Table 4.
Sequences and activities of tripeptides on ferric ion reducing antioxidant power (FRAP) dataset a.
| No. | Sequence | Activity | No. | Sequence | Activity | No. | Sequence | Activity | No. | Sequence | Activity | No. | Sequence | Activity | No. | Sequence | Activity |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | LTC | 2.83 | 30 | LPM | 1.04 | 59 | YKK | 0.25 | 88 | NGE | −0.30 | 117 | ELK | −0.66 | 146 | KIP | −1.15 |
| 2 | CQC | 2.53 | 31 | TDY | 1.01 | 60 | AQA | 0.22 | 89 | QSA | −0.33 | 118 | PEQ | −0.66 | 147 | LLD | −1.22 |
| 3 | GTW | 2.52 | 32 | QCH | 1.00 | 61 | LRV | 0.20 | 90 | DAQ | −0.34 | 119 | IDA | −0.68 | 148 | DLE | −1.22 |
| 4 | LFC | 2.07 | 33 | TWY | 0.96 | 62 | PTP | 0.18 | 91 | ENS | −0.34 | 120 | LLA | −0.70 | 149 | PEV | −1.22 |
| 5 | CLV | 2.06 | 34 | RVY | 0.95 | 63 | ALN | 0.18 | 92 | ENG | −0.37 | 121 | ALA | −0.72 | 150 | LKP | −1.40 |
| 6 | QKW | 2.03 | 35 | KWE | 0.90 | 64 | LEI | 0.16 | 93 | NSA | −0.37 | 122 | GLD | −0.72 | 151 | ALE | −1.52 |
| 7 | CME | 1.99 | 36 | CLL | 0.89 | 65 | LVR | 0.13 | 94 | EKT | −0.38 | 123 | DIS | −0.72 | 152 | TQL | −1.52 |
| 8 | YLL | 1.91 | 37 | LAM | 0.85 | 66 | HIR | 0.12 | 95 | EQS | −0.38 | 124 | PEG | −0.72 | 153 | LEE | −1.52 |
| 9 | QCL | 1.69 | 38 | YSL | 0.81 | 67 | KKI | 0.11 | 96 | AMA | −0.41 | 125 | LDI | −0.74 | 154 | LEK | −1.70 |
| 10 | LAC | 1.69 | 39 | MKG | 0.80 | 68 | SFN | 0.07 | 97 | KID | −0.41 | 126 | AEP | −0.74 | 155 | DAL | −2.00 |
| 11 | GEC | 1.64 | 40 | QTM | 0.80 | 69 | SLL | 0.06 | 98 | GAQ | −0.43 | 127 | ALI | −0.77 | 156 | EVD | −2.00 |
| 12 | EQC | 1.52 | 41 | LAL | 0.76 | 70 | PAV | 0.04 | 99 | PLR | −0.44 | 128 | LDA | −0.77 | 157 | VDD | −2.00 |
| 13 | FCM | 1.51 | 42 | QAL | 0.73 | 71 | RLS | 0.04 | 100 | ILL | −0.46 | 129 | VFK | −0.77 | 158 | DEA | −2.00 |
| 14 | CHI | 1.45 | 43 | MEN | 0.73 | 72 | AGT | 0.04 | 101 | VRT | −0.46 | 130 | ALK | −0.77 | 159 | ALT | - |
| 15 | ACQ | 1.38 | 44 | MKC | 0.72 | 73 | LLF | 0.02 | 102 | IAE | −0.49 | 131 | AQK | −0.82 | 160 | KGL | - |
| 16 | EEL | 1.33 | 45 | LSF | 0.69 | 74 | PMH | 0.00 | 103 | QSL | −0.49 | 132 | IIA | −0.82 | 161 | IQK | - |
| 17 | WEN | 1.31 | 46 | TCG | 0.67 | 75 | EEQ | −0.01 | 104 | KTK | −0.51 | 133 | LIV | −0.85 | 162 | QKV | - |
| 18 | VYV | 1.19 | 47 | SLA | 0.65 | 76 | LVL | −0.02 | 105 | ASD | −0.52 | 134 | EGD | −0.85 | 163 | GDL | - |
| 19 | MHI | 1.16 | 48 | TMK | 0.64 | 77 | QLE | −0.05 | 106 | APL | −0.52 | 135 | QKK | −0.85 | 164 | EIL | - |
| 20 | CAQ | 1.12 | 49 | LDT | 0.62 | 78 | FDK | −0.07 | 107 | AQS | −0.57 | 136 | IPA | −0.85 | 165 | KII | - |
| 21 | WYS | 1.12 | 50 | EKF | 0.54 | 79 | LLL | −0.08 | 108 | ENK | −0.57 | 137 | SDI | −0.89 | 166 | NKV | - |
| 22 | KYL | 1.08 | 51 | VLV | 0.53 | 80 | SAP | −0.08 | 109 | TPE | −0.59 | 138 | VEE | −0.89 | 167 | DTD | - |
| 23 | CGA | 1.08 | 52 | MAA | 0.44 | 81 | LLQ | −0.12 | 110 | RTP | −0.59 | 139 | DDE | −0.89 | 168 | EPE | - |
| 24 | KKY | 1.08 | 53 | PTQ | 0.44 | 82 | NPT | −0.17 | 111 | VLD | −0.62 | 140 | KVL | −0.92 | 169 | EAL | - |
| 25 | NEN | 1.08 | 54 | VAG | 0.41 | 83 | FNP | −0.20 | 112 | IRL | −0.62 | 141 | KFD | −0.92 | 170 | DKA | - |
| 26 | ECA | 1.07 | 55 | ALP | 0.37 | 84 | LNE | −0.24 | 113 | AAS | −0.64 | 142 | IVT | −0.96 | 171 | KAL | - |
| 27 | DYK | 1.06 | 56 | AVF | 0.36 | 85 | SAE | −0.26 | 114 | LQK | −0.64 | 143 | VTQ | −0.96 | 172 | LKA | - |
| 28 | KCL | 1.05 | 57 | KVA | 0.31 | 86 | KPT | −0.28 | 115 | FKI | −0.64 | 144 | AEK | −0.96 | |||
| 29 | YVE | 1.05 | 58 | TQT | 0.26 | 87 | DIQ | −0.30 | 116 | ISL | −0.66 | 145 | TKI | −1.10 | □ | □ | □ |
a The data containing 172 antioxidant tripeptides was collected from the literature of Tian et al. [21]. Antioxidant activities of tripeptides were measured by the FRAP assay and were logarithmic transformed. Fourteen inactive peptides were removed before model building.