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. 2021 Jul 30;13(8):2657. doi: 10.3390/nu13082657

Table 4.

Collagen peptides identified in the acetone fraction of the hydrolysate produced with papain.

No Sequence Chain Length Mass (Da) Net Charge Fragment Position Protein Name
1 AAGDAGKPGERG 12 1084.5261 −2;3 581–592 Type1 collagen alpha1 chain
2 AGPAGPAGAR 10 823.43005 −2 1068–1077 Type1 collagen alpha1 chain
3 AGPPGADGQAGA 12 967.43592 −2 807–818 Type1 collagen alpha1 chain
4 AGPPGADGQAGAKGEPGDS 19 1637.7281 −2 807–825 Type1 collagen alpha1 chain
5 AGRPGEPGPAGPPGPTGE 18 1599.7641 −2;3 909–926 Type1 collagen alpha1 chain
6 AKGEPGDSGAKGDAG 15 1315.6004 −2;3 818–832 Type1 collagen alpha1 chain
7 AKGETGPAGAPG 12 1011.4985 +2 701–712 Type1 collagen alpha1 chain
8 AKIQLCPPPPQVPNACDMTTTV 22 2437.1804 +2 806–827 Complement factor H
9 APDPFRHY 8 1001.4719 −2 1202–1209 Type1 collagen alpha1 chain
10 APGEAGREGAAG 12 1041.4839 +2 1001–1012 Type1 collagen alpha1 chain
11 APGEKGESGPAGPGGPTG 18 1521.7059 −2 770–787 Type1 collagen alpha1 chain
12 APGEKGESGPAGPGGPTGS 19 1608.738 −2 770–788 Type1 collagen alpha1 chain
13 APGFPGGPGA 10 826.39735 +2 335–344 Type1 collagen alpha1 chain
14 ARGSPGSPGNDGAKGETGPAG 21 1838.8507 −2 689–709 Type1 collagen alpha1 chain
15 ASGPAGPRGPAGPAGSSGKD 20 1692.818 −2;3 1127–1146 Type1 collagen alpha1 chain
16 ASGPAGPRGPAGPAGSSGKDGVSG 24 1992.9613 −2;3 1127–1150 Type1 collagen alpha1 chain
17 ATEAGHSAAAWLLTAQGSGTHSPL 24 2333.14 +3 53–76 Peptidoglycan recognition protein 2
18 DEGQDDRPKVGLG 13 1384.6583 +2 34–46 Fibrinogen beta chain
19 DGAKGDSGPAGPKGEPGSSGE 21 1855.8184 −2;3 267–287 Type1 collagen alpha1 chain
20 DGHARGDSVSQGTGLAPGSP 20 1864.8664 +3 270–289 Fibrinogen alpha chain
21 DKGRLQSELKTMQD 14 1647.825 +3 279–292 Cytokeratin-4
22 DSALQLQDFYQEVANPLMTSVAF 23 2586.2312 +3 446–468 Inter-alpha-trypsin inhibitor heavy...
23 DSGGPLACEKNG 12 1203.519 +2 576–587
24 EKGESGPAGPGGPT 14 1239.5731 +2 773–786 Type1 collagen alpha1 chain
25 EKGEYFAFLETYGT 14 1653.7563 +2 336–349 Complement component C9
26 EKIGCSQPPQIDHG 14 1564.7304 +2 866–879 Complement factor H
27 ENGLQQLTFPLSSE 14 1561.7624 +2 184–197 Alpha-2-macroglobulin
28 ERGFPGE 7 790.36097 −2 671–677 Type1 collagen alpha1 chain
29 EVVSLTVTCCAE 12 1366.6109 +2 66–77 Vitamin D binding protein
30 EWNASQVLANLTW 13 1530.7467 +3 308–320 Alpha-2-antiplasmin
31 FMQSVTGWNMGRAL 14 1596.7541 +2 245–258 Angiotensinogen
32 GAAGDAGKPGERGVA 15 1311.6531 +3 580–594 Type1 collagen alpha1 chain
