introduction: acinetobacter baumannii is associated with hospital-acquired infections. outer membrane protein a of a.baumannii (abompa) is a well-characterized virulence factor which has important roles in pathogenesis of this bacterium. methods: based on our pcr-sequencing of ompa gene in the clinical isolates, abompa protein can be categorized into two types, named here type-1 and type-2. we ...

Transforming growth factor beta 1 (TGF-beta 1) regulates the growth, differentiation, or function of nearly all cell types. We now report that TGF-beta 1 increases steady-state levels of its own message in six different normal and transformed cells in culture. Accumulation of TGF-beta 1 mRNA can be detected by Northern blot analysis within 3 h of addition of the peptide to cells, and enhanced m...