Table 4 List of used codons based on frequency in ORF4 of hepatitis E viruses
From: Analysis of codon usage patterns in open reading frame 4 of hepatitis E viruses
Host organism | Codon (aa) | Frequency | Codon (aa) | Frequency |
|---|---|---|---|---|
Human | ||||
Most frequent | CCC (P) | 11 | GCC(A) | 5 |
| Â | CCG(P) | 10 | CCA(P) | 5 |
| Â | UUG(L) | 8 | UCA(S) | 5 |
| Â | UGC (C) | 7 | CAG(Q) | 5 |
| Â | UCG(S) | 5.6 | GGC(G) | 5 |
Least frequent | CUU(L) | 1 | AAC(N) | 1 |
| Â | CUC(L) | 1 | AAG(K) | 1 |
| Â | GUC(V) | 1 | GAU(D) | 1 |
| Â | GUA(V) | 1 | CGU(R) | 1 |
| Â | ACU(T) | 1 | AGA(R) | 1 |
| Â | GCA(A) | 1 | GGU(G) | 1 |
| Â | UAU(Y) | 1 | GGA(G) | 1 |
| Â | CAA(Q) | 1 | Â | Â |
Not used | UUU(F) | 0 | AAU(N) | 0 |
| Â | AUA(I) | 0 | AAA(K) | 0 |
| Â | UCU(S) | 0 | GAC(D) | 0 |
| Â | UAC(Y) | 0 | GAA(E) | 0 |
| Â | CAU(H) | 0 | UGU(C) | 0 |
| Â | CAC(H) | 0 | AAU(N) | 0 |
Rat | ||||
Most frequent | CUG(L) | 7.6 | AGC(S) | 6.1 |
| Â | UUG(L) | 7.4 | UUC(F) | 5.7 |
| Â | CGC(R) | 7.1 | CUC(L) | 5.6 |
| Â | CUA(L) | 7 | CGG(R) | 5.4 |
| Â | GCC(A) | 6.7 | UGC(C) | 5 |
| Â | AGG(R) | 6.6 | GGC(G) | 5 |
Least frequent | CAU(H) | 0.1 | CGA(R) | 0.7 |
| Â | AGA(R) | 0.1 | CAA(Q) | 0.7 |
| Â | GAC(D) | 0.1 | ACU(T) | 1 |
| Â | GAA(E) | 0.1 | UAU(Y) | 1 |
| Â | GUC(V) | 0.3 | CGU(R) | 1 |
| Â | CAC(H) | 0.6 | Â | Â |
Unused | AAA(K) | 0 | GGA(G) | 0 |
| Â | AGU(S) | 0 | Â | Â |
Ferret | ||||
Most frequent | UUG(L) | 8.5 | UCU(S) | 5.7 |
| Â | CGC(R) | 8.5 | CUA(L) | 5.3 |
| Â | CAG(Q) | 8.3 | UUU(F) | 5.2 |
| Â | AGG(R) | 6.8 | CUG(L) | 5 |
| Â | GCC(A) | 5.8 | CCC(P) | 5 |
Least frequent | AAG(K) | 0.2 | GUA(V) | 1 |
| Â | CAU(H) | 0.2 | ACU(T) | 1 |
| Â | CGA(R) | 0.2 | UAU(Y) | 1 |
| Â | AAC(N) | 0.4 | GAA(E) | 1 |
| Â | UUA(L) | 1 | AGA(R) | 1 |
Unused codons | AAU(N) | 0 | GAC(D) | 0 |
| Â | AAA(K) | 0 | AGU(S) | 0 |