[HTML][HTML] Upstream Enhancer Activity in the Human Surfactant Protein B Gene Is Mediated by Thyroid Transcription Factor 1 (∗)

C Yan, Z Sever, JA Whitsett - Journal of Biological Chemistry, 1995 - ASBMB
Surfactant protein B (SP-B) is selectively expressed in bronchiolar and alveolar epithelial
cells of the lung. We identified an upstream enhancer located in the 5′-flanking region of
the human SP-B gene (− 439 to− 331 base pair, hSP-B (− 439/− 331)) by deletion analysis
of SP-B-luciferase constructs assessed in transfection assays in vitro. The element cis-
activated the expression of an SV40 promoter-luciferase reporter gene in a human
pulmunary adenocarcinoma cell line (H441-4). Three distinct binding sites for the nuclear …