this collagen was characterized after limited pepsin treatment and identified as type i collagen by the following criteria : ( 1 ) it contained two alpha 1 chains and one alpha 2 chain , ( 2 ) its sedimentation behavior was identical to that of type i collagen from skin , and ( 3 ) its peptide map after limited proteolysis with staphylococcus aureus v8 protease was identical to that of type i collagen .
C0009325
collagen
C0041455
type i collagen