Gelatin occurs also in the cornea and the sclerotic coat of the eye; and in fish scales, the latter containing 80% of collagen, and 20% of ichthylepidin, a substance differing from gelatin in giving a wellmarked Millon's reaction.
In addition to this mineral component, the bone tissue matrix also contains type I collagen, a type of protein.
Collagen 1A1 (COL1A1) gene regulatory region collagen 1A1 (COL1A1) gene regulatory region Collagen 1A1 is the most abundant form of collagen in bone.
The larger diameter collagen fibers formed from Type I collagen are not blackened by silver.
Necessary to produce collagen, the connective material of all body tissues.