Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Exclusion of DBA staining from the tips of the growing ureteric bud/collecting duct system. (a) Expression of laminin by the ureteric bud of an E11 kidney cultured for 3.5 days, showing the basement membrane in both the stalk and the tip regions; (b) the same kidney stained with DBA, which binds to the stalk but not to the tips. (c,d) The same exclusion of DBA from the tips is seen at 5 days of culture. Scale bar = 100 µm.
