Antibody:	anti-FGFR2
Detection system:	horseradish peroxidase

Structure	Level	Pattern	Image	Note
TS20: lateral ventricle choroid plexus epithelium	Strong	Regionally restricted	1G	Epithelium highly immunoreactive. Expression particularly at distal regions of epithelium.
TS20: lateral ventricle choroid plexus stroma	Present		1G	Less expression in mesenchyme than in epithelium.

Structure	Level	Pattern	Image	Note
TS20: 4th ventricle choroid plexus epithelium	Strong	Regionally restricted	1H	Epithelium highly immunoreactive. Expression particularly in distal epithelium cells.
TS20: 4th ventricle choroid plexus stroma	Weak		1H	Less expression in mesenchyme than in epithelium.

Structure	Level	Pattern	Image	Note
TS23: lateral ventricle choroid plexus epithelium	Strong	Regionally restricted	1I	Strong expression persists in epithelium. Most intense expression at apical surfaces.
TS23: lateral ventricle choroid plexus stroma	Present		1I	Expression less intense in mesenchyme than in epithelium.
TS23: lateral ventricle ependyma	Weak		1I	Lesser decree of expression in surrounding ependyma.
TS23: telencephalon	Absent		1I	No expression in periventricular central nervous system tissue.

Structure	Level	Pattern	Image	Note
TS23: 4th ventricle choroid plexus epithelium	Strong	Widespread	1J	Expression in all epithelial cells, including choroid plexus 'stalks' where ependymal cells and choroid plexus epithelium cells form a continuum.
TS23: 4th ventricle choroid plexus stroma	Present		1J	Expression less intense in mesenchyme than in epithelium.

Structure	Level	Pattern	Image	Note
TS26: lateral ventricle choroid plexus epithelium	Strong	Regionally restricted	1K	Strong expression particularly toward apical surfaces of cells.
TS26: lateral ventricle choroid plexus stroma	Absent		1K

Structure	Level	Pattern	Image	Note
TS26: 4th ventricle choroid plexus epithelium	Strong	Regionally restricted	1L	Strong expression in epitheium, particularly toward apical surfaces of cells.
TS26: 4th ventricle choroid plexus stroma	Absent		1L
TS26: 4th ventricle ependyma	Absent		1L
TS26: hindbrain	Absent		1L	No expression in periventricular central nervous system.

Structure	Level	Pattern	Image	Note
TS20: choroid plexus epithelium	Strong
TS20: choroid plexus stroma	Present
TS20: ventricle ependyma	Strong
TS20: brain	Present	Regionally restricted		Expression in periventricular central nervous system tissue.

Structure	Level	Pattern	Image	Note
TS23: choroid plexus epithelium	Strong
TS23: choroid plexus stroma	Weak
TS23: ventricle ependyma	Weak
TS23: brain	Absent			No expression in periventricular central nervous system tissue.

Structure	Level	Pattern	Image	Note
TS26: choroid plexus epithelium	Strong
TS26: choroid plexus stroma	Weak
TS26: ventricle ependyma	Absent
TS26: brain	Absent			No expression in peNo expression in periventricular central nervous system tissue.riventricular central nervous system tissue.