both the normal samples and hyaline cartilages of children with osteochondrodysplasias were shown to contain collagens type i and ii as well as collagen proteins with mr 160 ( a ) , 150 ( b ) , 140 ( c ) , 120 ( d ) , 110 ( e ) and 39 kd ( f ) , whose content in normal samples varied , depending on the donor age .
C0041455
collagens type i
C0009325
collagen