Sika Deer Antler Collagen Type I-Accelerated Osteogenesis in Bone Marrow Mesenchymal Stem Cells via the Smad Pathway

Table 3

Amino acid composition of collagen I.

	Retention time	Peak area	Peak area % ()	Peak area % ()	Content (%)
Asp	4.959	580.4	1.859	1.865	1.862
Glu	6.148	774.9	2.482	2.495	2.489
Hyp	8.766	2088.6	6.691	6.726	6.709
Ser	12.486	995.3	3.188	2.812	3.000
Gly	13.6	10020.9	32.197	32.006	32.102
His	17.519	74.3	0.238	0.234	0.236
Thr	21.431	601.9	1.928	1.9	1.914
Arg	22.418	2342.2	7.503	7.302	7.403
Ala	23.14	4284.1	13.724	14.005	13.865
Pro	24.457	4773.3	15.29	15.71	15.500
Tyr	29.67	120.4	0.386	0.381	0.384
Val	30.178	654.3	2.086	2.059	2.073
Met	31.389	85.8	0.275	0.269	0.272
Ile	33.953	248.2	0.795	0.795	0.795
Leu	34.149	934.4	2.993	2.950	2.972
Phe	35.085	613.7	1.966	1.926	1.946
Lys	35.744	1997.2	6.398	6.565	6.482