General Knowledge - General Science - Discussion
Discussion Forum : General Science - Synthetic Materials (Q.No. 11)
11.
The major ingredient of leather is
Discussion:
2 comments Page 1 of 1.
Dr M Degra said:
1 decade ago
Collagen is animal protein
Sr Degra said:
1 decade ago
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.
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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