Antibody:

anti-Tropoelastin (ab21600)

Structure	Level	Pattern	Image	Note
TS24: lung	Present	Regionally restricted	6A	Expression exclusively around proximal airway through E16.5.
TS24: alveolar system	Absent		6A	No expression in distal airways.

Structure	Level	Pattern	Image	Note
TS25: lung	Present	Regionally restricted	6B	Expression in distal lung initiates at E17.5.
TS25: alveolar system	Present		6B

Structure	Level	Pattern	Image	Note
TS26: alveolar system	Present	Regionally restricted	6C	Elastin network continues to be elaborated over the nest several days. Authors report a complex elastin network in distal lung by E18.5.

Structure	Level	Pattern	Image	Note
TS27: alveolar system	Present	Regionally restricted	6D	Elastin network continues post-birth, remodeled into more tightly organized elastin bundles located around alveolar openings.

Structure	Level	Pattern	Image	Note
TS27: alveolar system	Present	Regionally restricted	6E	Elastin network continues post-birth, remodeled into more tightly organized elastin bundles located around alveolar openings.

Structure	Level	Pattern	Image	Note
TS28: alveolar system	Present	Regionally restricted	6F	Elastin network is significantly remodeled with fewer thinner fibers and more tightly organized elastin bundles around alveolar openings.