it is concentrated in human epithelial cells ( e.g . brush border of the kidney , placenta , intestine and choroid plexus ) , neuroepithelial cells ( subfornical organ , pallidonigral dendrites , median eminence ) and male genital tract ( testes , prostate , epididymides , seminal plasma ) .
C1963704
male genital tract
C0014533
epididymides