Antibody:	anti-CCM2
Detection system:	Biotinylated secondary antibody/[Strept]avidin

Structure	Cell Type	Level	Pattern	Image	Note
TS21: interstitium of the testis	interstitial cell	Present		1a
TS21: germ cell of testis		Absent		1a
TS21: Sertoli cell	Sertoli cell	Absent		1a

Structure	Cell Type	Level	Pattern	Image	Note
TS22: interstitium of the testis	interstitial cell	Present		1b
TS22: germ cell of testis		Present		1b
TS22: Sertoli cell	Sertoli cell	Present		1b

Structure	Cell Type	Level	Pattern	Image	Note
TS23: seminiferous cord		Present		1c	Increased expression.
TS23: interstitium of the testis	interstitial cell	Moderate		1c	Moderate nuclear expression in interstitial cells around the cords.
TS23: germ cell of testis		Moderate		1c	Moderate nuclear expression in some gonocytes.

Structure	Cell Type	Level	Pattern	Image	Note
TS25: germ cell of testis		Present		1d
TS25: Sertoli cell	Sertoli cell	Absent		1d
TS25: interstitium of the testis	interstitial cell	Present		1d

Structure	Cell Type	Level	Pattern	Image	Note
TS27: germ cell of testis		Absent		1e
TS27: interstitium of the testis	interstitial cell	Present		1e	Some of the interstitial cells expressed in the nuclei and cytoplasm.

Structure	Cell Type	Level	Pattern	Image	Note
TS27: interstitium of the testis	interstitial cell	Present		1f	Some of the interstitial cells expressed in the nuclei and cytoplasm.
TS27: germ cell of testis		Present	Regionally restricted	1f	Expressed in the cytoplasm of some gonocytes in the basal side of the tubule.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: interstitium of the testis	interstitial cell	Present		1g	Cytoplasmic expression.
TS28: spermatocyte		Present	Regionally restricted	1g	Cytoplasmic expression in gonocytes located at the center of the seminiferous cords.
TS28: spermatogonium		Absent		1g	Not expressed in the spermatogonial cells at the basal side.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: primary spermatocyte		Present		1h	Expressed in the nuclei of pachytene spermatocytes.
TS28: spermatid		Present		1h	Round spermatids also showed nuclear expression in different seminiferous tubules.
TS28: interstitium of the testis	interstitial cell	Present		1h	Nuclear and cytoplasmic staining in different areas.

Structure	Level	Pattern	Image	Note
TS28: primary spermatocyte	Present		1i	Expressed in the nuclei of preleptotene and pachytene spermatocytes.

Structure	Level	Pattern	Image	Note
TS28: spermatid	Present		1j	Cytoplasmic expression in round spermatids.

Structure	Level	Pattern	Image	Note
TS28: spermatocyte	Present		1k	Nuclear and cytoplasmic expression in elongated spermatocytes at stages II-III, IX, and X.

Structure	Level	Pattern	Image	Note
TS27: oocyte	Present		3a

Structure	Level	Pattern	Image	Note
TS27: oocyte	Present		3c

Structure	Cell Type	Level	Pattern	Image	Note
TS28: oocyte		Present		3e	Expressed in the oocyte nuclei of primordial follicles and growing transient follicles.
TS28: follicle cell of primordial follicle		Present		3e	Expressed in pregranulosa cells.
TS28: follicle cell of primary follicle	granulosa cell	Present		3e
TS28: follicle cell of secondary follicle	granulosa cell	Present		3e
TS28: oocyte of primary follicle		Strong		3e	Nuclear expression.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: oocyte		Present		3g	Nuclear expression.
TS28: follicle cell of primary follicle	granulosa cell	Present		3g
TS28: follicle cell of secondary follicle	granulosa cell	Present		3g

Structure	Cell Type	Level	Pattern	Image	Note
TS28: oocyte of antral follicle		Absent		3i	Not expressed in grown oocytes in further-developed follicles.
TS28: ovary follicle cell	granulosa cell	Present		3i	Cytoplasmic expression.
TS28: corpus luteum	luteal cell	Present		3i	Cytoplasmic expression.