33 GAAGPKGGPGE 11 896.43519 +2 493–503 Type1 collagen alpha1 chain
34 GADGQAGAKGEPG 13 1113.5051 +2 811–823 Type1 collagen alpha1 chain
35 GAKGDAGSPGPAGPTG 16 1295.6106 +2 826–841 Type1 collagen alpha1 chain
36 GARGDKGEAGEAGE 14 1302.58 −2;3 1084–1097 Type1 collagen alpha1 chain
37 GDRGESGPAG 10 901.38897 +2 1027–1036 Type1 collagen alpha1 chain
38 GEPGDSGAKGDAGSPGPAGPTG 22 1837.8078 −2 820–841 Type1 collagen alpha1 chain
39 GEPGPGGVQ 9 796.37153 −2 442–450 Type1 collagen alpha1 chain
40 GEVGPAGGRGSDGPQGA 17 1467.6702 +2 346–362 Type1 collagen alpha1 chain
41 GFPGADGAAGPKG 13 1100.5251 +2 487–499 Type1 collagen alpha1 chain
42 GFPGPKGAAGDAGKP 15 1325.6728 +2 574–588 Type1 collagen alpha1 chain
43 GGDGAPGKDGIR 12 1098.5418 +2 745–756 Type1 collagen alpha1 chain
44 GGDGAPGKDGIRGM 14 1286.6037 +3 745–758 Type1 collagen alpha1 chain
45 GGPGATGPAGA 11 811.38243 +2 679–689 Type1 collagen alpha1 chain
46 GHRGFTGL 8 843.43514 +2 1102–1109 Type1 collagen alpha1 chain
47 GIAGQRGIVG 10 926.52976 −2 946–955 Type1 collagen alpha1 chain
48 GLVGPKGDTGE 11 1028.5138 +2 67–77 Adiponectin
49 GMKGCPAVMPIDHVYGTLGI 20 2115.0315 +2 88–107 periostin isoform X7
50 GPAGPAGPAG 10 750.36605 −2 1063–1072 Type1 collagen alpha1 chain
51 GPAGPAGSSGK 11 884.43519 +2 1135–1145 Type1 collagen alpha1 chain
52 GPAGPRGPA 9 778.40859 −2 1129–1137 Type1 collagen alpha1 chain
53 GPAGPRGPAGPAG 13 1060.5414 +2 1129–1141 Type1 collagen alpha1 chain
54 GPMGPRGPPGPA 12 1089.5389 −2 175–186 Type1 collagen alpha1 chain
55 GPMGPRGPPGPAG 13 1146.5604 −2 175–187 Type1 collagen alpha1 chain
56 GPRGPPGPAG 10 861.4457 +1 178–187 Type1 collagen alpha1 chain
57 GRSGRSGSFLYQ 12 1313.6476 +2 2406–2417 Truncated profilaggrin
58 GRSRSFLYQVSSHE 14 1651.8067 +3 1436–1449 Truncated profilaggrin
59 GSAGAQGARGDKGEAGE 17 1516.6866 −2 1078–1094 Type1 collagen alpha1 chain
60 GSIQIENGYFVHYF 14 1672.7886 +3 251–264 Inter-alpha-trypsin inhibitor heavy...
61 GSPGERGESGPPGPAG 16 1407.6379 +2 790–805 Type1 collagen alpha1 chain
62 GSPGSPGNDGAKGETGPAG 19 1611.7125 −2 691–709 Type1 collagen alpha1 chain
63 GVCISSLSCSRVGS 14 1467.681 +2 46–59
64 HRGFSGL 7 772.39802 +2 260–266 Type1 collagen alpha1 chain
65 HRGFTGL 7 786.41367 −2 1103–1109 Type1 collagen alpha1 chain
66 IRDVWGIEGPID 12 1368.7038 +2 192–203 vitronectin
67 KGDAGSPGPAGPTG 14 1167.552 +2 828–841 Type1 collagen alpha1 chain
68 KNGDRGESGPAGPAGPAGPA 20 1761.8394 −2 1055–1074 Type1 collagen alpha1 chain
