Antibody:	anti-ATF6
Detection system:	Biotinylated secondary antibody/[Strept]avidin coupled to horseradish peroxidase

Structure	Level	Pattern	Image	Note
TS23: epiphyseal plate hypertrophic zone	Present	Regionally restricted	2b	Prominent nuclear expression throughout growth plate chondrocytes in both proliferating and hypertrophic zones.
TS23: epiphyseal plate proliferative zone	Present	Regionally restricted	2b	Prominent nuclear expression throughout growth plate chondrocytes in both proliferating and hypertrophic zones.
TS23: tibia	Present	Regionally restricted	2b	Prominent nuclear expression throughout growth plate chondrocytes in both proliferating and hypertrophic zones.

Structure	Level	Pattern	Image	Note
TS25: epiphyseal plate hypertrophic zone	Present	Regionally restricted	2c	Prominent nuclear expression throughout growth plate chondrocytes in both proliferating and hypertrophic zones.
TS25: epiphyseal plate proliferative zone	Present	Regionally restricted	2c	Prominent nuclear expression throughout growth plate chondrocytes in both proliferating and hypertrophic zones.
TS25: tibia	Present	Regionally restricted	2c	Prominent nuclear expression throughout growth plate chondrocytes in both proliferating and hypertrophic zones.

Structure	Level	Pattern	Image	Note
TS27: epiphyseal plate hypertrophic zone	Present	Regionally restricted	2d	Prominent nuclear expression throughout growth plate chondrocytes in both proliferating and hypertrophic zones.
TS27: epiphyseal plate proliferative zone	Present	Regionally restricted	2d	Prominent nuclear expression throughout growth plate chondrocytes in both proliferating and hypertrophic zones.
TS27: tibia	Present	Regionally restricted	2d	Prominent nuclear expression throughout growth plate chondrocytes in both proliferating and hypertrophic zones.

Structure	Level	Pattern	Image	Note
TS28: epiphyseal plate hypertrophic zone	Present	Regionally restricted	2e	Prominent nuclear expression throughout growth plate chondrocytes in both proliferating and hypertrophic zones.
TS28: epiphyseal plate proliferative zone	Present	Regionally restricted	2e	Prominent nuclear expression throughout growth plate chondrocytes in both proliferating and hypertrophic zones.
TS28: tibia	Present	Regionally restricted	2e	Prominent nuclear expression throughout growth plate chondrocytes in both proliferating and hypertrophic zones.

Structure	Level	Pattern	Image	Note
TS23: epiphyseal plate hypertrophic zone	Strong	Regionally restricted	2g	Especially highly expressed in hypertrophic chondrocyte stage

Structure	Level	Pattern	Image	Note
TS25: epiphyseal plate hypertrophic zone	Strong	Regionally restricted	2h	Especially highly expressed in hypertrophic chondrocyte stage

Structure	Level	Pattern	Image	Note
TS27: epiphyseal plate hypertrophic zone	Strong	Regionally restricted	2i	Especially highly expressed in hypertrophic chondrocyte stage

Structure	Level	Pattern	Image	Note
TS28: epiphyseal plate hypertrophic zone	Strong	Regionally restricted	2j	Especially highly expressed in hypertrophic chondrocyte stage