Amino acid content of some proteins

Amino acid content of some proteins

Table
Amino acid content of some proteins
protein
amino acid* alpha-casein gliadin edestin collagen
(ox hide) keratin
(wool) myosin
lysine 60.9 4.45 19.9 27.4 6.2 85
histidine 18.7 11.7 18.6 4.5 19.7 15
arginine 24.7 15.7 99.2 47.1 56.9 41
aspartic acid** 63.1 10.1 99.4 51.9 51.5 85
threonine 41.2 17.6 31.2 19.3 55.9 41
serine 63.1 46.7 55.7 41.0 79.5 41
glutamic acid** 153.1 311.0 144.9 76.2 99.0 155
proline 71.3 117.8 32.9 125.2 58.3 22
glycine 37.3 — 68.0 354.6 78.0 39
alanine 41.5 23.9 57.7 115.7 43.8 78
half-cystine 3.6 21.3 10.9 0.0 105.0 86
valine 53.8 22.7 54.6 21.4 46.6 42
methionine 16.8 11.3 16.4 6.5 4.0 22
isoleucine 48.8 90.8*** 41.9 14.5 29.0 42
leucine 60.3 60.0 28.2 59.9 79
tyrosine 44.7 17.7 26.9 5.5 28.7 18
phenylalanine 27.9 39.0 38.4 13.9 22.4 27
tryptophan 7.8 3.2 6.6 0.0 9.6 —
hydroxyproline 0.0 0.0 0.0 97.5 12.2 —
hydroxylysine —   —   —   8.0 1.2 —
total 839   765   883   1,058       863   832
average residual weight 119   131   113   95   117   120
*Number of gram molecules of amino acid per 100,000 grams of protein.
**The values for aspartic acid and glutamic acid include asparagine and glutamine, respectively.
***Isoleucine plus leucine.
See as table:

* * *


Universalium. 2010.

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