Discussion :: General Science - Synthetic Materials (Q.No.11)
The major ingredient of leather is
Answer: Option A
No answer description available for this question.
|Dr M Degra said: (Jun 7, 2012)|
|Collagen is animal protein|
|Sr Degra said: (Mar 1, 2013)|
|Collagen has an unusual amino acid composition and sequence:.
Glycine is found at almost every third residue.
Proline (Pro) makes up about 17% of collagen.
Collagen contains two uncommon derivative amino acids not directly inserted during translation. These amino acids are found at specific locations relative to glycine and are modified post-translationally by different enzymes, both of which require vitamin C as a cofactor.
Hydroxyproline (Hyp) , derived from proline.
Hydroxylysine (Hyl) , derived from lysine (Lys). Depending on the type of collagen, varying numbers of hydroxylysines are glycosylated (mostly having disaccharides attached).
Cortisol stimulates degradation of (skin) collagen into amino acids.
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