which extrudes arsenite or antimonite from the cytoplasm. The molecular weight of the subunit is 63 kDa. In the cell it hydrolyzes ATP, and the energy released is used by the membrane-bound subunit ArsB to transport the substrates across the membrane. We have obtained two-dimensional crystals of ArsA in the...
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