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The amino acids’ number and composition of SARS-CoV-2 M protein from ExPASy’s ProtParam tool.
| Amino acid | Number | Composition |
|---|---|---|
| Ala (A) | 19 | 8.6% |
| Arg (R) | 14 | 6.3% |
| Asn (N) | 11 | 5.0% |
| Asp (D) | 6 | 2.7% |
| Cys (C) | 4 | 1.8% |
| Gln (Q) | 4 | 1.8% |
| Glu (E) | 7 | 3.2% |
| Gly (G) | 14 | 6.3% |
| His (H) | 5 | 2.3% |
| Ile (I) | 20 | 9.0% |
| Leu (L) | 35 | 15.8% |
| Lys (K) | 7 | 3.2% |
| Met (M) | 4 | 1.8% |
| Phe (F) | 11 | 5.0% |
| Pro (P) | 5 | 2.3% |
| Ser (S) | 15 | 6.8% |
| Thr (T) | 13 | 5.9% |
| Trp (W) | 7 | 3.2% |
| Tyr (Y) | 9 | 4.1% |
| Val (V) | 12 | 5.4% |