69 KNGDRGESGPAGPAGPAGPAG 21 1818.8609 −2 1055–1075 Type1 collagen alpha1 chain
70 KNGDRGESGPAGPAGPAGPAGA 22 1889.898 −2 1055–1076 Type1 collagen alpha1 chain
71 KNGDRGESGPAGPAGPAGPAGAR 23 2045.9991 −3 1055–1077 Type1 collagen alpha1 chain
72 KSENARLVLQI 11 1269.7405 +3 158–168 Keratin, type I cuticular Ha6
73 LDGAKGDSGPAGPK 14 1268.6361 +3 266–279 Type1 collagen alpha1 chain
74 LGIANPATDF 10 1017.5131 −2 728–737 Inter-alpha-trypsin inhibitor heavy...
75 LMGEVARHSVQDGK 14 1525.7671 +3 103–116 Peptidoglycan recognition protein 2
76 LPGPTG 6 540.29076 −1 968–973
77 LPGPTGEPGKQGPGGPSGE 19 1717.8271 +2 968–986 Type1 collagen alpha1 chain
78 LVDTELNCTVLQMD 14 1649.7641 +2 245–258 Thyroxine-binding globulin
79 MHGLISDAEERGER 14 1598.7471 +2 409–422 Keratin, type II cytoskeletal 1b
80 MSAPGPMGPMGPRGPPGPAG 20 1817.8375 +3 168–187 Type1 collagen alpha1 chain
81 MSAPGPMGPMGPRGPPGPAGSN 22 2018.9125 +2 168–189 Type1 collagen alpha1 chain
82 NGDRGESGPAGPAGPAGPAGA 21 1761.803 −2 1056–1076 Type1 collagen alpha1 chain
83 NGDRGESGPAGPAGPAGPAGAR 22 1917.9041 −2;3 1056–1077 Type1 collagen alpha1 chain
84 PAGPAGQDGRAGPPGPSGARG 21 1828.8929 +3 548–568 Type1 collagen alpha1 chain
85 PGPTGEPGKQGPGGPSGE 18 1604.7431 −2 969–986 Type1 collagen alpha1 chain
86 PYRVYCDMKTEKG 13 1645.7592 +2 269–281 Fibrinogen beta chain
87 QLEPEE 6 743.33375 +1 234–239 Complement C3
88 RGDKGEAGEAGE 12 1174.5214 −2 1086–1097 Type1 collagen alpha1 chain
89 RGEGGPAGAPGF 12 1071.5098 +2 624–635 Type1 collagen alpha1 chain
90 RGESGPAGPAGPAGPAGA 18 1475.7117 +2 1059–1076 Type1 collagen alpha1 chain
91 RGPPGPMGPPG 11 1018.5018 +2 987–997 Type1 collagen alpha1 chain
92 RGSAGAQGARGDKGEAGE 18 1672.7877 +3 1077–1094 Type1 collagen alpha1 chain
93 RGSAGAQGARGDKGEAGEA 19 1743.8248 −3 1077–1095 Type1 collagen alpha1 chain
94 RGSPGSPGNDGAKGETGPAG 20 1767.8136 −2 690–709 Type1 collagen alpha1 chain
95 SGAPGEAGREGAAGN 15 1299.5804 −2 999–1013 Type1 collagen alpha1 chain
96 SGAPGEAGREGAAGNEGAPGRD 22 1981.8838 +2 999–1020 Type1 collagen alpha1 chain
97 SGPAGPRGPAGPA 13 1090.552 +2 1128–1140 Type1 collagen alpha1 chain
98 SGPPGPAG 8 638.30239 +1 798–805 Type1 collagen alpha1 chain
99 SRGERGFPGERGGPGATGPAG 21 1968.9514 +3 668–688 Type1 collagen alpha1 chain
100 SVMADATSVPVTE 13 1305.6122 +2 25–37 Protein HP-25 homolog 2
101 VAQPSQE 7 757.36063 −2 1194–1200 Type1 collagen alpha1 chain
102 VKGGDGAPGKDGIRG 15 1382.7266 −2 743–757 Type1 collagen alpha1 chain
103 VKGGDGAPGKDGIRGM 16 1513.7671 +3 743–758 Type1 collagen alpha1 chain