Antibody:

anti-Integrin alpha3

Structure	Level	Pattern	Image	Note
TS22: lung epithelium	Present		2B	Expression became predominantly basal on more mature, centrally located airway epithelia.
TS22: mesothelium	Present		2B
TS22: lung mesenchyme	Absent		2B

Structure	Level	Pattern	Image	Note
TS17: lung mesenchyme	Absent
TS17: lung epithelium	Present			Expression was pericellular.

Structure	Level	Pattern	Image	Note
TS20: lung epithelium	Present			Expression was pericellular.

Structure	Level	Pattern	Image	Note
TS24: lung mesenchyme	Absent
TS24: lung epithelium	Present	Regionally restricted		Expression became predominantly basal on more mature, centrally located airway epithelia.

Structure	Level	Pattern	Image	Note
TS23: lung epithelium	Present	Regionally restricted	2C	Expression became predominantly basal on more mature, centrally located airway epithelia.

Structure	Level	Pattern	Image	Note
TS20: lung epithelium	Present		3D	Expression was detected on all lung epithelia including those at branch tips.